Form 6-K - Report of foreign issuer [Rules 13a-16 and 15d-16]

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 6K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a16 OR 15d16 UNDER THE

SECURITIES EXCHANGE ACT OF 1934

For May 14, 2024

Harmony Gold Mining Company Limited

Randfontein Office Park

Corner Main Reef Road and Ward Avenue Randfontein, 1759

South Africa

(Address of principal executive offices)

(Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20 F or Form 40 F.)

Form 20F ☒ Form 40F ☐

(Indicate by check mark whether the registrant by furnishing the information contained in this form is also thereby furnishing the information to the Commission pursuant to Rule 12g32(b) under the Securities Exchange Act of 1934.)

Yes ☐ No ☒

Explanatory Note

This Report on Form 6-K contains an amended Technical Report Summary for a material mining property of Harmony Gold Mining Company Limited (the “Company”) in respect of its operations pursuant to Subpart 1300 of Regulation S-K under the Securities Act of 1933.

The contents of this Form 6-K, including Exhibit 99.12 annexed hereto, are incorporated by reference to the Company’s Annual Report on Form 20-F for the year ended June 30 2023, filed by the Company with the Securities and Exchange Commission on October 31, 2023, and shall be a part thereof from the date on which this Form 6-K is furnished, to the extent not superseded by documents or reports subsequently filed or furnished.


Exhibit Number			Description

96.12			Technical Report Summary of the Mineral Resources and Mineral Reserves for Tshepong North Free State Province, South Africa

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.


			Harmony Gold Mining Company Limited

Date: May 14, 2024			By: /s/ Boipelo Lekubo
			Name: Boipelo Lekubo
			Title: Financial Director

Refiling of Technical Report Summary for Tshepong North, Free State Province, South Africa

Herewith find the updated version of the previously filed Technical Report Summary (“TRS”) for Harmony Gold Mining Company Limited’s (the “Company” or “Harmony”) Tshepong North operation (the “Operation”). This filing supersedes the original TRS filed on October 31, 2023 for the Operation.

The refiling of the TRS is to align the disclosures made within the report to the requirements of the S-K 1300 regulatory framework, specifically Item 1302(e)(6) of Regulation S-K.

In order to meet the aforementioned requirements, a revised mine plan was prepared to only reflect the declared Mineral Reserves, thereby reducing the life of the operation to five years. The discounted cash flow (“DCF”) analysis in the Tshepong North TRS has been updated to exclude all Inferred Mineral Resources in the assessment of economic viability of the Mineral Reserve, resulting in a positive net present value (“NPV”). Cash flows included in the amended TRS have therefore been updated to represent the extraction of the Mineral Reserves without Inferred Mineral Resources. The declared Mineral Reserve estimates and assumptions used within the DCF analysis remain consistent with those used in the original filing, as more fully described in the TRS and summarised below.

The specific changes to the mine plan and the resulting DCF disclosures can be summarised as follows:

•The mine plan was aligned to the mine’s current production profile. This change resulted in a revised timing of the mining blocks to be extracted, thereby affecting the revenue cash flows.

•The exclusion of the Inferred Mineral Resources from the mine plan led to reduced metres advanced, capital development and tonnes milled. This resulted in a reduction in the operating and capital costs.

Critical assumptions used in the DCF model that are unchanged from the previous DCF presented are:

•The Mineral Reserve commodity price assumption

•Planning parameters

•Modifying factors

•The Mineral Reserves declared and

•Discount rates.

The updated cash flows represent the Operation based solely on Mineral Reserves which will result in a variance when compared to our domestic filing, which are done pursuant to The South African Code for Reporting of Exploration Results, Mineral Resources and Mineral Reserves (“the SAMREC Code”), which allows for the inclusion of Inferred Mineral Resources.

Harmony remains committed to transparency and accurate reporting and the updated TRS, aligned with the S-K 1300 regulations, is pursuant to these values.

HARMONY GOLD MINING COMPANY LIMITED

Technical Report Summary of the

Mineral Resources and Mineral Reserves

for

Tshepong North

Free State Province, South Africa

Effective Date: 30 June 2023

Final Report Date: 31 August 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa


IMPORTANT NOTICE This Technical Report Summary has been prepared for Harmony Gold Mining Company Limited in support of disclosure and filing requirements with the United States Securities and Exchange Commission’s (SEC) under Regulation S-K 1300; 229.601(b)(96). The quality of information, estimates, and conclusions contained in this Technical Report Summary apply as of the effective date of this report. Subsequent events that may have occurred since that date may have resulted in material changes to such information, estimates and conclusions in this summary. No other party is entitled to rely on this report beyond its intended use and any reliance by a third party on this report is done so at that party’s own risk.

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa

List of Contents


1	Executive Summary			1
2	Introduction			5
3	Property Description and Location			6
	3.1	Mineral Tenure		6
	3.2	Property Permitting Requirements		6
4	Accessibility, Climate, Local Resources, Infrastructure and Physiography			9
	4.1	Accessibility		9
	4.2	Physiology and Climate		9
	4.3	Local Resources and Infrastructure		9
5	History			10
	5.1	Historical Ownership and Development		10
	5.2	Historical Exploration		10
	5.3	Previous Mineral Resource and Mineral Reserve Estimates		10
	5.4	Past Production		11
6	Geological Setting, Mineralisation and Deposit			13
	6.1	Regional Geology		13
	6.2	Local Geology		13
	6.3	Property Geology		16
		6.3.1	Basal Reef Lithology	16
		6.3.2	B Reef Lithology	16
		6.3.3	Structure	19
	6.4	Mineralisation		19
		6.4.1	Basal Reef	20
		6.4.2	B Reef	20
		6.4.3	Alteration	20
	6.5	Deposit Type		20
	6.6	Commentary on Geological Setting, Mineralisation and Deposit		20
7	Exploration			21
	7.1	Geophysical Surveys		21
	7.2	Topographic Surveys		21
	7.3	Underground Mapping		21
	7.4	Channel Sampling Methods and Sample Quality		21
	7.5	Surface Drilling Campaigns, Procedures, Sampling, Recoveries and Results		21
		7.5.1	Drilling Methods	24
		7.5.2	Collar and Downhole Surveys	24
		7.5.3	Logging Procedures	24
		7.5.4	Drilling Results	24
		7.5.5	Core Recovery	27
		7.5.6	Sample Length and True Thickness	27
	7.6	Underground Drilling Campaigns, Procedures and Sampling		27
		7.6.1	Drilling Methods	27
		7.6.2	Collar and Downhole Surveys	28
		7.6.3	Logging Procedures	28
		7.6.4	Drilling Results	28
		7.6.5	Core Recovery	29
		7.6.6	Sample Length and True Thickness	29
	7.7	Hydrogeology		29
	7.8	Geotechnical Data		29
	7.9	Commentary on Exploration		31
8	Sample Preparation, Analyses and Security			32

Effective Date: 30 June 2023

iii

Technical Report Summary for

Tshepong North, Free State Province, South Africa


	8.1	Sampling Method and Approach		32
		8.1.1	Channel Samples	32
		8.1.2	Core Samples	32
	8.2	Density Determination		33
	8.3	Sample Security		33
	8.4	Sample Storage		33
	8.5	Laboratories Used		33
	8.6	Laboratory Sample Preparation		33
	8.7	Assaying Methods and Analytical Procedures		34
	8.8	Sampling and Assay Quality Control (“QC”) Procedures and Quality Assurance (“QA”)		34
		8.8.1	Standards	34
		8.8.2	Blanks	35
		8.8.3	Duplicates	35
	8.9	Comment on Sample Preparation, Analyses and Security		35
9	Data verification			36
	9.1	Databases		36
	9.2	Data Verification Procedures		36
	9.3	Limitations to the Data Verification		36
	9.4	Comment on Data Verification		36
10	Mineral Processing and Metallurgical Testing			37




11	Mineral Resource Estimate			38
	11.1	Geological Database		38
	11.2	Global Statistics		38
	11.3	Geological Interpretation		39
	11.4	Structural Wireframe Model		39
	11.5	Compositing		39
	11.6	Capping		40
	11.7	Variography		40
	11.8	Mineral Resource Estimation Methods and Parameters		42
	11.9	Density Assignment		44
	11.10	Model Validation		44
	11.11	Mineral Resource Evaluation		44
	11.12	Mineral Resource Classification and Uncertainties		44
	11.13	Mineral Resource Estimate		45
	11.14	Mineral Resource Reconciliation		48
	11.15	Comment on Mineral Resource Estimates		48
12	Mineral Reserve Estimate			49





	12.1	Tshepong		49
		12.1.1	Key Assumptions, Parameters, and Methods Used to Estimate the Mineral Reserve	49
		12.1.2	Modifying Factors	49
		12.1.3	Mineral Reserve Estimate	50
		12.1.4	Mineral Reserve Reconciliation	50
	12.2	Commentary on Mineral Reserve Estimate		50
13	Mining Method			52
	13.1	Mining Operations		52

		13.1.2	Tshepong	52
		13.1.3	Sequential Grid Mining (“SGM”)	52
		13.1.4	Open Stoping	53
		13.1.5	Breast Mining	53
		13.1.6	Integrated Approach	53
	13.2	Mine Design		53

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa


		13.2.1	Mine Design Parameters	55
	13.3	Geotechnical Considerations and Seismic Monitoring		56
	13.4	Geohydrological Considerations		56
	13.5	Mine Plan Development and Life of Mine (“LOM ”) Schedule		57
	13.6	Mining Rates		60
	13.7	Grade and Dilution Control		60
	13.8	Mining Equipment and Machinery		60
	13.9	Ore transport		61
	13.10	Mining Personnel		61
	13.11	Commentary on Mining Methods		63
14	Processing and Recovery Methods			64
	14.1	Mineral Processing Description		64
	14.2	Plant Throughput, Design, Equipment Characteristics and Specifications		66
	14.3	Energy, Water, Process Material and Personnel Requirements		66
		14.3.1	Energy	66
		14.3.2	Water	66
		14.3.3	Process Material	66
		14.3.4	Personnel	66
	14.4	Commentary on the Processing and Recovery Methods		66
15	Infrastructure			68
	15.1	Surface Infrastructure		68
		15.1.1	Ore and Waste Rock Storage Facilities	68
		15.1.2	Tailings Storage Facilities	68
		15.1.3	Rail	68
	15.2	Underground Infrastructure and Shafts		72

	15.3	Power and Electrical		72
	15.4	Water Usage		72
	15.5	Logistics and Supply		72
	15.6	Commentary on Infrastructure		72
16	Market Studies			73
	16.1	Market Overview		73
	16.2	Global Production and Supply		73
		16.2.1	New Mine Production	74
		16.2.2	Recycling	74
	16.3	Global Consumption and Demand		74
		16.3.1	Jewellery	74
		16.3.2	Investment	75
		16.3.3	Currency	75
	16.4	Gold Price		76
		16.4.1	Historical Gold Price	76
		16.4.2	Forecast Gold Price	76
		16.4.3	Harmony Group Gold Hedging Policy	77
	16.5	Commentary on Market Studies		78
	16.6	Material Contracts		78
17	Environmental Studies, Permitting and Plans, Negotiations, or Agreements with Local Individuals or Groups			79
	17.1	Results of Environmental Studies		79
	17.2	Waste and Tailings Disposal, Monitoring & Water Management		79
	17.3	Permitting and Licences		80
	17.4	Local Stakeholder Plans and Agreements		81
	17.5	Mine Closure Plans		81

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa


	17.6	Status of Issues Related to Environmental Compliance, Permitting, and Local Individuals or Groups		82
	17.7	Local Procurement and Hiring		82
	17.8	Commentary on Environmental Studies, Permitting and Plans, Negotiations, or Agreements with Local Individuals or Groups		82
18	Capital and Operating Costs			84
	18.1	Capital Costs		84
	18.2	Operating Costs		84
	18.3	Comment on Capital and Operating Costs		84
19	Economic Analysis			86
	19.1	Key Economic Assumptions and Parameters		86
		19.1.1	Gold Price	86
		19.1.2	Exchange Rate	86
		19.1.3	Royalties	86
		19.1.4	Taxes	87
		19.1.5	Summary	87
	19.2	Economic Analysis		87
	19.3	Sensitivity Analysis		88
20	Adjacent properties			91
21	Other Relevant Data and Information			92
22	Interpretation and Conclusions			93
23	Recommendations			95
24	References			96
25	Reliance on Information Provided by the Registrant			97

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa

List of Figures


Figure 3-1: Location of Tshepong North in the Free State Goldfield			7
Figure 3-2: Mineral Tenure for Tshepong North			8
Figure 5-1: Graph of Past Production – Tonnes and Grade			12
Figure 5-2: Graph of Past Metal Production			12
Figure 6-1: Regional Geology of the Witwatersrand Basin			14
Figure 6-2: Simplified stratigraphy of the Free State Goldfield			15
Figure 6-3: Structural Geology of the Free State Goldfields			17
Figure 6-4: Tshepong North Cross Section			18
Figure 7-1: Location of Channel Samples Collected from the Basal Reef			22
Figure 7-2: Location of Channel Samples Collected from the B Reef			23
Figure 7-3: Location of Surface and Underground Drill Holes on the Basal Reef			25
Figure 7-4: Location of Surface and Underground Drill Holes on the B Reef			26
Figure 11-1: Tshepong North Basal and B Reef Geozones			41
Figure 11-2: Tshepong North Basal Reef and B Reef Estimation Results			43
Figure 11-3: Location and Classification of Tshepong North Mineral Resources and Mineral Reserves for the Basal Reef			46
Figure 11-4: Location and Classification of Tshepong North Mineral Resources and Mineral Reserves for the B Reef			47
Figure 13-1: Schematic Representation of the SGM Sequence			54
Figure 13-2: Tshepong North LOM Plan			58


Figure 13-3 : Graph of Tshepong North Mineral Rese r ve Plan – Tonnes and Grade			59
Figure 13-4 : Graph of Tshepong North Mineral Rese rve Plan – Gold Produced (oz)			59
Figure 13-5 : Tshepong North Shaft and Underground Infrastructure			62
Figure 14-1: Schematic Flow Diagram of the Metallurgical Process			65
Figure 14-2: Graph of Tshepong North Historical Recovery Factor (18 month actual)			67
Figure 15-1: Tshepong North Surface Layout and Infrastructure			69

Figure 15-2 : Tshepong North Detailed Surface Infrastructure			70

Figure 15-3 : Harmony One Plant Detailed Surface Infrastructure			71
Figure 16-1: Graph of Annual Gold Price History – ZAR/kg			78
Figure 19-1: Graph of Consensus ZAR : USD Exchange Rate Forecast			87

Effective Date: 30 June 2023

vii

Technical Report Summary for

Tshepong North, Free State Province, South Africa

List of Tables


Table 1-1: Summary of Tshepong North Mineral Resources as at 30 June 2023 (Exclusive of Mineral Reserves)			2
Table 1-2: Summary of Tshepong North Mineral Reserves as at 30 June 2023			3
Table 1-3 : Summary of Capital Cost Estimate for Tshepong North			4
Table 1-4 : Summary of Operating Cost Estimate for Tshepong North			4
Table 1-5 : Status of Environmental Permits and Licences			4
Table 2-1: QP Qualification, Section Responsibilities and Personal Inspections			5
Table 3-1: Summary of Mining Rights for Tshepong North			6
Table 5-1: Summary of Historical Ownership Changes and Activities of Tshepong North			10
Table 5-2 : Summary of the Previous Tshepong North Mineral Resources as at 30 June 2022 (Exclusive of Mineral Reserves)			11
Table 5-3 : Summary of the Previous Tshepong North Mineral Reserves as at 30 June 2022			11
Table 7-1 : Summary of Surface and Underground Drilling for Tshepong North			27
Table 7-2 : Drill hole Acceptance Criteria			27
Table 7-3: Summary of Recent Tshepong North Underground Drill Holes Intersecting the Basal Reef			30
Table 7-4: Summary of Recent Tshepong North Underground Drill Holes Intersecting the B Reef			31
Table 8-1: Summary of Harmony Assay Laboratory SRM Performance for Tshepong North			34
Table 11-1: Global Statistics for Basal and B Reef			39
Table 11-2: Capping Values by Reef and Geozone			42
Table 11-3: Harmony Economic Assumptions (30 June 2023)			44
Table 11-4 : Summary of Tshepong North Mineral Resources as at 30 June 2023 (Exclusive of Mineral Reserves)			48
Table 12-1 : Tshepong Modifying Factors Used for Mineral Reserve Determination			50
Table 12-2 : Summary of Tshepong North Mineral Reserves as at 30 June 2023			50
Table 13-1 : Tshepong North Mine Design Parameters			55
Table 13-2 : Tshepong North Mine Mining Personnel			61
Table 14-1: Key Design Parameters and Equipment Specifications			66
Table 14-2: Harmony One Plant Consumables			66
Table 14-3: Harmony One Plant Personnel			66
Table 16-1 Consensus View of Forecast Gold Price USD/Ounce			77
Table 16-2 : Material Contracts			78
Table 17-1: Status of Environmental Permits and Licences			81
Table 17-2: Mine Closure Liability			83
Table 17-3: Rehabilitation Assurance			83
Table 18-1: Summary of Capital Cost Estimate for Tshepong North			84
Table 18-2: Summary of Operating Cost Estimate for Tshepong North			85
Table 19-1: Conversions Used in Gold Price Calculations			86
Table 19-2: ZAR:USD Exchange Rate Performance (June 2020 – June 2023)			86
Table 19-3 : Key Economic Assumptions and Parameters for Tshepong North Cash Flow			87
Table 19-4 : Tshepong North Cash Flow Mineral Reserves			89
Table 19-5 : Gold Price Sensitivity Analysis Mineral Reserves			90
Table 19-6 : Total Operating Cost Sensitivity Analysis Mineral Reserves			90
Table 25 1: Other Specialists			97

Effective Date: 30 June 2023

viii

Technical Report Summary for

Tshepong North, Free State Province, South Africa

Units of Measure and Abbreviations


Unit / Abbreviation			Description or Definition
°C			degrees Celsius
µm			Micrometres
2D			Two-dimensional
3D			Three-dimensional
AE			Abnormal expenditure
Ag			Silver
AngloGold Ashanti			AngloGold Ashanti Limited
ARM			African Rainbow Minerals Limited
ARMGold			ARM Gold Division
Au			Gold
AuBIS			Harmony electronic database
Ave.			Average
BLR			Black Reef
BMD			Below mine datum
Bn			Billion
c.			Approximately
CIP			Carbon-In-Pulp
CLR			Carbon Leader Reef
cm			Centimetre
cmg/t			Centimetre-grams per tonne
CODM			Chief Operating Decision-Maker
Company			Harmony Gold Mining Company Limited
COP			Code of Practice
CRG			Central Rand Group
CRM			Certified Reference Material
CV			Coefficient of Variation
DBH			Dewatering borehole
DMRE			Department of Mineral Resources and Energy
DWAFEC			Department of Water Affairs, Forestry and Environmental Conservation
DWS			Department of Water and Sanitation
EIA			Environmental Impact Assessment
EMPR			Environmental Management Programme
EMS			Environmental Management System
EMTS			Electric Monorail Transport System
ESG			Environmental Social and Governance
ETF			Exchange traded fund
FAG			Fully autogenous
FX			Foreign Exchange rate
g			Gram
g/t			Grams per metric tonne
GBH			Groundwater boreholes
GDARD			Gauteng Department of Agriculture and Rural Development
GHG			Greenhouse gas
GISTM			Global Industry Standard on Tailings Management
ha			Hectare
Harmony			Harmony Gold Mining Company Limited
HLS			Heavy liquid separation
HPE			Hydro-powered
kg			Kilogram

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa


Unit / Abbreviation			Description or Definition
km			Kilometre
km2			Square kilometre
kWh			Kilowatt-hour
LBMA			London Bullion Market Association
LIB			Long Inclined Borehole
LOM			Life of Mine
LOI			Loss on ignition
Ltd			Limited
m			Metre
M			Million
m3/hr			Cubic metres per hour
MCC			Mining Charter Compliance
MCF			Mine Call Factor
Moz			Million troy ounces
MPRDA			Mineral and Petroleum Resources Development Act, 28 of 2002
Mt			Million tonnes
Mtpa			Million tonnes per annum
Mtpm			Million tonnes per month
NEMA			National Environmental Management Act, 107 of 1998
No.			Number
NPV			Net present value
oz			Troy ounce
OTC			Over the counter
Phakisa			Phakisa Mine, also known as Tshepong South
Pty			Proprietary
QA/QC			Quality Assurance/Quality Control
QEMSCAN			Scanning electron microscope
QP			Qualified Person
ROM			Run-of-Mine
SACNASP			South African Council for Natural Scientific Professions
SAMREC			The South African Code for the Reporting of Exploration Results, Mineral Resources and Mineral Reserves
SD			Standard Deviation
SEC			Securities and Exchange Commission
SGM			Sequential Grid Mining
SLP			Social Labour Plan
t			Metric tonne
t/m3			Tonne per cubic metre
Target			Target Mine
TCFD			Task Force on Climate-Related Financial Disclosure
TMS			Trace mineral search
TRS			Technical Report Summary
TSF			Tailings Storage Facility
Tshepong			Tshepong Mine, also known as Tshepong North
USD			United States Dollars
USD/oz			United States Dollar per troy ounce
WRG			West Rand Group
WULA(s)			Water Use Licence Application(s)
XRD			X-ray diffraction
ZAR			South African Rand
ZAR/kg			South African Rand per kilogram

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa

Glossary of Terms


Term			Definition
Co-kriging			A method that is used to predict the value of the point at unobserved locations by sample points that are known to be spatially interconnected by adding other variables that have a correlation with the main variable or can also be used to predict 2 or more variables simultaneously.
Cut-off grade			Cut-off grade is the grade (i.e., the concentration of metal or mineral in rock) that determines the destination of the material during mining. For purposes of establishing “prospects of economic extraction,” the cut-off grade is the grade that distinguishes material deemed to have no economic value (it will not be mined in underground mining or if mined in surface mining, its destination will be the waste dump) from material deemed to have economic value (its ultimate destination during mining will be a processing facility). Other terms used in similar fashion as cut-off grade include net smelter return, pay limit, and break-even stripping ratio.
Dilution			Unmineralised rock that is by necessity, removed along with ore during the mining process that effectively lowers the overall grade of the ore.
Head grade			The average grade of ore fed into the mill.
Economically viable			Economically viable, when used in the context of Mineral Reserve determination, means that the qualified person has determined, using a discounted cash flow analysis, or has otherwise analytically determined, that extraction of the Mineral Reserve is economically viable under reasonable investment and market assumptions.
Indicated Mineral Resource			Indicated Mineral Resource is that part of a Mineral Resource for which quantity and grade or quality are estimated on the basis of adequate geological evidence and sampling. The level of geological certainty associated with an Indicated Mineral Resource is sufficient to allow a qualified person to apply modifying factors in sufficient detail to support mine planning and evaluation of the economic viability of the deposit. Because an Indicated Mineral Resource has a lower level of confidence than the level of confidence of a Measured Mineral Resource, an Indicated Mineral Resource may only be converted to a probable Mineral Reserve.
Inferred Mineral Resource			Inferred Mineral Resource is that part of a Mineral Resource for which quantity and grade or quality are estimated on the basis of limited geological evidence and sampling. The level of geological uncertainty associated with an Inferred Mineral Resource is too high to apply relevant technical and economic factors likely to influence the prospects of economic extraction in a manner useful for evaluation of economic viability. Because an Inferred Mineral Resource has the lowest level of geological confidence of all Mineral Resources, which prevents the application of the modifying factors in a manner useful for evaluation of economic viability, an Inferred Mineral Resource may not be considered when assessing the economic viability of a mining project and may not be converted to a Mineral Reserve.
Kriging			A method of interpolation based on Gaussian process governed by prior covariances. It uses a limited set of sampled data points to estimate the value of a variable over a continuous spatial field
Mine Call Factor			The ratio, expressed as a percentage, of the total quantity of recovered and unrecovered mineral product after processing with the amount estimated in the ore based on sampling.
Measured Mineral Resource			Measured Mineral Resource is that part of a Mineral Resource for which quantity and grade or quality are estimated on the basis of conclusive geological evidence and sampling. The level of geological certainty associated with a Measured Mineral Resource is sufficient to allow a qualified person to apply modifying factors, as defined in this section, in sufficient detail to support detailed mine planning and final evaluation of the economic viability of the deposit. Because a Measured Mineral Resource has a higher level of confidence than the level of confidence of either an Indicated Mineral Resource or an Inferred Mineral Resource, a Measured Mineral Resource may be converted to a Proven Mineral Reserve or to a Probable Mineral Reserve.
Mineral Reserve			Mineral Reserve is an estimate of tonnage and grade or quality of Indicated and Measured Mineral Resources that, in the opinion of the qualified person, can be the basis of an economically viable project. More specifically, it is the economically mineable part of a Measured or Indicated Mineral Resource, which includes diluting materials and allowances for losses that may occur when the material is mined or extracted.
Mineral Resource			Mineral Resource is a concentration or occurrence of material of economic interest in or on the Earth’s crust in such form, grade or quality, and quantity that there are reasonable prospects for economic extraction. A Mineral Resource is a reasonable estimate of mineralisation, taking into account relevant factors such as cut-off grade, likely mining dimensions, location or continuity, that, with the assumed and justifiable technical and economic conditions, is likely to, in whole or in part, become economically extractable. It is not merely an inventory of all mineralisation drilled or sampled.

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa


Term			Definition
Modifying Factors			Modifying factors are the factors that a qualified person must apply to Indicated and Measured Mineral Resources and then evaluate in order to establish the economic viability of Mineral Reserves. A qualified person must apply and evaluate modifying factors to convert Measured and Indicated Mineral Resources to Proven and Probable Mineral Reserves. These factors include but are not restricted to; mining; processing; metallurgical; infrastructure; economic; marketing; legal; environmental compliance; plans, negotiations, or agreements with local individuals or groups; and governmental factors. The number, type and specific characteristics of the modifying factors applied will necessarily be a function of and depend upon the mineral, mine, property, or project.
Pre-Feasibility Study			A pre-feasibility study (or preliminary feasibility study) is a comprehensive study of a range of options for the technical and economic viability of a mineral project that has advanced to a stage where a qualified person has determined (in the case of underground mining) a preferred mining method, or (in the case of surface mining) a pit configuration, and in all cases has determined an effective method of mineral processing and an effective plan to sell the product. (1) A pre-feasibility study includes a financial analysis based on reasonable assumptions, based on appropriate testing, about the modifying factors and the evaluation of any other relevant factors that are sufficient for a qualified person to determine if all or part of the Indicated and Measured Mineral Resources may be converted to Mineral Reserves at the time of reporting. The financial analysis must have the level of detail necessary to demonstrate, at the time of reporting, that extraction is economically viable. (2) A pre-feasibility study is less comprehensive and results in a lower confidence level than a feasibility study. A pre-feasibility study is more comprehensive and results in a higher confidence level than an initial assessment.


Probable Mineral Reserve			Probable Mineral Reserve is the economically mineable part of an Indicated and, in some cases, a Measured Mineral Resource.
Proven Mineral Reserve			Proven Mineral Reserve is the economically mineable part of a Measured Mineral Resource and can only result from conversion of a Measured Mineral Resource.
Qualified Person			A qualified person is: (1) A mineral industry professional with at least five years of relevant experience in the type of mineralisation and type of deposit under consideration and in the specific type of activity that person is undertaking on behalf of the registrant; and (2) An eligible member or licensee in good standing of a recognized professional organization at the time the technical report is prepared. For an organization to be a recognized professional organization, it must: (i) Be either: (A) An organization recognized within the mining industry as a reputable professional association; or (B) A board authorized by U.S. federal, state or foreign statute to regulate professionals in the mining, geoscience or related field; (ii) Admit eligible members primarily on the basis of their academic qualifications and experience; (iii) Establish and require compliance with professional standards of competence and ethics; (iv) Require or encourage continuing professional development; (v) Have and apply disciplinary powers, including the power to suspend or expel a member regardless of where the member practices or resides; and (vi) Provide a public list of members in good standing.










Tailings			Finely ground rock of low residual value from which valuable minerals have been extracted is discarded and stored in a designed dam facility.

Effective Date: 30 June 2023

xii

Technical Report Summary for

Tshepong North, Free State Province, South Africa

1Executive Summary

Section 229.601(b)(96) (1)

The Qualified Person(s) (“QP”) of Harmony Gold Mining Company Limited (“Harmony” or the “Company”) have prepared this Technical Report Summary (“TRS”) to disclose the Mineral Resource and Mineral Reserve estimates for the Company’s Tshepong North. The TRS has been prepared in accordance with the U.S. Securities and Exchange Commission (“SEC”) property disclosure regulations, S-K 1300, with an effective date as at 30 June 2023. No material changes have occurred between the effective date and the date of signature of this TRS.

Property Description

Tshepong North comprise the underground and surface assets, situated between the towns of Welkom and Odendaalsrus in the Free State Province of South Africa. The mine is a moderate to deep-level gold mine, operating at depths of between 1.6km and 2.4km below mine datum (“BMD”). The primary reef mined is the Basal Reef, with additional gold mineralisation being found in the B Reef and A Reef.

Mining at Tshepong North is carried out under the following mining right, covering both Tshepong North and Tshepong South:

•FS30/5/1/284MR, which is valid from 11 December 2007 to 10 December 2029 and covers an area of 10,798.74 hectares (“ha”).

The mining right is held in a joint venture between African Rainbow Minerals Limited (“ARM”) Gold Division (“ARMGold”) and Harmony.

All relevant underground mining and surface right permits, and any other permit related to the work conducted on the property have been obtained and are valid. There are no known legal proceedings (including violations or fines) against Harmony, which threaten its mineral rights, tenure, or operations.

Ownership

Tshepong North is wholly owned by Harmony, including the associated mineral rights. Harmony commenced acquiring the assets through the acquisition of AngloGold Ashanti Limited’s (“AngloGold Ashanti”) Free State operations in 2001, together with ARMGold. ARMGold was subsequently incorporated into Harmony in 2003, giving Harmony 100% ownership and control of Tshepong North.

Geology and Mineralisation

Tshepong North is situated in the Free State Goldfield, on the southwestern margin of the Witwatersrand Basin of South Africa, one of the most prominent gold provinces in the world. The major gold bearing conglomerate reefs are mostly confined to the Central Rand Group (“CRG”) of the Witwatersrand Supergroup.

The general orientation of the Witwatersrand Supergroup succession in this goldfield is interpreted as north-trending, within a syncline that is plunging to the north. The syncline has been divided by faults into the Odendaalsrus, Central Horst and Virginia sections. The Tshepong North mining right area is also affected by the Ophir and Dagbreek faults.

Tshepong North exploited primarily the Basal Reef, which occurs within the Harmony Formation of the Johannesburg Subgroup of the CRG.

Mineralisation also occurs within the stratigraphically higher A and B reefs of the Kimberley (formerly Aandenk) Formation, within the Turffontein subgroup of the CRG. However, only the B Reef can be economically extracted.

Mineralisation is associated with the presence of medium to coarse, clast-supported oligomictic pebble horizons. The presence of allogenic pyrite and detrital carbon is also common.

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa

Status of Exploration, Development and Operation

The Basal Reef at Tshepong North has been extensively explored continuously . For the past 15 years B reef has also drawn attention for its economical viability and eratic nature of mineralized depositional zones with the main focus on improving confidence in the geological model, as well as adding and upgrading Mineral Resources to replace the mining depletion. Geological data has been obtained through underground chip sampling in stope faces as well as on reef development raises and from underground geological mapping of stope faces, haulages, cross cuts and on reef development raises. Initial exploration included a historical geophysical seismic survey and surface diamond core drilling. This was followed up with, closer spaced underground data gathering exercises.

Mineral Resource Estimate

The Mineral Resources for the Basal Reef and B Reef (both Tshepong North and South Mines) were estimated by the Harmony QP (Andrew Louw) in Datamine™ Studio software. The QP created block models based on a verified electronic database containing surface drill hole data, as well as underground drilling, mapping, and sampling data obtained up until December 2022. Gold values were estimated using ordinary and simple macro kriging interpolation methods.

The Mineral Resources for Tshepong North were originally prepared, classified and reported according to the South African Code for the Reporting of Exploration Results, Mineral Resources and Mineral Reserves (“SAMREC, 2016”). For the purposes of this TRS, the Mineral Resources have been classified in accordance with § 229.1302(d)(1)(iii)(A) (Item 1302(d)(1)(iii)(A) of Regulation S-K) which is similar to the SAMREC 2016 classification, by the QP.

Table 1-1: Summary of Tshepong North Mineral Resources as at 30 June 2023 (Exclusive of Mineral Reserves) 1-8


METRIC
Mineral Resource Category	Tonnes (Mt)	Gold Grade (g/t)	Gold Content (kg)
Measured	11.920	12.42	147 989
Indicated	3.162	10.28	32 493
Total / Ave. Measured + Indicated	15.082	11.97	180 481
Inferred	9.744	10.20	99 356
IMPERIAL
Mineral Resource Category	Tons (Mt)	Gold Grade (oz/t)	Gold Content (Moz)
Measured	13.139	0.362	4.758
Indicated	3.485	0.300	1.045
Total / Ave. Measured + Indicated	16.625	0.349	5.803
Inferred	10.741	0.297	3.194

Notes:

1. Mineral Resources are reported with an effective date of 30 June 2023 were originally prepared, classified and reported according to SAMREC, 2016. For the purposes of this TRS, the Mineral Resources have been classified in accordance with § 229.1302(d)(1)(iii)(A) (Item 1302(d)(1)(iii)(A) of Regulation S-K). The Qualified Person responsible for the estimate is Mr A Louw, who is Ore Reserve Manager at Tshepong North, and a Harmony employee.

2. The Mineral Resource tonnes are reported as in-situ with reasonable prospects for economic extraction.

3. No modifying factors or dilution sources have been included to in-situ Reserve which was subtracted from the SAMREC Resource in order to obtain the S-K 1300 Resource.

4. The Mineral Resources are reported using a cut-off value of 700cmg/t determined at a 90% profit guidance, and a gold price of USD1,764/oz.,R4075/ton operating cost with a plant recovery factor of 94.96%

5. Tonnes are reported as rounded to three decimal places. Gold values are rounded to zero decimal places.

6. Mineral Resources are exclusive of Mineral Reserves. Mineral Resources are not Mineral Reserves and do not necessarily demonstrate economic viability.

7. Rounding as required by reporting guidelines may result in apparent summation differences.

8. The Mineral Resource estimate is for Harmony’s 100% interest.

Mineral Reserve Estimate

Mineral Reserves are derived from the Mineral Resources, a detailed business plan and the operational mine planning processes. Mine planning utilises and takes into consideration historical technical parameters achieved. In addition, Mineral Resource conversion to Mineral Reserves considers Modifying Factors, dilution, ore losses, minimum mining widths, planned mine call.

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa

Table 1-2: Summary of Tshepong North Mineral Reserves as at 30 June 2023 1-5


METRIC
Mineral Reserve Category	Tonnes (Mt)	Gold Grade (g/t)	Gold Content (kg)
Proved	2.997	4.79	14 341
Probable	0.766	5.73	4 390
Total (Proved + Probable)	3.763	4.98	18 731
IMPERIAL
Mineral Reserve Category	Tons (Mt)	Gold Grade (oz/t)	Gold Content (Moz)
Proved	3.303	0.140	0.461
Probable	0.845	0.167	0.141
Total (Proved + Probable)	4.148	0.145	0.602

Notes:

1. The Mineral Reserves were originally prepared, classified and reported according to SAMREC, 2016. For the purposes of this TRS, the Mineral Reserves have been classified in accordance with § 229.1302(d)(1)(iii)(A) (Item 1302(d)(1)(iii)(A) of Regulation S-K). The Qualified Person responsible for the estimate is Mr A Louw, who is Ore Reserve Manager at Tshepong North, and a Harmony employee.

2. Tonnes, grade, and gold content are declared as net delivered to the mills.

3. Figures are fully inclusive of all mining dilutions, gold losses and are reported as mill delivered tonnes and head grades. Metallurgical recovery factors have not been applied to the reserve figures.

4. Gold content has not taken metallurgical recovery factors into account.

5. Mineral Reserves are reported using a cut-off grade of 800cmg/t determined using a gold price of USD1,582/oz gold.

In the opinion of the QP, given that Tshepong North is an established operation, the modifying factors informing the Mineral Reserve estimates would at a minimum, satisfy the confidence levels of a

Pre-Feasibility Study.

The declared Mineral Reserves are depleted to generate Tshepong North cash flow. The economic analysis of the cash flows displays positive results and are deemed both technically and economically achievable.

Capital and Operating Cost Estimates

The capital cost estimates for Tshepong North is determined at a corporate level, using the business plan as the basis. The capital costs are associated with major equipment outside the main operating sections which is termed abnormal expenditure (“AE”), infrastructure development, as well as ongoing capital development (“OCD”). Costs associated with the Mining Charter Compliance (“MCC”), as per South Africa’s Social Labour Plan (“SLP”) requirements are also included in the capital estimates.

The capital costs are presented in Table 1-3 for the for Mineral Reserves.

The operating cost estimates for Tshepong North are categorised into direct and total costs. The operating cost estimates are shown in Table 1-4 for the for Mineral Reserves.

The capital and operating costs are reported in ZAR terms and on a real basis. The economic analysis, including the capital and operating costs are reported for the period comprising financial year (“FY24”)

July – June. Both, the capital and operating estimates are accounted for in the economic analysis of Tshepong North. The results of the economic analysis demonstrate a positive return for Mineral Reserves.

Permitting Requirements

The permits held by Tshepong North are presented in Table 1-5.

Tshepong North have the necessary valid permits, administered and managed by various departments, and do not require any additional permits to continue with their mining operations, except for the application which have been submitted to amend the Water Use Applications.

An application to renew and amend water use licence was submitted to the respective regulator. The approval for WULA is pending at the effective date of this TRS. Based on current industry norms, a realistic timeframe to obtain relevant authorisations is estimated between 12 and 18 months.

There is no material litigation (including violations or fines) against the Company as at the date of this report which threatens its mineral rights, tenure, or operations.

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa

Conclusions

The QP’s opinion is that the mine plan is achievable under the set of assumptions and parameters used in this TRS. Tshepong North show a positive cash flow for the Mineral Reserve.

Recommendations

The gold output can be optimised through improvement of quality of mining and this will result in achieving planned shaft call factor. This impact will be realised through our currently implemented Business Improvement programme that will look at driving quality of mining through measures such as in-stope water controls and better fragmentation during blasting to contain the gold.

Table 1-3: Summary of Capital Cost Estimate for Tshepong North


Capital Cost Element (ZAR'000s)			Mineral Reserves (FY2024 - FY2028)
AE			91 645
Shaft Projects			28 322
Major Projects			0

Total			119 967
OCD			809 252
Total (including OCD)			929 219

Table 1-4: Summary of Operating Cost Estimate for Tshepong North


Operating Cost Element (ZAR'000)			Mineral Reserves (FY2024 - FY2028)
Wages - Payroll 1			2 525 741
Wages - Payroll 2			3 915 018
Stores and Materials			2 124 777
Electric Power and Water			2 348 267
Outside Contractors			907 274
Other			370 838
Direct Costs			12 191 915
Refining charge allocation			38 135
Assay cost allocation			64 581
Hostel cost allocation			(80 123)
Treatment cost allocation			644 032
Rail transport allocation			34 708
Sampling Cost Allocation			567
Re-allocated costs			701 900
Mine Overheads Re-allocated			611 517
Total			13 505 332

Table 1-5: Status of Environmental Permits and Licences

Permit / Licence

Reference No.

Issued By

Date Granted

Validity

Environmental Management Programme

FS 30/5/1/2/3/2/1(84)EM

DMRE

16-Apr-10

LOM

Environmental Management Updated

FS 30/5/1/2/2/84MR

DWAFEC

Pending Approval Submitted in 2019

LOM

Water Permit 936B. Harmony. Free State Geduld Mines. Discharge of untreated effluents

B33/2/340/31

DWAFEC

02-Apr-81

LOM

Water Permit 870B. Harmony. Discharge of untreated effluents.

B33/2/340/25

DWAFEC

27-May-91

LOM

Water Permit 1214N. Free State Consolidated Gold Mine. Tshepong, Freddie’s and Phakisa shafts.

B33/2/340/12

DWAFEC

Not indicated.

LOM

Notes: DWAFEC - Department of Water Affairs, Forestry and Environmental Conservation, DWA - Department of Water Affairs.

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa

2Introduction

Section 229.601(b)(96) (2) (i-v)

This TRS on Tshepong North has been prepared for the registrant, Harmony. The TRS has been prepared in accordance with the U.S. SEC Disclosure by Registrants Engaged in Mining Operations (disclosure regulations S-K 1300). It has been prepared to meet the requirements of Section 229.601(b)96 - Technical Report Summary. The purpose of this TRS is to provide open and transparent disclosure of all material, exploration activities, Mineral Resource and Mineral Reserve information to enable the investor to understand Tshepong North, which forms part of Harmony’s activities.

This TRS has been prepared from the following sources of information:

•Harmony Operational Report 2023;

•Geological Model

•Valuation Model

•File 18 (Competency Report) Tshepong Mineral Resource and Reserve Statement FY2023;

•Technical Session Report

•Tshepong Gold Mine 2023 SAMREC Table 1;

•2023 Report to Shareholders; and

•Harmony Mineral Resources and Mineral Reserves Report at 30 June 2023 (“HAR-RR23”).

The TRS was prepared by QPs employed on a full-time basis by the registrant. The QPs qualifications, areas of responsibility and personal inspection of the property are summarised in Table 2-1.

Table 2-1: QP Qualification, Section Responsibilities and Personal Inspections

Qualified Person

Professional Organisation

Qualification

TRS Section Responsibility

Personal Insp.

Mr. A. Louw

SACNASP

BSc. Hons. (Geohydro)

All Sections (Tshepong)

Full Time

This TRS report is an update of the previously filed 30 June 2022 document with the SEC and has an effective date as at 30 June 2023. No material changes have occurred between the effective date and the date of signature.

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa

3Property Description and Location

Section 229.601(b)(96) (3) (i-vii)

Tshepong North is a mature, moderate to deep-level underground operation that uses conventional undercut mining, to depths of 2,400m BMD.

The mine is located in the Free State Province of South Africa, approximately 250km southwest of Johannesburg and 15km to the north of the town of Welkom (Figure 3-1). Tshepong North is situated at a latitude of 27°51’56.45”S and longitude of 26°42’45.15”E. Tshepong South (Phakisa) is situated adjacent to the south of Tshepong North, and is located at a latitude of 27°54’1.27”S and longitude of 26°43’30.05”E.

3.1Mineral Tenure

South African Mining Law is regulated by the MPRDA which is the predominant piece of legislation dealing with acquisitions or rights to conduct reconnaissance, prospecting and mining. There are several other pieces of legislation which deal with such ancillary issues such as royalties (the Mineral and Petroleum Resources Royalty Act, 2008), title registration (the Mining Titles Registration Act, 1967), and health and safety (the Mine Health and Safety Act, 1996).

The current mining right for Tshepong North encompasses an area of 10,798.74ha (Figure 3-2). Harmony holds several mining rights in the Free State goldfields which have been successfully converted and executed as new order mining rights, some of which are still to be registered at the Mineral and Petroleum Resources Titles Office (“MPRTO”). The mining right for Tshepong North is presented in Table 3-1.

Table 3-1: Summary of Mining Rights for Tshepong North

Licence Holder

Licence Type

Reference No.

Effective Date

Expiry Date

Area (ha)

ARMGold / Harmony JV

Mining Right

FS30/5/1/284MR

11-Dec-2007

10-Dec-2029

10 799

There are no known legal proceedings (including violations or fines) against the Company which threatens its mineral rights, tenure, or operations.

3.2Property Permitting Requirements

All relevant underground mining and surface permits, and any other permit related to the work conducted on the property have been obtained and are valid.

Harmony has access to all the properties it requires to conduct its current mining activities. The surface lease and surface right areas are sufficient in size and nature to accommodate the required surface infrastructure to facilitate current and planned mining and processing operations.

Harmony monitors complaints and litigation against the Company as part of its risk management systems, policies and procedures. There is no material litigation (including violations or fines) against the Company and the QP as at the date of this report which threatens its mineral rights, tenure or operations.

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa


Figure 3-1: Location of Tshepong North in the Free State Goldfield

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa


Figure 3-2: Mineral Tenure for Tshepong North

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa

4Accessibility, Climate, Local Resources, Infrastructure and Physiography

Section 229.601(b)(96) (4) (i-iv)

4.1Accessibility

Access to Tshepong North is accessible via the local R70 road between Welkom and Odendaalsrus

(Figure 3-1). The area has well-established rail links and an airfield within close proximity.

Entry into the mining area is restricted by security fencing, security guards, booms and lockable gates at the main entrance. In addition, a communication system and access control system monitors personnel entering and leaving the mine property.

4.2Physiography and Climate

The mine lease area is flat with an average height of around 1,344m above mean sea level (“masl”). There are no prominent topographical landmarks in the area. The topography has been affected by the presence of slimes dams, waste rock dumps and solid waste disposal sites.

Tshepong North is situated in the Free State Goldfield, a semi-arid region with an annual rainfall of between 400mm and 600mm. Local thunderstorms and showers are responsible for most of the precipitation during summer, from October to March, peaking in January. Hail is sometimes associated with thunderstorms.

The seasonal fluctuations in mean temperatures between the warmest and the coldest months vary between an average minimum of 7.7°C in winter to a maximum of 37°C in summer. The month of July is generally the coldest month with the hottest month typically being February.

Tshepong North is not restricted by climatic or seasonal variability.

4.3Local Resources and Infrastructure

The surrounding areas of Welkom and Odendaalsrus are well developed in terms of access and mining-related infrastructure, which supports the numerous operational gold mines in the area. The regional infrastructure includes national and provincial paved road networks, power transmission and distribution networks, water supply networks and communication infrastructure.

The local community is in situated in close proximity of the mine which enable the work force with transport to and from the mine. Most suppliers are locally or on site to ensure continuous operations as planned with out operational disruptions.

Tshepong North has a twin shaft system with ore and waste being hoisted to surface through the main vertical shaft (Figure 3-2).

Tshepong North ore is transported, by rail, from their respective shafts to the Harmony One Plant in Welkom for processing (Figure 3-2).

Operations are powered by electricity from Eskom Holdings State Owned Company (“SOC”) Limited.

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa

5History

Section 229.601(b)(96) (5) (i-ii)

5.1Historical Ownership and Development

The Feasibility Study for the initial development of Tshepong North was concluded in 1984. Work to establish the site started in September 1984 and, by 1986, shaft sinking was underway. Sinking and equipping of the shaft were completed in 1991, with the mine being commissioned in November 1991.

The historical ownership and associated activities related to Tshepong North are summarised in Table 5-1.

Table 5-1: Summary of Historical Ownership Changes and Activities of Tshepong North


Year			Asset History Highlights
Tshepong
1984			Feasibility Study for Tshepong development section concluded. Site establishment started.
1986			Shaft sinking began.
1991			Tshepong project was commissioned.
2001			AngloGold announced sale of its assets in the Free State to African Rainbow Metals and Harmony Gold Mining. African Rainbow and Harmony would hold equal joint venture interests, effective January 1, 2002.
2003			Harmony Gold and ARMGold merged.
2004			Tshepong Sub 55 Decline Project (an extension at depth of the mine from the current shaft bottom to a depth of some 2,200m) was on schedule for completion in July 2006.
2005			Harmony completed 62% of the decline, including 1,500m of rail construction and 700m of the conveyor system.
2006			The mine operated at full capacity and the Tshepong Decline Project had been completed.
2007			Conversion of Harmony's old order mining rights into new order mining rights in terms of the MPRDA, including that for the Tshepong North operation.
2008			The Tshepong Sub 66 decline project in a build-up phase, and the Sub 71 Decline project was under development.
2017			Tshepong and Phakisa merged into Tshepong Operations and Mineral Resource and Mineral Reserve reporting was combined
2023			Tshepong Operations Mineral Resource and Mineral Reserve Reporting was separated whereby the individual operations were reported under Tshepong North and Tshepong South

5.2Historical Exploration

Strong linear B-Reef value trends running from Tshepong North Mine into Tshepong South Mine were identified where an expected value of the area averaged 1291cmg/t. A high level capital exploration drilling project for B-Reef was approved in August 2016 for Tshepong South mine. Eight drill holes were planned, totaling of 5,180m at a total cost of ZAR5.5m. The exploration drilling programme was successfully concluded in October 2020, with the planned eight holes drilled in the target area which confirmed the extension of the Tshepong North payshoot.

5.3Previous Mineral Resource and Mineral Reserve Estimates

The previous in-situ Mineral Resource estimates for Tshepong North were declared as at 30 June 2022 by Harmony, according to the 1300 SK, 2016. The previous Mineral Resource estimates, exclusive of Mineral Reserves, are summarised in Table 5-2 for Tshepong North. These have been superseded by the current estimate prepared by Harmony in Section 11 of this TRS.

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa

Table 5-2: Summary of the Previous Tshepong North Mineral Resources as at 30 June 2022 (Exclusive of Mineral Reserves)


METRIC
Mineral Resource Category	Tonnes (Mt)	Gold Grade (g/t)	Gold Content (kg)
Measured	12.484	12.13	151 437
Indicated	3.977	10.20	40 575
Total / Ave. Measured + Indicated	16.462	11.66	192 012
Inferred	9.434	10.18	96 037
IMPERIAL
Mineral Resource Category	Tons (Mt)	Gold Grade (oz/t)	Gold Content (Moz)
Measured	13.762	0.35	4.869
Indicated	4.384	0.30	1.305
Total / Ave. Measured + Indicated	18.146	0.34	6.173
Inferred	10.399	0.30	3.088

The previous Mineral Reserve estimate for Tshepong North was declared by Harmony as at 30 June 2022 in accordance with SAMREC, 2016. Modifying Factors were applied to the in situ Mineral Resources to arrive at the Mineral Reserve estimate. The Mineral Reserve estimate represents the ore delivered to the mill. The recovered gold content considers the plant recovery factor. Dilution and modifying factors are based on historic performance.

The previous Mineral Reserve estimate is summarized in Table 5-3. These have been superseded by the current estimate prepared by Harmony as detailed in this TRS.

Table 5-3: Summary of the Previous Tshepong North Mineral Reserves as at 30 June 2022


METRIC
Mineral Reserve Category	Tonnes (Mt)	Gold Grade (g/t)	Gold Content (kg)
Proven	4.157	5.15	21 419
Probable	0.336	7.63	2 565
Total / Ave. Proven + Probable	4.493	5.34	23 985
IMPERIAL
Mineral Reserve Category	Tons (Mt)	Gold Grade (oz/t)	Gold Content (Moz)
Proven	4.583	0.150	0.689
Probable	0.371	0.223	0.082
Total / Ave. Proven + Probable	4.953	0.156	0.771

5.4Past Production

The annual tonnage, grade and gold production for Tshepong North is presented in Figure 5-1 and Figure 5-2.

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa


Figure 5-1: Graph of Past Financial Production Year (July to June) – Tonnes and Grade


Figure 5-2: Graph of Past Metal Production

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa

6Geological Setting, Mineralisation and Deposit

Section 229.601(b)(96) (6) (i-iii)

6.1Regional Geology

Tshepong North is located on the southwestern margin of the Archean Witwatersrand Basin, one of the prominent gold provinces in the world. The Witwatersrand Basin is an approximately 7,000m thick terrigenous sequence comprising mainly arenaceous and argillaceous, together with minor rudaceous, lithologies deposited in a fluvio-deltaic environment in the centre of the Archaean Kaapvaal Craton of South Africa (Robb and Meyer, 1995). The regional geology of the Witwatersrand Basin is shown in Figure 6-1.

The Witwatersrand Basin hosts the Witwatersrand Supergroup, which either conformably or unconformably overlies the metamorphosed volcanic and minor clastic sediments of the Dominion Group (Tucker et al., 2016). The Dominion Group overlies the older granite-greenstone basement.

The majority of the Witwatersrand Supergroup is capped by the volcano-sedimentary sequence of the Ventersdorp Supergroup through an angular unconformity. The Ventersdorp Supergroup is in turn overlain by the dolomitic and quarzitic sequence of the Transvaal Supergroup, and sediments of the Karoo Supergroup (Tucker et al., 2016). Several suites of dykes and sills cut across the Archaean basement and the Witwatersrand, Ventersdorp, Transvaal and Karoo supergroups, and form important geological time-markers.

The Witwatersrand Supergroup is sub-divided into the basal West Rand Group (“WRG”) and overlying CRG (Robb and Robb, 1998). The WRG extends over an area of 43,000km2 and is up to 5,150m thick. It is sub-divided in three subgroups, namely, from bottom upwards, the Hospital Hill Subgroup; Government Subgroup and Jeppestown Subgroup. The stratigraphic succession of the WRG mainly consists of shale sediments, with occasional units of banded iron formation and conglomerate.

The CRG is up to 2,880m thick and covers an area of up to 9,750km2, with a basal extent of c.290km x 150km. It is sub-divided into the lower Johannesburg Subgroup and upper Turffontein Subgroup as shown in Figure 6-2. These subgroups are separated by the Booysens Shale Formation. The stratigraphic succession of the CRG comprises coarse-grained fluvio-deltaic sedimentary rocks.

The major gold bearing conglomerates are mostly confined to the CRG, and these conglomerate horizons are known as reefs. The most important reefs within the CRG are at six stratigraphic positions, three within the Johannesburg Sub-group and three within the Turffontein Sub-group. The reefs are mined in seven major goldfields, and a few smaller occurrences, which extend for over 400km in what has been called “The Golden Arc”. This arc is centred on the prominent Vredefort Dome, as shown in Figure 6-1, which is thought to be a major meteorite impact site in the centre of the Witwatersrand Basin (Therriault et al., 1997). The goldfields, as shown in Figure 6-1, include: East Rand, South Rand, Central Rand, West Rand, West Wits, Klerksdorp, Free State (Welkom), and Evander.

6.2Local Geology

Tshepong North is located within the Free State Goldfield (Figure 6-1). The stratigraphic column of the Free State Goldfield is presented in Figure 6-2. The Johannesburg Subgroup comprises the Virginia, St Helena, Welkom, Harmony and Dagbreek formations.

The Free State Goldfield forms a triangle between the towns of Allanridge, Welkom and Virginia. The area is host to several gold mines, all of which produce gold from auriferous bearing reefs situated within sediments of the Central Rand Group of the Witwatersrand Sequence (Figure 6-2). Most of the presently exploitable reefs are situated within five stratigraphically separate placers including the Basal/Steyn, Saaiplaas Leader, B, Kimberley and Eldorado, with the majority of tonnage derived from the Basal/ Steyn and Saaiplaas Leader.

The Witwatersrand and overlying Ventersdorp lavas were deposited in a basin with significant and continual down warping to accommodate the sediments and lavas. During Platburg times, the basin underwent a significant rifting and tilting event, resulting in the region being split by significant faults. These faults are generally westerly dipping, with downthrows to the west, and strata dipping generally to the east.

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Figure 6-1: Regional Geology of the Witwatersrand Basin

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Figure 6-2: Simplified stratigraphy of the Free State Goldfield

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The general orientation of the Witwatersrand Supergroup succession in the Free State Goldfield is interpreted as north-trending within a syncline that is plunging to the north (Figure 6-3). The syncline is cut by two major faults resulting in the formation of three major fault bounded blocks:

•Odendaalsrus Section to the west of the De Bron fault;

•the Central Horst between the De Bron and Homestead faults; and

•the Virginia Section to the east of the Homestead Fault.

The Central Horst was uplifted, and the Central Rand Group rocks eroded away prior to deposition of the Ventersdorp Supergroup and therefore comprises West Rand quartzites. The western margin of the Tshepong North Lease is also marked by structures including the Ophir Fault that is bisected into eastern and western portions by a second, the Dagbreek Fault.

A cross section through the fault bounded blocks is presented in Figure 6-4.

6.3Property Geology

The principal gold-bearing orebody is the stratiform and strata-bound Basal Reef (or Basal Reef Zone (“BRZ”)) (Figure 6-2). A secondary reef, the B Reef, lying between 150m and 170m stratigraphically above the Basal Reef, contributes less than 40% to the mining production at Tshepong Mine.

6.3.1Basal Reef Lithology

The Basal Reef comprises a thin conglomerate, overlain by clean ‘placer’ quartzites. The Basal Reef is underlain by a thick series of siliceous and argillaceous quartzites comprising the Welkom Formation and overlain by shales and quartzites of the Harmony Formation, both of the Johannesburg Sub-group of the CRG. The Basal Reef sits unconformably on the Welkom Formation (Figure 6-2).

The Upper Cycle Black Chert facies Basal Reef prevails in the south of the Tshepong North area and consists of a slightly polymictic (yellow shale specks present), matrix-supported medium-pebble conglomerate with a more gradational contact absent of carbon, where mineralisation is associated with fine disseminated and buck-shot pyrite. The conglomerate is slightly thicker compared to the Lower Cycle, but is also overlain by barren reef quartzite, the entire package being characteristically up to only 40cm thick. The lower Khaki Shale is up to 1m thicker.

6.3.2B Reef Lithology

The B Reef at Tshepong North occurs approximately 150m stratigraphically (or approximately two production working levels) above the Basal Reef. Consequently, the B Reef is not normally intersected in either Basal Reef development or routine diamond drilling.

The lowest unit is a basal lag (Zone A), overlying Doornkop Quartzite Formation. Where this unit is developed (or preserved), it may be highly mineralised oligomictic or polymictic conglomerate, with visible gold, buckshot pyrite and carbon mineralisation. This unit may carry gold values of many thousands of cmg/t and represents a potentially rewarding exploration target.

The unit overlying the Zone A may be either Zone B, which comprises a mildly erosive pebbly quartzite formation, and/or the stratigraphically younger Zone C, which is a polymictic conglomerate with low values and is erosional into the underlying A and B zones.

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Figure 6-3: Structural Geology of the Free State Goldfields

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Figure 6-4: Tshepong North Cross Section

Source: Modified after Tucker et al. (2016)

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The B Reef at Tshepong South is located about 170m stratigraphically above the Basal Reef and varies in thickness from 30cm to 170cm. The conglomerate varies in character depending on the facies, with B1 being a small to medium pebble conglomerate and usually no more than 30cm thick with abundant carbon. The B2 facies is a small pebble lag in an argillaceous quartzite, with little to no mineralisation. B3 facies is a 20 to 150cm thick conglomerate, mature, well packed, with pebble sizes varying from small to cobble size, very polymictic, normally with abundant pyrite and some carbon. This is the most common facies.

6.3.3Structure

At Tshepong North, the Dagbreek Fault that strikes north-south bisects the mine into western and eastern domains. The shaft infrastructure itself is situated largely within the zone of fault loss associated with the Dagbreek Fault (Figure 6-3 and Figure 6-4).

The fault has a variable down throw to the west of approximately 350m, with no significant lateral displacement. It is interpreted as an early compressional structure that has experienced later Platberg age relaxation and subsequent extension. Reef in the eastern domain dips to the east at an average of 23° and extends from 55 Level (1,674m depth) to 66 Level (2,010m depth), which is the lowest working level of the Main shaft. Tshepong North has completed the Sub 71 Decline Capital Project, which extends access down dip to 75 Level (2,286m depth), the lowest planned working level of the Sub 71 Decline Project.

Relative to the eastern domain, the western domain at Tshepong North is more structurally deformed. This is prevalent to the north where major block rotation has occurred resulting in the reef dipping to the west. The structural complexity of this western domain necessitates an intensive, ongoing drilling programme to locate fault bounded reef blocks.

A second structural family of faults and dykes occurs on a NW-SE trend and are thought to be conjugate to and thus of a similar age to the Dagbreek Fault system, but this direction of faults tends to be associated with lateral shifts.

Many faults shown signs of lateral displacement, but the amount of this displacement is often difficult to determine. These faults are typically oriented between N-S and NNW-SSE. Maximum displacement identified thus far is approximately 200m on the Thelma Fault.

At Tshepong South, there are several major faults and dykes present interpreted from surface drill holes and intersected in the development and stoping. Among these are the Enrico, Zero, Zindaba, Eland and Savannah Dykes, as well as the Southern and Phakisa Faults. The easterly limit of the ore body is not clearly defined but appears to cut off at approximately 3,000m below surface on a major component of the north-south striking Arrarat Fault.

Two principal age-based divisions in Tshepong South’s intrusive structures have been identified, namely; Ventersdorp and post-Ventersdorp eras. Various subdivisions within each of these two categories have also been observed.

Yellow porphyry, acicular and quartz diorite dykes are found in the Ventersdorp suite of intrusives, while Karoo dolerites and lamprophyres occur in the post-Ventersdorp suite of intrusives. These intrusives tend to utilise any plane of weakness in their passage. It is therefore not unusual to find an intrusive infill along the various fault planes and other faults within the mine area. Accompanying gouge material, showing slicken-siding along the contacts of the intrusions, indicates that movement has taken place after these rocks were intruded.

6.4Mineralisation

The gold mineralisation in the Witwatersrand deposits is believed to have followed an episode of deep burial, fracturing and alteration. The mineralisation model is that Archean gold bearing hydrothermal fluid was introduced into the conglomerates and circulated throughout in hydrothermal cells. The fluids precipitated gold and other elements through reactions that took place at elevated temperatures along the reef horizons, which was the more favourable fluid conduit.

The generic mineralisation model for Tshepong North Basal Reef is based on structurally controlled fluid flow within a conglomerate hosted lithology. Fluid flow is dependent on the permeability of the host rock mass

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during mineralisation. Fluid flow, permeability and subsequent gold mineralisation are believed to be controlled by four key factors, including:

•Stratigraphy;

•the presence or absence of mineralisation age thrust faulting;

•sedimentology; and

•precipitation agent

It is the QP's view, the sedimentological parameters are more influential and predictive for gold distribution on a regional scale.

6.4.1Basal Reef

Within the Lower Cycle Black Chert facies, mineralisation is characterised by a fine disseminated interstitial pyrite, together with a carbon contact. Mineralisation is associated with the carbon contact and conglomerate, although some concentration is also found just below the upper reef contact. At the top of the reef is a granular textured often gritty quartzite with fine pyrite stringers about 10cm thick.

In the Upper Cycle Black Chert Facies, mineralisation is associated with the carbon contact and conglomerate, although some concentration is also found just below the upper reef contact. It does not have such a well-developed carbon contact as the Lower Cycle facies and is often of lower grade.

6.4.2B Reef

The B1 facies has abundant carbon and gold as associated with the carbon. The B2 facies has little to no gold mineralisation, while the B3 facies normally has abundant pyrite and some carbon. Free gold is found in association with the flyspeck carbon.

6.4.3Alteration

Alteration is evident in the Basal Reef and B Reef at Tshepong North and is a result of the hydrothermal fluids that infiltrated the reef and have overprinted on the original mineral assemblage. The reefs contain authigenic sulphides such as pyrite, and other minerals associated with alteration such as chlorite. Gold associations with these mineral assemblages indicate a strong correlation of gold mobilisation and redistribution at the time of the hydrothermal fluid influx.

While alteration is an important part of the mineralisation, alteration is not used for the identification, modelling or mining of the reefs.

6.5Deposit Type

Tshepong North deposit is classed a meta-sedimentary gold deposit. Folding and basin edge faulting have been important controls for sediment deposition and gold distribution patterns within the Witwatersrand Basin and fold trends have been employed in the economic evaluation of various reef horizons.

6.6Commentary on Geological Setting, Mineralisation and Deposit

The regional geological setting, local and property geology, mineralisation and deposit-type for Tshepong North is well established, through many decades of exploration and mining. Reliable geological models, maps and cross sections are available that support the interpretations and inform the Mineral Resource estimates.

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7Exploration

Section 229.601(b)(96) (7) (i-vi)

Geological data has been obtained through initial surface drilling, followed by underground drilling, mapping and channel (chip) sampling.

Exploration from underground platforms is currently continuing for Tshepong North sub-75 development, to improve geological confidence.

Tshepong North and South operations are continuously undergoing B reef exploration drilling to identify any potential continuation of the current pay shoots connecting these mines. Footwall development began at the Tshepong South Mine during FY22 and will be used as a drilling platform to confirm and delineate the anticipated B Reef channel.

7.1Geophysical Surveys

Initial exploration included a historical geophysical seismic survey to obtain information of subsurface rock formations and geological structures using shock wave reflections and surface diamond core drilling.

7.2Topographic Surveys

As an underground operation, topographic surveys are not material to the Mineral Resource estimates.

7.3Underground Mapping

Face and reef development mapping is undertaken by a team comprising a Sampler or Geologist, and an assistant. Face tapes are setup along gullies and the stope face and secured with reference to the latest survey pegs installed in the workplaces. Reef position and other lithological and stratigraphic information is collected and measured relative to the reference tapes. The information is captured in a notebook.

Once at surface, the person responsible transfers the information from the notebook into CADSMineTM, where a mapping report is produced for each mapped workplace. The mapping reports depict the geological information graphically relative to the survey measurement points. Data from the mapping is also incorporated into the geological models.

Approximately 80-90% of all workplaces are inspected by member of the Geosciences team monthly to ensure that suitable mapping information coverage is achieved.

7.4Channel Sampling Methods and Sample Quality

Channel sampling of underground panels are carried out on monthly basis. Sampling is conducted perpendicular to the channel contact across the exposed channels. The section lines demarcating the width of the sample are drawn parallel to the reef waste contact while those demarcating the length of the sample are drawn at right angles to the reef waste contact and are marked 10cm apart. The samples are chipped out between these section lines.

Sampling of the Basal Reef stoping channels are undertaken at the advancing face on a grid spacing of 5m x 5m The sampling process is audited monthly and annually by the Geoscience Manager. Development sampling is on 4.0m intervals for Basal reef and for B reef reef at 2.0m intervals. The results are captured into the information system and plotted on a development sampling sheet.

The location of samples collected from the Basal and B Reef, to date, are shown in Figure 7-1 and Figure 7-2.

Tshepong North samples on a 5m x 5m sample grid for Basal reef and 3m x 3m grid for B reef which results in approximate 5800 underground chip samples monthly.

7.5Surface Drilling Campaigns, Procedures, Sampling, Recoveries and Results

Most surface drill holes used in the estimation of the current Mineral Resources were drilled by AngloGold Ashanti, or its forebearers, before Harmony acquired Tshepong North.

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Figure 7-1: Location of Channel Samples Collected from the Basal Reef

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Figure 7-2: Location of Channel Samples Collected from the B Reef

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7.5.1Drilling Methods

The surface diamond core drilling has been undertaken using a thin-walled core barrel (AXT size core barrel) that delivers 35.51mm core. A single mother hole is drilled, typically with deflection holes drilled from it.

The drill grid spacing of the surface drill hole intersections is up to 100m and is often required to be complemented by underground drill hole intersections. The accuracy of the surface drilling intersection positions from drill holes that are from 2,000m to 3,000m in depth is the major limiting factor of achieving the planned grid. Long surface drill holes often deflect and controlling direction over that depth has always been challenging in the South African gold mining context.

7.5.2Collar and Downhole Surveys

The drill holes are surveyed to confirm both collar position and trajectory. Drill hole collar and downhole surveys are conducted on all surface drill holes.

Surface drill hole collars are surveyed by internal Land Survey Department. Underground drill hole collars are checked against layouts issued to diamond drilling.

Downhole surveying is conducted using Electronic Multishot System and non-magnetic north seeking Gyro tools as supplied by a certified and specialised downhole survey company, Digital Surveying (Pty) Limited. The instrument is a magnetic based tool and as such all readings are relevant to magnetic north.

7.5.3Logging Procedures

Upon arrival at the core yard located on-site, drill core is marked at every meter interval. The core is then orientated so that the low point of bedding is coincident with the edge of the angle iron. The cut line is defined by the low point of the bedding at the base of the reef zone, when viewed as per convention, from left to right in the direction of increasing depth, is drawn parallel to the core. The core is then rotated through 90° and a yellow line was then drawn parallel to the core, to define the retention half core.

All drill cores are photographed prior to logging and sampling. The geologist conducts the core logging.

Drill core logging is quantitative and qualitative. The following information is recorded:

•lithology;

•packing density;

•roundness;

•sorting;

•contact type, grain/pebble size;

•sediment maturity; and

•mineralisation; and alteration.

The geologist responsible for logging the core stores the original paper record. Core logging is also stored electronically using both DeswikTM and DatamineTM software. Internal peer reviewing is undertaken on the interpretation of the stratigraphy and spatial correlation of drill holes.

Observations are captured on the diamond drilling database by geologists. The logs are checked by the Senior Geologist prior to sampling. Logging procedures are conducted as per the Harmony company standards, which are used on all underground mines and are best practice and have been in place since 2001.

7.5.4Drilling Results

The location of the surface drill holes intersecting the Basal and B reefs are presented in Figure 7-3 and Figure 7-4. There are no recent surface drilling results (Table 7-1), all drilling dates back to previous project owners and is pre 2017. The results have, however, been included into the geological modelling and Mineral Resource estimation process. These drill holes were drilled to a depth of 2,373m below the surface.

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Figure 7-3: Location of Surface and Underground Drill Holes on the Basal Reef

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Figure 7-4: Location of Surface and Underground Drill Holes on the B Reef

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Table 7-1: Summary of Surface and Underground Drilling for Tshepong North


Year	Company	No. Drill Holes	Surface (m)	Underground (m)
2016	Harmony	154	—	18 221
2017	Harmony	155	—	18 358
2018	Harmony	150	—	17 794
2019	Harmony	141	—	16 745
2020	Harmony	149	—	17 656
2021	Harmony	158	—	18 669
2022	Harmony	198	—	21 978
2023	Harmony	230	—	12 633
Total		1 335	—	142 054

7.5.5Core Recovery

Upon delivery to the core yard, and prior to logging and sampling, the drill core is checked to ensure 100% core recovery. Core recovery is determined by dividing the measured length of the recovered core by the total length of the core run.

An intersection is complete and representative if core recovery is greater than 99%. Drill holes with poor recovery are not sampled. Extra caution is taken during the drilling process to ensure maximum core recovery on reef intersections, to prevent sample bias.

Reef intersection “acceptability” is categorised as per the criteria summarised in Table 7-2 and is determined by geologists based on, amongst others, drill core condition and faulting. The acceptability is verified for each reef intersection before the assay results are used for Mineral Resource estimation.

Table 7-2: Drill hole Acceptance Criteria


Category			Comment
Acceptable			100% core recovery in the reef zone, or very minor loss due to reef chipping. No evidence of faulting within the reef horizon or at either contact with hanging wall or footwall lithologies.
Minimum value			Light to moderate disking of core in the core barrel due to drilling and/or ground conditions. Visual observations indicate that the conglomerate portion of the reef is usually more prone to disking, resulting in possible gold loss.
Faulted minimum value			If the fault loss is considered to be minor, this term may be used if the geologist is certain that only low-value internal quartzite is missing from the intersection.
Not acceptable			Heavy disking of core which may indicate core loss, partial known core loss due to grinding. Also faulting of any description within the reef zone.

7.5.6Sample Length and True Thickness

Mineralisation of the reefs is perpendicular to or at an angle to the drill holes. As such, all drill hole reef intersection widths are corrected to true thickness for gold value calculation.

7.6Underground Drilling Campaigns, Procedures and Sampling

Underground exploration drilling has been ongoing throughout the operational life of Tshepong North as the mine deepens. Most of the underground drill holes used in the estimation of the current Mineral Resources were drilled by AngloGold Ashanti before Harmony acquired the mine.

7.6.1Drilling Methods

Underground diamond core drilling is conducted using hydraulic driven and pneumatic drill rigs, which typically delivers an AXT size core (35.51mm). These are short drill holes rarely exceeding 200m in length.

Fans of drill holes are drilled from diamond drilling bays, which are developed at 50m intervals along footwall developments ends (X/Cs) and 100m intervals along haulages and RAWS. The drilling fans consist of up to ten

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individual drill holes at inclinations ranging from -15° to +30° of vertical, or as dictated by local geological structures.

7.6.2Collar and Downhole Surveys

The drill holes used for reef delineation at Tshepong North are surveyed to confirm both collar position and trajectory. Drill hole collar and downhole surveys are conducted on long inclined borehole (“LIBs”) or long vertical boreholes (“LVBs”), as well as on most of the groundwater boreholes (“GBH”) and dewatering boreholes (“DBH”) drilled on the mine.

Surveying of exploration drill holes at Tshepong North is outsourced to Digital Surveying (Pty) Limited. All underground drill hole surveys are conducted using an Electronic Multishot Survey instrument. Downhole surveys are conducted on all LIB/LVB drill holes for verification purposes, and the results are submitted together with the primary survey data used to determine the drill hole trajectories and are checked for quality and then captured on Microsoft ExcelTM and transferred to DatamineTM database.

All records received from the survey company are checked for quality and then captured and stored in the electronic databases.

7.6.3Logging Procedures

All drill cores are photographed prior to logging and sampling. The geologist conducts the core logging.

Drill core logging is quantitative and qualitative. The following information is recorded:

•lithology;

•packing density;

•roundness;

•sorting;

•contact type, grain/pebble size;

•sediment maturity; and

•mineralisation; and alteration.

7.6.4Drilling Results

The location of the underground drill holes intersecting the Basal and B reefs are presented in Figure 7-3 and Figure 7-4.

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With over 182,862 Basal Reef and B Reef samples having been taken since 2003, the results indicated various geological information regarding facies, depositional environment and grades which is useful in identifying and delineating areas of economic interest. The results have, however, been included into the geological modelling and Mineral Resource estimation process.

A total of 230 underground drill holes were drilled in 2023. The Basal Reef and B Reef underground drilling results for Tshepong North for 2022 are summarised in Table 7-3 and Table 7-4.

7.6.5Core Recovery

An intersection is complete and representative if core recovery is greater than 99%. Drillholes with poor recovery are not sampled. Extra caution is taken during the drilling process to ensure maximum core recovery on reef intersections, to prevent sample bias.

7.6.6Sample Length and True Thickness

Mineralisation of the reefs is perpendicular to or at an angle to the drill holes. As such, all drill hole reef intersection widths are corrected to true thickness for gold value calculation.

7.7Hydrogeology

Harmony has a surface and groundwater monitoring program, managed regionally by the central environmental department to monitor the impacts of our operations on the local water resources.

Water sampling is done as per approved water sampling program for surface and groundwater, that specify type, frequency and analysis of the sampling required, i.e. surface water sample, frequency is monthly and parameters analyzed Ph, TDS, SO4, U, etc. The sampling program is aligned with the requirements of the pending Water Use License Applications submitted to DWS.

Water Quality samples is collected by external consultant (Aquatico), as per the sampling program, that follow a strict sampling procedure defining the sampling protocol and quality controls required when taking a water quality sample. Attached a copy of the sampling procedure. The water analysis is done at a external SANAS accredited laboratory according to SANAS approved procedure. All water quality data is emailed in pdf format analysis certificate and captured on a water quality database.

Water quality data is compared against different public water quality standards to and exceedances investigated. The water quality results is also communicated to DWS on 6 monthly basis.

Harmony have a good understanding of the local geology and geohydrology through numerous geohydrological and mass transport models done over the years.

7.8Geotechnical Data

Geological exploration drilling is not typically used to gather geotechnical data – these data are gathered independently by the Geotechnical Engineer. Geotechnical issues related to underground workings are discussed in more detail in Section 13.3.

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Table 7-3: Summary of Recent Tshepong North Underground Drill Holes Intersecting the Basal Reef


Year	Drill Hole ID	Gold Value (cmg/t)	Ave. Channel Width (cm)	Year	Drill Hole ID	Gold Value (cmg/t)	Ave. Channel Width (cm)
2023	GBH 8730	194	103	2023	GBH 8901	470	9
2023	GBH 8733	471	22	2023	GBH 8893	354	24
2023	GBH 8734	293	21	2023	GBH 8892	684	125
2023	GBH 8755	176	23	2023	GBH 8891	507	39
2023	GBH 8756	323	22	2023	GBH 8887	569	18
2023	GBH 8757	119	60	2023	GBH 8871A	378	13
2023	GBH 8766	49	18	2023	GBH 8864	277	16
2023	GBH 8768	668	20	2023	GBH 8851	788	10
2023	GBH 8771	649	20	2023	GBH 8806	1 073	18
2023	GBH 8775	216	17	2023	GBH 8907	1 238	10
2023	GBH 8777	56	19	2023	GBH 8898	476	17
2023	GBH 8789	261	18	2023	GBH 8895	1 931	18
2023	GBH 8818	357	24	2023	GBH 8888	87	25
2023	GBH 8748	480	16	2023	GBH 8843	242	16
2023	GBH 8628A	1 070	15	2023	GBH 8837	809	17
2023	PBH 29	324	4	2023	GBH 8836	766	18
2023	PBH 28	1 121	12	2023	GBH 8835	815	35
2023	PBH 27	5 814	24	2023	GBH 8600	1 382	21
2023	PBH 26	370	22	2023	GBH 8762	440	15
2023	PBH 25	4 409	18	2023	GBH 8657	429	20
2023	PBH 24	78	17	2023	GBH 8658	332	18
2023	PBH 23	1 029	32	2023	GBH 8668	71	17
2023	PBH 22	298	21	2023	GBH 8614	610	11
2023	PBH 21	501	45	2023	GBH 8739	124	23
2023	PBH 20	586	19	2023	GBH 8737	1 699	21
2023	PBH 19	533	13	2023	GBH 8735	227	17
2023	PBH 18	303	24	2023	GBH 8640	219	24
2023	PBH 17	19	33	2023	GBH 8729	453	26
2023	PBH 16	1 078	20	2023	GBH 8721	303	19
2023	PBH 15	1 265	23	2023	GBH 8717	3 091	21
2023	PBH 14	794	21	2023	GBH 8707	343	18
2023	PBH 13	48	24	2023	GBH 8701	198	27
2023	PBH 12	1 075	22	2023	GBH 8693	510	22
2023	PBH 11	106	17	2023	GBH 8692	366	26
2023	PBH 10	753	22	2023	GBH 8677	1 515	11
2023	PBH 8	592	19	2023	GBH 8665	329	22
2023	PBH 7	1 184	21	2023	GBH 8664	125	26
2023	PBH 3	11	20	2023	GBH 8627	1 289	16
2023	PBH 6	1 527	20	2023	GBH 8601	1 349	14
2023	PBH1	1 175	19	2023	GBH 8602	774	11
2023	GBH 8906	247	34

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa

Table 7-4: Summary of Recent Tshepong North Underground Drill Holes Intersecting the B Reef


Year	Drill Hole ID	Gold Value (cmg/t)	Ave. Channel Width (cm)	Year	Drill Hole ID	Gold Value (cmg/t)	Ave. Channel Width (cm)
2023	GBH 8620	251	98	2023	GBH 8749	31	157
2023	GBH 8643	122	148	2023	GBH 8758	33	138
2023	GBH 8715	8 127	104	2023	GBH 8765	468	146
2023	GBH 8746	21	117	2023	GBH 8826	376	130
2023	GBH 8759	1 400	129	2023	GBH 8809	1 180	270
2023	GBH 8767	980	124	2023	GBH 8808	173	193
2023	GBH 8774	127	39	2023	GBH 8828	90	135
2023	GBH 8779	343	106	2023	GBH 8820	171	123
2023	GBH 8786A	1 288	107	2023	GBH 8822	411	135
2023	GBH 8793	521	85	2023	GBH 8801	949	152
2023	GBH 8794	122	113	2023	GBH 8800	950	98
2023	GBH 8798	986	115	2023	GBH 8785	445	163
2023	GBH 8803	187	226	2023	GBH 8738	1 294	134
2023	GBH 8804	362	121	2023	GBH 8831	294	94
2023	GBH 8505	128	227	2023	GBH 8896	1 702	216
2023	GBH 8811	427	91	2023	GBH 8867	3 491	120
2023	GBH 8812	2 148	94	2023	GBH 8855	135	106
2023	GBH 8813	437	136	2023	GBH 8604	106	177
2023	GBH 8814	304	117	2023	GBH 8606	96	49
2023	GBH 8815	318	78	2023	GBH 8709	7 795	102
2023	GBH 8817	401	119	2023	GBH 8691	1 751	110
2023	GBH 8824	791	117	2023	GBH 8619	139	336
2023	GBH 8827	928	50	2023	GBH 8546	1 044	103
2023	GBH 8692	366	26	2023	GBH 8569	25	51
2023	GBH 8686	1 784	67	2023	GBH 8631	284	92
2023	GBH 8698	480	146	2023	GBH 8635	10	40
2023	GBH 8700	178	178	2023	GBH 8644	111	132
2023	GBH 8690	21 009	42	2023	GBH 8662	449	49
2023	GBH 8742	11 265	135	2023	GBH 8670	566	54
2023	GBH 8778	2 137	179	2023	GBH 8676	54	32
2023	GBH 8681	452	168	2023	GBH 8630	275	119
2023	GBH 8638	750	109	2023	GBH 8724	456	140
2023	GBH 8595	1 174	52	2023	GBH 8713	262	127
2023	GBH 8816 A	1 565	213	2023	GBH 8682	215	113
2023	GBH 8679	5 761	165	2023	GBH 8647	31	178
2023	GBH 8923	2 392	190	2023	GBH 8642	149	99
2023	GBH 8922	4 828	208	2023	GBH 8634	192	105
2023	GBH 8921	241	136	2023	GBH 8629	76	116
2023	GBH 8914	881	122	2023	GBH 8848	786	158
2023	GBH 8900	153	172

7.9Commentary on Exploration

Surface drilling was used as the initial exploration drilling, and this was later infilled to provide sufficient detail for geological modelling and Mineral Resource estimation. The underground infill drilling system is in place to improve data density in specific areas and are drilled from the underground development access drives.

Logging procedures are conducted as per the Harmony company standards, which are used on all surface and underground mines and are best practice and have been in place consistently since 2001. Previously extensive drilling together with 3D seismic surveys was done and the Tshepong North geology and depositional environment is relatively well understood. All information is safely stored at the Harmony Steyn offices.

The QP is of the opinion that the quality and quantity of the exploration methods and information gathered is sufficient to support the estimation of Mineral Resources and Mineral Reserves.

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa

8Sample Preparation, Analyses and Security

Section 229.601(b)(96) (8) (i-v)

This section summarises information relating to the sample preparation on site through to the laboratory preparation and analysis.

8.1Sampling Method and Approach

Sample types used to support both production and geological exploration include diamond drill core samples and channel (chip) samples.

8.1.1Channel Samples

Channel sampling is (and was by Anglo previously) undertaken according to industry best practice, and presently now according to Harmony’s Underground Sampling Procedure which incorporates QAQC principles. Tshepong North sampling grid on the Basal Reef stoping is a 5m by 5m interval grid and B reef sampling is on 3m by 3m interval grid.

For development, Basal reef is at 4m interval and B Reef at 2m interval due to the high nugget effect and variability, the full extent of the on-reef development must be sampled on one sidewall.

Samples are chipped from the advancing face from within clearly measured and marked channel sections, including the 2cm hanging wall and footwall width. Sample widths are measured at right angles to the dip of the reef. Individual sample widths are measured from bottom to top along the two parallel lines. Two clino-rules are used for measuring the sample widths. One ruler is held horizontally with the spirit level on strike, and another held at right angles to the dip. The two rulers must cross each other at right angles. The face measured must agree with the totals of all individual widths. All measurements are made to the nearest centimetre.

The channel and sample lines are chipped out using a standard chisel and mallet, bagged, labelled with a unique sampling number, and sealed. An adequate mass of each sample is collected to allow sufficient sized aliquots to be analysed at the designated laboratory. The minimum sample weight sent for assay is approximately 300g.

Samples are weighed and submitted to the designated laboratory for analyses. All inter-person transfers are recorded. This process continues until the samples have been submitted to the laboratory.

8.1.2Core Samples

Diamond drill core is transported to the on-site storage facility under the supervision of a Senior Geologist. Upon arrival, the core is logged and sampled according to the internal Harmony Drill hole Sampling Procedure.

Where possible the entire channel width intersected in each drill hole is split using a diamond drill core cutter and one half of the sample is bagged, tagged and sent to the designated laboratory for assay. The remaining half is retained for future reference. If the core condition is such that a successful cut cannot be achieved, then the whole core is submitted for assay.

Pertinent data captured during sampling includes sample width (cm), mass, core lithological intersection angles and a detailed visual description of the reef. The data is recorded in the drill hole database together with the unique sample number, collection date and spatial location.

All samples are assessed for quality and signed-off by the Senior Geologist for completeness and auditability, prior to laboratory dispatch.

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa

8.2Density Determination

The relative density of samples was determined through the work conducted by the Harmony Free State central office regarding relative densities on the various shafts since August 2009.

More recently (2020), a total of 40 samples were taken from underground workings including hanging wall, reef and footwall samples. The dry mass and the submerged mass of the samples in water were measured and the density was calculated.

Tests have occasionally been conducted thereafter on samples collected from the working places.

A single relative density of 2.72 is used for Mineral Resource estimates.

8.3Sample Security

Chip samples are bagged, sealed and delivered by the samplers to the onsite coreyard on the same day as they are collected. The core yard is a secure facility with access control measures in place. Samples are delivered to the laboratory by the mine.

Cores are delivered to the core yard at the end of each day’s drilling for secure storage. Sampling only takes place at the core yard. The samples are bagged and sealed and stored until they are delivered to the laboratory.

Samples are stored in secured facility and can only be transported by a permit holder for transporting gold bearing material. Waybills and registers are checked and signed off by security. The samples are received from the mine in locked containers with seals.

The sample labels are scanned at the designated laboratory and the batches compared to the submitted sample sheets. The scanned bar codes are kept at the laboratory and compared to the work sheets that are automatically created on the system. Sample lists submitted by the mine are used to compare what is received at the laboratory.

8.4Sample Storage

All pulp samples of exploration drill hole intersections and underground chip sample are kept for a few months at the laboratory and later discarded. The remaining half of the sampled core of exploration holes is kept at the core yard for future references.

8.5Laboratories Used

Both the underground and surface exploration samples were historically sent to the SGS South Africa (Pty) Limited (“SGS”) independent laboratory, with Anglo American Laboratories used as a secondary independent laboratory. All historical data, underground chip sampling, both underground and surface borehole results from previous “Owners”(Anglo Gold Ashanti) are included in the current valuation model.

All samples are currently sent to the Harmony Assay Laboratory located in Welkom for preparation and assay. The laboratory is ISO/IEC 17025:2017 certified for chemical analysis by the South African National Accreditation System (Accreditation No. T0520). Harmony Assay Laboratory is however not an independent laboratory.

8.6Laboratory Sample Preparation

Upon receipt, the samples are dried, crushed, and milled to the appropriate size. Routine screen tests on pulps by the assay laboratory are used to check comminution of samples to contract specification. The contract specification is that the comminution should be 80% passing 75µm for Tshepong North.

The total percentage mass loss on each sample should not exceed 2%.

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa

8.7Assaying Methods and Analytical Procedures

For the period 1 January to 30 June 2023 a total of 36,516 samples were submitted for analysis of gold. Gold is analyzed by fire assay with a gravimetric finish, while uranium is analyzed by XRD. For a period ranging from 2010 up to March 2020, the development and drill hole reef samples were also assayed for uranium.

After the preparation stage the samples are packed into trays and transported to the fluxing-room. A catch weight aliquot of ±25g and a flux aliquot of ±100g is placed into a fire assay crucible and thoroughly mixed. The samples are then transferred to the ovens for the fusion process. The cupellation process is where the precious metals are collected in a lead button and then separated from the lead by means of oxidation fusion. The gold prill is then added to a nitric acid solution to dissolve the silver and thereafter the remaining gold prill is weighed to determine its mass relative to the original sample mass.

To ensure that a high standard of analysis is maintained, each step of the analytical process and procedure,

including the adherence to safety standards, is checked by a supervisor.

8.8Sampling and Assay Quality Control (“QC”) Procedures and Quality Assurance (“QA”)

The assessment of assaying accuracy and precision is carried out using certified Standard Reference Materials (“SRM”), blanks and duplicates. SRMs, blank samples and duplicate samples are added with the underground chip sample and drill hole core sample streams prior to being sent to the assay laboratory.

In addition, regular audits of the laboratory processes and facilities are conducted by mine evaluators and regional experts to monitor compliance and quality controls.

8.8.1Standards

A range of SRMs were sourced from African Minerals Standards (“AMIS”) and inserted into the sample sequence by the logging geologist.

For analysis of surface and underground drill holes, a minimum of one gold SRM is required for every 20 drill hole samples assayed. This equates to approximately 5% of the total drill hole samples analyzed for Tshepong North.

Laboratory statistical control is deemed acceptable should SRMs be within two standard deviations of the recommended value. Investigative action is taken when reference materials returned exceed the standard deviation limit.

If the SRM or blank sample has been deemed to have failed, the entire batch of samples re-assayed with the failed QAQC sample having to be identified. A request must then be sent to the laboratory requesting the laboratory to repeat the assay procedure on all samples within the batch.

A second SRM or blank sample is provided to the laboratory to include with the batch of samples. Should the batch of samples fail the QAQC standards again, these samples are excluded from the sampling database (not captured in the sampling system), and the panel/drill hole will have to be resampled if necessary.

A total of 1 238 SRMs were submitted to Harmony Assay Laboratory for Tshepong North between January 2022 and June 2023. The results are summarised in Table 8-1. Seventeen out of 1 238 samples (0.1%) failed, and the respective sample trays deleted from the system and do not form part of model.

Table 8-1: Summary of Harmony Assay Laboratory SRM Performance for Tshepong North


Quality Control Material Type	No. of Samples Submitted	No. of Failed Samples	Action Taken
AMIS0428	304	1	Failed samples were queried from the lab and re-assays were requested. If the re-assays failed the sample sheet was deleted from the system.
AMIS0455	281	4
AMIS0460	254	2
AMIS0685	293	2
AMIS0694	106	8

Total	1 238	17

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa

8.8.2Blanks

A total of 2,548 coarse blank samples were submitted to Harmony Assay Laboratory during January 2022 to June 2023 for Tshepong North. The lowest detection limit at the laboratory is 0.063g/t. Ten samples plotted outside the 3x detection limit.

Failed samples were queried from the lab and re-assays were requested. If the re-assays failed the sample sheet was deleted from the system.

8.8.3Duplicates

For the samples analysed at Harmony Assay Laboratory during January 2022 to June 2023, results of duplicate analysis indicated correlation at lower grades. A total of 2,187 duplicate samples were analysed for Tshepong North and, out of the analysis, a total of 835 samples (38%) were outside the average required mean value.

Failures were queried during the central QA/QC meetings held every six months.

8.9Comment on Sample Preparation, Analyses and Security

In the opinion of the QP that:

•the drill core sampling method is appropriate for the mineralisation styles encountered at Tshepong North;

•all underground chip sampling is representative of the channel sampled;

•the sample preparation, security and analytical procedures followed for gold grade determination are adequate; and

•the results of the QAQC assessment have been appropriately addressed to ensure that the assay results of the primary samples are adequate for Mineral Resource estimation.

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa

9Data verification

Section 229.601(b)(96) (9) (i-iii)

9.1Databases

Tshepong North drill hole and underground channel sampling data was previously captured and stored in AuBIS electronic database. Upon acquisition of the mine, Harmony has migrated to data capture in the GMSITM system.

Geological core logging is stored using both Deswik CADTM (“Deswik”) and DatamineTM Fusion (“Datamine”). This database is protected through administration rights allocated to an authorised administrator.

9.2Data Verification Procedures

Data verification procedures included the following:

•the drill hole database was checked against the original logs;

•the database was integrated with DeswikTM and DatamineTM software to check for missing collar coordinates, collar position and elevation errors, downhole survey errors, interval errors and duplicate sample records;

•when assay results were returned from the laboratory, they were captured into the electronic database by the Senior Evaluator and Geologist. The QC sample results were assessed for performance before the primary sample results could be used for Mineral Resource estimation;

•the primary assay results captured in the database were validated by spot checking a selection of drill holes used in the current Mineral Resource estimate; and

•the assays captured in the electronic database were checked against the original laboratory certificates.

The QP did data verification and did not identify any critical errors in the database.

9.3Limitations to the Data Verification

Previous data has been verified through various methodologies i.e. a “post plot” of all sample points relative to the mine workings are made in order to locate any co-ordination errors. When “manual” capturing (re-digitising old assay tracings) of data occurs, there is a risk that entire sample sheets may plotted incorrectly due to the use of incorrect projections and or scales/constants. All co-ordination errors are identified and corrected.

9.4Comment on Data Verification

The QP is of the opinion that the Tshepong North drill hole and sample databases are reliable and adequate for the purposes Mineral Resource estimation.

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa

10Mineral Processing and Metallurgical Testing

Section 229.601(b)(96) (10) (i-v)

The Harmony One plant and its processing facility have been in operation since 1986, as such the mineral processing method is well established for the style of mineralisation processed.

All of the ore from the current mining areas at Tshepong North is treated at the Harmony One Plant gold processing facility. This is a well-established plant which has been treating Basal and B-Reef ore from Tshepong North since 1991 with first production from Tshepong North. Harmony is therefore able to make use of historical recovery trends as the primary basis for their recovery assumptions, rather than through the use of metallurgical test work. The reader is referred to the Modifying Factors Section 12.2.2, respectively, which contain the recoveries used for the Mineral Reserve Plans for Tshepong North. A detailed description of the processing facilities is provided in Section 14.

A due diligent process exist whereby regular routine metallurgical test work is conducted on the Tshepong North Basal and B-Reef. A six month representative sample of Tshepong North’s material was submitted for test work (Metallurgical Report No 23/3001 dated 25 May 2023). The sample reported an average gold grade of 4.31 g/t. The results of this test work indicated that of the total contained gold, 95.8% was amenable to direct cyanidation after 28 hours of leach time. Under direct cyanidation, 2.7% of the gold was preg robbed by components occurring within the sample. 98.5% of the contained gold is expected to be recoverable via carbon-in-leach processing. Of the remaining gold, some 0.1% was found to be occluded in silica/gangue components. The Hydrochloric acid digestible mineral phase was associated with 1.3% of the gold. The Nitric acid digestion phase showed that 0.1% of the gold was associated with Nitric acid digestible minerals (e.g. Pyrite, Arsenopyrite). Mineral association have been inferred with no specific minerals being identified via the procedural diagnostic method.

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa

11Mineral Resource Estimate

Section 229.601(b)(96) (11) (i-vii)

The current Mineral Resources for Tshepong North have been estimated using DatamineTM Studio 3 (“Datamine”) modelling software, which is linked to a customised scripting menu. This scripting menu allows for professional and easy managing of the data and building of geostatistical models.

The narrow-tabular nature of the reefs lends themselves to the estimation of grade and thickness in two-dimensional (“2D”) block models, without the requirements for geological wireframes. An independent process of building a set of three-dimensional (“3D”) wireframes of the structural interpretation to inform mine planning and the Mineral Reserve estimates is also undertaken.

The estimation method used for Measured Mineral Resource estimates at Tshepong North is ordinary kriging (“OK”), while simple macro kriging (“SMK”) is used for Indicated and Inferred Mineral Resource estimates.

11.1Geological Database

Tshepong North’s Mineral Resource estimate is based on the surface and underground exploration data obtained up to 30 December 2023. The database was exported from the electronic database to DatamineTM modelling software.

The Basal Reef validated database contains a total of 2,198 surface and underground drill holes and 517,796 underground channel (chip) samples. The B Reef validated database contains a total of 310 surface and underground drill holes, and 50,336 underground channel (chip) samples.

11.2Global Statistics

Histograms and statistics of the raw data are calculated for each geological domain for comparison purposes. The Coefficient of Variation ("COV"), calculated by dividing the standard deviation with the mean, gives a measure of the variability of the data. A high COV (>1) represents highly variable or highly skewed data, which may require some form of capping of extreme values to lower the COV to a more reasonable value (c.1).

The global statistics for the Basal and B reefs, reported according to geozones, are provided in Table 11-1.

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa

Table 11-1: Global Statistics for Basal and B Reef


Reef / Geozone	No. Samples	Minimum (cmg/t Au)	Maximum (cmg/t Au)	Mean (cmg/t Au)	Variance	SD (cmg/t Au)	COV
Basal Reef
1	3 167	0.700	1 748	606	211 055	459	0.758
2	59 693	1.000	4 023	946	733 146	856	0.905
3	126 164	0.140	6 188	1 542	1 709 257	1 307	0.848
4	13 850	1.000	1 807	644	213 929	463	0.719
5	121 150	0.430	4 454	1 198	903 156	950	0.793
6	44 884	0.280	3 274	830	460 670	679	0.817
7	29	18.000	1 528	270	71 167	267	0.990
8	34 757	1.000	5 073	1 939	2 393 680	1 547	0.798
9	19 642	1.000	3 408	878	592 857	770	0.877
10	40 969	1.000	7 762	2 291	3 569 370	1 889	0.825
11	3 862	1.000	7 336	2 512	3 737 492	1 933	0.770
12	46 555	4.000	3 363	1 278	738 533	859	0.672
13	4	525.000	1 218	967	70 255	265	0.274
B Reef
1	702	1.000	7 204	816	2 138 598	1 462	2.204
2	1 653	1.000	4 515	1 055	1 105 431	1 051	1.099
3	5 079	0.400	4 865	652	861 070	928	1.424
4	26 220	0.440	11 043	1 512	4 724 359	2 174	1.438
5	5 925	0.800	10 510	1 179	3 768 431	1 941	3.180
6	4 832	0.320	15 433	1 144	7 179 829	2 680	6.880
7	3 769	0.910	28 606	4 808	37 717 076	6 141	1.579
Total	562 906

11.3Geological Interpretation

The imported data is attributed to geological domains or geozones. Geozones are selected based upon continuity in facies type, as well as gold grade and channel width distribution. Geozones may be constrained by geological structures. Geozones are identified for both the Basal and B reefs.

The Basal Reef is continuous over both Tshepong North and South, and a single model is created across both mines. The area is divided into 13 geozones. The B Reef at Tshepong North and South has been divided into a series of six geozones. The geozones for both reefs are presented in Figure 11-1.

Geozones are continuously updated based on geological information, new sampling and drilling results. Any proposed changes to the geozones are presented to the geostatistical team for approval and signed off.

11.4Structural Wireframe Model

The geological structure is interpreted by means of series of 1:1,000 structural plan overlays. These plans are vertical projections of the reef plane showing base-of-reef strike lines at 10m intervals based on elevations below datum. Interruptions in the continuity of the reef are marked by fault-reef cut-offs illustrating the loss or gain of ground and with displacement measured as vertical stratigraphic throws. Known or suspected lateral shifts are also illustrated.

A set of 3D structural wireframes is generated, representing the geological interpretation for each reef. This is informed by the geological drilling, chip sampling and underground geological mapping and is created in Datamine™ to allow subsequent mine design and planning to take cognisance of the latest geological information. These wireframes are not required for the Mineral Resource estimates.

11.5Compositing

The drill hole and chip samples are composited over the full length of the reef intersection.

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa

11.6Capping

Outlying values (both for cmg/t and channel width) are calculated per domain at an optimal percentile using the “QUANTILE” process. The capping allows for meaningful Semi-Variogram modelling and avoids potential over-estimation due to extreme sample values. The capping values applied are shown in Table 11-2.

11.7Variography

The experimental semi-variogram is a descriptive statistical diagnostic tool for spatially characterizing regionalized variables. The semi-variogram is a mathematical function that describes how the spatial continuity of the sampled attribute changes as a function of distance and orientation.

Either an isotropic or an anisotropic model can be defined, comprising a nugget variance and up to nine individual structures, although it is rarely necessary to include more than three structures. Each structure may be either spherical, power, exponential, Gaussian or De Wijsian, although spherical models are deemed adequate for Tshepong North and South. Point-support semi-variograms were modelled for closely sampled areas eventually classified as Measured Mineral Resources; 60m x 60m declustered-support semi-variograms are modelled for the Indicated Mineral Resources and 120m x 120m declustered-support semi-variograms are modelled for the Inferred Mineral Resources.

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa


Figure 11-1: Tshepong North Basal and B Reef Geozones

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa

Table 11-2: Capping Values by Reef and Geozone


Geozone	Gold Cut (cmg/t) (Max)	CW Cut (cm) (Max)	Geozone	Gold Cut (cmg/t) (Max)	CW Cut (cm) (Max)
Basal Reef			B Reef
1	1 748	20	1	7 204	170
2	4 023	123	2	4 515	215
3	6 154	137	3	4 907	232
4	1 807	20	4	9 923	219
5	4 474	28	5	10 510	199
6	3 226	28	6	15 433	172
7	1 528	32	7	28 606	216
8	5 073	77
9	3 408	100
10	5 266	74
11	7 336	27
12	3 363	58
13	1 218	45

11.8Mineral Resource Estimation Methods and Parameters

Grade and thickness estimates are undertaken within each geozone and informed by statistical and geostatistical analysis. Two variables are estimated namely; gold accumulation (cmg/t) (which factors in both the thickness of the reef thickness and grade) and channel width. No change of support corrections is considered necessary as it is assumed that the differing support sizes for chip samples and drill hole samples are negligible.

The orientations and ranges of each geozone’s semi-variogram are used to determine the optimised set of kriging estimation parameters. The search ellipse is aligned with respect to its range and direction, to the direction of the associated semi-variogram, as well as the range distances.

Measured Mineral Resource estimates are undertaken using OK. Estimates are generally kriged into 30m x 30m blocks for the Measured Mineral Resource from the point support data.

Indicated and Inferred Mineral Resource estimates are undertaken using SMK. The Indicated Mineral Resource is kriged into 60m x 60m block sizes. The Inferred Mineral Resource is estimated using the associated regularized variograms and kriging into 120m x 120m blocks. Any un-kriged areas in the Inferred Mineral Resource areas are then covered by global mean estimates.

The results of the Basal and B reef estimation are shown in Figure 11-2, for Tshepong North.

The current minimum and maximum sample points for the Basal Reef is:

•15 and 25 for the Basal Reef Measured Mineral Resource estimation;

•8 and 20 for Indicated Mineral Resource estimation; and

•3 and 10 for the Inferred Mineral Resource estimation.

The current minimum and maximum sample points for the B Reef is:

•12 and 30 for Measured Mineral Resource estimation;

•8 and 20 for Indicated Mineral Resource estimation; and

•3 and 15 for the Inferred Mineral Resource estimation.

Any un-kriged areas in the Inferred Mineral Resource category regions are then estimated using a global mean.

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa


Figure 11-2: Tshepong North Basal Reef and B Reef Estimation Results

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa

The Measured Mineral Resource model is constrained using the Slope of Regression Estimation Confidence and merged with the Indicated Mineral Resource and Mineral Resource models to produce a combined kriged block model.

The channel width is estimated for all block sizes and ranges between 8cm and 34cm, averaging 18cm for Basal Reef. For B Reef, the channel width ranges between 52cm and 94cm and averages 79cm.

11.9Density Assignment

The relative density currently used for tonnage calculations at Tshepong North is 2.72t/m³. Reef volume is determined by block area multiplied by the thickness estimate. The tonnage of each reef horizon is determined by multiplying the volume by the relative density.

11.10Model Validation

The QP validated the Tshepong North Mineral Resource model using the following:

•visual comparisons with the raw drill hole data;

•comparisons of the raw drill hole data statistics with the model statistics;

•model volume; and

•visual assessment of the block model with drill hole intersections to ensure that the grades are locally honoured by the model.

The QP did not identify any critical errors in the block model.

11.11Mineral Resource Evaluation

The Mineral Resource estimate for Tshepong North done by the QP is considered to have reasonable prospects for economic extraction. This is demonstrated by the result of the cash flow for the mine. The cut-off value for the Mineral Resources is determined at 648cmg/t, for the gold based on the economic assumptions presented in Table 11-3 at the effective date 30 June 2023. This cut-off value represents typical costs for the mining method and preliminary mining and metallurgical recovery assumptions.

Table 11-3: Harmony Economic Assumptions (30 June 2023)


Tshepong North
Description	Unit	Value
Gold price	USD/oz	1 764
FX rate	ZAR:USD	16.22
Gold price	ZAR/kg	920 000
Plant recovery factor	%	95.0
Unit cost	ZAR/t	4 075

Notes: Unit cost includes cash operating cost, royalty and ongoing development capital

The gold price was derived by the Harmony Executive Committee at Head Office. Based on a market study findings the QP agrees on pricing and considers the price to be appropriate for Mineral Resource estimation and is slightly higher than that used for estimating Mineral Reserves (USD1,582/oz). The operating costs (both mining and processing) are based on historical performance and budget.

11.12Mineral Resource Classification and Uncertainties

The Tshepong North Mineral Resources have been classified into Measured, Indicated and Inferred categories, according to the S-K 1300 definitions. The classification is based on drill hole spacing, geological and geostatistical confidence.

For the geostatistical confidence, the Measured Mineral Resource model is constrained by the Slope of Regression Estimation Confidence, and the Indicated and Inferred Mineral Resource models are constrained by their kriging estimation parameters.

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The QP then considers if the geostatistical confidence boundaries require modification based on the geological confidence in an area. The geological confidence could include confidence in the sedimentary facies and mineralisation model, or confidence in the structural model.

The application of the classification criteria results in the following set of approximate sample spacings for each Mineral Resource category:

•5m x 5m for Measured Mineral Resources (underground channel sampling);

•100m x 100m for Indicated Mineral Resources; and

•1,000m x 1,000m for Inferred Mineral Resources.

Mineral Resources are discounted by a geological loss to account for unknown but anticipated fault loss. The discounts used for the Basal Reef are between:

•1% and 3% for Measured Mineral Resources;

•3% and 11% for Indicated Mineral Resources; and

•7% and 60% for Inferred Mineral Resources.

Similar information applies to the for B Reef.

Factors that may affect the Mineral Resource estimates include the following:

•gold price assumptions;

•exchange rate assumptions;

•operating and capital cost assumptions;

•gold recovery assumptions;

•geology-related risks; and

•operational risks.

11.13Mineral Resource Estimate

The Mineral Resources for Tshepong North were originally prepared, classified and reported according to SAMREC, 2016. For the purposes of this TRS, the Mineral Resources have been classified in accordance with § 229.1302(d)(1)(iii)(A) (Item 1302(d)(1)(iii)(A) of Regulation S-K).

The location of the Basal Reef Mineral Resources across Tshepong North are presented in Figure 11-3. The location of the B Reef Mineral Resources is shown in Figure 11-3.

The QP compiling the Mineral Resource estimate for Tshepong North is Mr A Louw, Ore Reserve Manager at Tshepong North and employee of Harmony. The Mineral Resource estimate for Tshepong North, as at 30 June 2023, exclusive of Mineral Reserves, is summarised in Table 11-4.

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Figure 11-3: Location and Classification of Tshepong North Mineral Resources and Mineral Reserves for the Basal Reef

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Figure 11-4: Location and Classification of Tshepong North Mineral Resources and Mineral Reserves for the B Reef

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Table 11-4: Summary of Tshepong North Mineral Resources as at 30 June 2023 (Exclusive of Mineral Reserves) 1-8


METRIC
Mineral Resource Category	Tonnes (Mt)	Gold Grade (g/t)	Gold Content (kg)
Measured	11.920	12.42	147 989
Indicated	3.162	10.28	32 493
Total / Ave. Measured + Indicated	15.082	11.97	180 481
Inferred	9.744	10.20	99 356
IMPERIAL
Mineral Resource Category	Tons (Mt)	Gold Grade (oz/t)	Gold Content (Moz)
Measured	13.139	0.362	4.758
Indicated	3.485	0.300	1.045
Total / Ave. Measured + Indicated	16.625	0.349	5.803
Inferred	10.741	0.297	3.194

Notes:

2. The Mineral Resource tonnes are reported as in-situ with reasonable prospects for economic extraction.

3. No modifying factors or dilution sources have been included to in-situ Reserve which was subtracted from the SAMREC Resource in order to obtain the S-K 1300 Resource.

4. The Mineral Resources are reported using a cut-off value of 700cmg/t determined at a 90% profit guidance, and a gold price of USD1,764/oz.

5. Tonnes are reported as rounded to three decimal places. Gold values are rounded to zero decimal places.

6. Mineral Resources are exclusive of Mineral Reserves. Mineral Resources are not Mineral Reserves and do not necessarily demonstrate economic viability.

7. Rounding as required by reporting guidelines may result in apparent summation differences.

8. The Mineral Resource estimate is for Harmony’s 100% interest.

11.14Tshepong North Measured and Indicated Mineral Resource gold content estimate, exclusive of Mineral Reserves, decreased by 0.371Moz from 6.173Moz gold as at June 2022 to 5.803Moz gold as at June 2023. The decrease is mainly a result of the increase in the cut off grade from 648cmgt to 700cmgt.

11.15Comment on Mineral Resource Estimates

The QP is of the opinion that Mineral Resources were estimated using industry accepted practices and conform to SAMREC, 2016. The Mineral Resources have also been reported in accordance with the S-K 1300 guidelines.

There are no other environmental, legal, title, taxation, socioeconomic, marketing, political or other relevant factors known to the QP that would materially affect the estimation of Mineral Resources that are not discussed in this TRS.

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Tshepong North, Free State Province, South Africa

12Mineral Reserve Estimate

Section 229.601(b)(96) (12) (i-iv)

The reported Mineral Reserves are derived through a business planning process and consideration by the Chief Operating Decision-Maker (“CODM”) and the QP. The business planning process comprises multi-functional reviews inclusive of all mining, support and service departments that are involved in the verification of the inputs and the Modifying Factors. The CODM consists of various executive roles and responsibilities. These executives assess the profitability, the revenue and production costs. The CODM also considers capital expenditure, gold production and tonnes milled when assessing the overall economic sustainability.

12.1Tshepong North

12.1.1Key Assumptions, Parameters, and Methods Used to Estimate the Mineral Reserve

The results and assumptions derived from the business planning process extends over an 18-month period. The planning process carefully considers strategic plan directives; analysis of historical performance; realistic productivity, and cost parameters; Modifying Factors; and technical and economic studies that have demonstrated justified extraction, as applicable to specific portions of the Mineral Reserves.

All reported Mineral Reserves originate from the Basal Reef, and to a lesser extent, the B Reef. The Mineral Reserves are considered based on several factors, including:

•the latest geological structure and associated Mineral Resource estimation models that constrain the layout for the mine design and Mineral Reserve planning;

•the need for regional rock engineering stability pillars;

•the extent of pillar mining, mining of remnant areas, reclamation of broken ore out of old areas, tailings, or any other source;

•the SGM method in use,

•the sources of dilution and other dilution and other Modifying Factors; and

•only Measured and Indicated Mineral Resources are used to derive Mineral Reserves.

A combination of modelling exercises forms an integrated model informing the Mineral Reserve plan and the Tshepong North Mineral Reserves estimates, and includes the:

•geological block model;

•structural model depicting prominent geological features;

•isopach model highlighting the mine’s sedimentology and shale formations; and

•geotechnical model including interpreted data, modelled in the form of support pillars.

12.1.2Modifying Factors

The Modifying Factors used to convert the Mineral Resource to a Mineral Reserve for Tshepong North are presented in Table 12-1. The Modifying Factors are consistent with the modelling, planning and computing estimates used in determining the Mineral Reserves, which are also consistent with historical performance. The plant recovery as shown in Table 12-1, is also consistent with the processing and recovery methods.

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Table 12-1: Tshepong North Modifying Factors Used for Mineral Reserve Determination


Modifying Factor	Unit	Value
Relative Density	t/m3	2.72
Stoping Width	cm	118
Gully	%	8.90
Off Reef	%	4.81
Waste to Reef	%	0.80
Flushing tons	%	2.28
Discrepancy	%	5.06
Mine Call Factor	%	72.00
Plant Recover Factor	%	94.96
Mine Recover Factor	%	68.37
Plant Call Factor	%	100
Mineral Reserve cut-off	cmg/t	800

Notes: Development waste to reef, including the decline development.

12.1.3Mineral Reserve Estimate

The Mineral Reserves for Tshepong North were originally prepared, classified and reported according to SAMREC, 2016. For the purposes of this TRS, the Mineral Reserves have been classified in accordance with § 229.1302(d)(1)(iii)(A) (Item 1302(d)(1)(iii)(A) of Regulation S-K) and is in alignment with previously reporting regulations of SAMREC code 2016

The location of the Basal and B Reef Mineral Reserves are presented in Figure 11-3 and Figure 11-4.

The QP compiling the Mineral Resource estimate for Tshepong North is Mr A Louw, Ore Reserve Manager at Tshepong North and employee of Harmony.The Mineral Reserve estimate for Tshepong, as at 30 June 2023 is summarised in Table 12-2.

Table 12-2: Summary of Tshepong North Mineral Reserves as at 30 June 2023 1-5


METRIC
Mineral Reserve Category	Tonnes (Mt)	Gold Grade (g/t)	Gold Content (kg)
Proved	2.997	4.79	14 341
Probable	0.766	5.73	4 390
Total (Proved + Probable)	3.763	4.98	18 731
IMPERIAL
Mineral Reserve Category	Tons (Mt)	Gold Grade (oz/t)	Gold Content (Moz)
Proved	3.303	0.140	0.461
Probable	0.845	0.167	0.141
Total (Proved + Probable)	4.148	0.145	0.602

Notes:

2. Tonnes, grade, and gold content are declared as net delivered to the mills.

4. Gold content has not taken metallurgical recovery factors into account.

5. Mineral Reserves are reported using a cut-off grade of 800cmg/t determined using a gold price of USD1,582/oz gold.

12.1.4Mineral Reserve Reconciliation

The declared Mineral Reserve decreased from 0.771Moz as at 30 June 2022 to 0.602Moz as at 30 June 2023. Decrease mainly as a result in the increase in the cut off grade from 650cmgt to 800cmgt.

12.2Commentary on Mineral Reserve Estimate

The declared Mineral Reserves takes into consideration all Modifying Factors, respective to the mining area. The declared Mineral Reserves are depleted to generate the Tshepong North cash flow.

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Any by-products that are recovered as part of the refining process, make up an immaterial component of the total metal inventory, and is thus not reported as part of the Mineral Reserve estimate.

There are no obvious material risks that could have significant effect on the Mineral Reserves.

In the opinion of the QP, given that Tshepong North mine is an established operation, the modifying factors informing the Mineral Reserve estimates would at a minimum, satisfy the confidence levels of a Feasibility Study.

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Tshepong North, Free State Province, South Africa

13Mining Methods

Section 229.601(b)(96) (13) (i-v)

Tshepong North may be classified as moderate to deep level underground gold mine currently operating at depths of up to 2,161m below surface.

13.1Mining Operations

Tshepong North utilise one main shaft (Figure 3-2). Tshepong North shaft operate semi-independently with respect to ventilation requirements, ore and waste hoisting and men and material movement.More information on the details of the shaft operations, any interdependencies and the railway systems are described in Section 15.

13.1.1Tshepong

The Tshepong North Mine is a mature underground section and is made up of two mineable reefs namely the Basal Reef and B Reef. The reefs at Tshepong North are accessed via a single underground vertical shaft and a twin decline system.

Currently five working levels are being mined from the Tshepong North Shaft and four working levels are being mined in the decline. The decline system was constructed as a 1,700m extension to access the Basal Reef.

The characteristics of the Basal Reef at the Tshepong North Mine are synonymous to the characteristics of the reef at the Tshepong South Mine. Tshepong North Mine extracts the Basal Reef via undercut mining methods, leaving a quartzite beam in the hanging wall to ensure the stability of the overlaying shale.

The B Reef is stratigraphically located two production working levels above the Basal Reef. The B Reef occurs in three facies, with varying widths of 30cm - 170cm and displays erratic high-grade distributions. B Reef are extracted per annum which typically does not exceed 40% of the total production volume. The reef is extracted via open stoping mining operations. It is also supported by a separate development of footwall infrastructure based on its stratigraphic location.

Structurally, the Dagbreek Fault is the most prominent feature at the Tshepong North Mine, and largely hosts the shaft infrastructure. Since the Tshepong North Shaft is in a fault loss zone, there is no associated shaft pillar.

13.1.2Sequential Grid Mining (“SGM”)

SGM is the preferred mining method used at Tshepong North. This method makes use of dip pillars and reduced mining spans with pre-developed tunnels, aimed at further control of stresses experienced in rock movement.

The SGM sequence is a V-shaped configuration, colloquially referred to as the “inverted Christmas tree”. A schematic representation of the SGM sequence used at Tshepong North is shown in Figure 13-1.

The SGM mining methods are suitable for underground, narrow reef mining. A common feature of the SGM method is the layout of the primary and secondary development. Primary development is done off-reef (in waste rock), while secondary development is done on-reef (in the mineralised zone). In primary development, horizontal haulages are developed from the vertical shaft, extending to the extremities of the mining level. Inter-level spacing is the perpendicular distance between two consecutive level stations underground. Further development is done at set intervals along the haulages towards the mineralised zones in the form of crosscuts. For secondary development, an inclined excavation that connects two levels is established, referred to a raise or winze, depending on the upwards or downwards direction of the development.

The SGM is employed for a deeper mining approach and offers various advantages, the critical one being increased safety. A noticeable characteristic of the SGM method is that mining from the raises is advanced in only one direction at a time, which is directed towards the stabilizing or regional pillars. This SGM mining sequence eliminates the creation of remnant pillars reducing the risk of seismicity.

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13.1.3Open Stoping

While Tshepong North business plan is based primarily on the SGM methodology and sequencing, there are sections of the mine that are operating using the breast, undercut and open stoping mining methods.

Minor amounts of the B Reef that do not exceed 40% of the on-reef mined per annum, are extracted as an open stoping mining operation. Reason for mining at open stoping is as a result of the erratic nature of the channel width and the support design specific to B reef mining. This mining method is practised, without much reliance on the other operating mining sections, and based on its location, poses a low risk to geotechnical considerations.

13.1.4Breast Mining

A key feature of breast mining is that the mine design includes pillars in the stoping areas that are designed to cave in a planned and controlled manner. These pillars are referred to as crush pillars and the dimensions of the pillars are determined by the geotechnical properties of the host rock. The use of crush pillars minimises the risk of unpredicted collapse of stoping areas. These collapses can compromise the safety of mining operations and may lead to permanent closure of stoping panels or sterilisation of ore.

The breast mining method has consequently evolved into the SGM.

13.1.5Integrated Approach

The differences of the reef formations and mining conditions at the respective shafts have led to the application of an integrated mining method approach. The objective of the adopted mining methods is aimed at the safe and profitable extraction of the Mineral Reserves, while reducing the occurrence of large seismic events.

13.2Mine Design

The mine design strategy aims at maximising the safe extraction of ore, while minimising the risk of geotechnical failures, which can result in operational disruptions and dangerous working conditions. The Basal Reef is modelled and designed across Tshepong North. In addition, Tshepong North Mine also considers the B Reef for design and planning.

Both, the Basal and B Reef horizons have been subject to faulting and intrusions by igneous dykes and sills that cut across the reefs. The most significant form of control at Tshepong North for rockfalls and rockbursts is the systematic modelling and design processes. Dip stabilising, bracket and strike pillars are considered for an integrated support system. The central raise line maintains stability, during stoping operations, using support packs. Additional in stope net support is also done on both Basal Reef and B reef which consist of a steel net installed on the stope face as well as the advance strike gullies All footwall development is is also supported on the face and side walls to prevent falls of ground.

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Figure 13-1: Schematic Representation of the SGM Sequence

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The occurrence of geological faults is also a source of groundwater intersections during mining operations which may lead to production delays, geotechnical risks, and the potential of flooding. Depending on the geology of the dyke or sill, a change in the mining direction may be required, or as in the case of low-risk scenarios the Rock Engineering department may suggest a safety and support strategy to mitigate the associated geotechnical risk. A change in mining direction may result in Mineral Resource losses, or an increase in dilution.

Based on the latest geological structure model and the SGM method the geotechnical team design a suitable pillar layout based on modelling results. A detailed mine design and schedule is done based on the pillar design taking cognisance of uneconomical areas which are excluded on macro scale. This design and schedule are the basis of the mine plan and the declared Mineral Reserves.

A mine design that is sufficiently informed, with geological data, is progressed to the mine planning phase. Mine planning is done on a macro scale as well as on a micro scale. On a macro scale, the material below cut-off is excluded from the mining model. On a micro scale, the mining model is then subject to constraints that are applied because of the geotechnical design and other limitations.

The geotechnical modelling is driven by the most recent information from mining operations, which ensures that the model is an accurate representation of the current operational conditions.

Development is done by either mechanised, mechanical or conventional method depending on the most suitable method for the specific requirements. The Tshepong North Mine is essentially a conventional mine design with trackless mining in the twin decline.

Mining production is accessed through underground excavations, developed as haulages and cross cuts. Crosscuts are primary development, in the direction of the mine workings. Inclined secondary development is used to access the reef contact, and advanced from the position of respective crosscuts. Ore is extracted from stoping panels established from the inclined development.

13.2.1Mine Design Parameters

Mine design is done internally, with the mine designs for the Basal Reef and B Reef horizons done separately, using the DatamineTM software. The geological models, and the geotechnical parameters formulated by the Rock Engineers, are used as a basis of the mine planning process. The mine design parameters used for Tshepong North Mine, are shown in Table 13-1 and Table 13-1, respectively.

Table 13-1: Tshepong North Mine Design Parameters


Parameter	Unit	Value
Regional Stability
Dip stabilizing pillar dimensions
Strike span	m	v
Dip span	m	180
Strike stability pillar spacing¹	m	N/A
Access haulages middling to reef	m	90
Primary Development
Advance	m/month	28
Crosscut spacing	m	200
Secondary Development
Advance	m/month	N/A
Stoping Parameters
CW < 80cm	m	105
CW > 80cm	m	120
Economic Parameters
Cut-off grade (planning)	cmg/t	800
RD		2.72

Notes: 1. Pillar spacing is measured skin to skin.

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13.3Geotechnical Considerations and Seismic Monitoring

Tshepong North maintains working geotechnical and Isopach models, to manage and control seismicity risk. The geotechnical and Isopach models for Tshepong North take the latest geological structural model and the SGM method into account to design a suitable pillar layout.

The purpose of the pillar designs, regardless of the pillar type, is to customize them to the prevailing mining conditions, with the objective of making the mine design safe, practical, easy to implement, and profitable. These pillars include dip stabilizing, bracket and strike pillars. The details of the pillar design can be found in Table 13-1 Tshepong North Mine. The dimensions depicted for the pillars are standard and are adjusted depending on planned bracketing of geological structures or if patches of low value reef are encountered.

The Rock Engineers follow the following geotechnical modelling and approach:

•evaluate the principal stress directions using seismic source mechanisms and update the input parameters for numerical modelling;

•using seismic source mechanisms, delineate planar features to confirm and/or detect the position and orientation of geological structures;

•confirm the expected ground motion produced by large, potentially damaging seismic events, and calibrate the Ground Motion Prediction Equation; and

•monitor mine-wide seismic activity and test each geotechnical region for deviation from the expected co-seismic rockmass response, which tests the release of seismic energy.

The geotechnical stress model is also used to manage and monitor the occurrence of seismic hazards. Seismic hazards are categorically measured as per mine planning cycles of short, medium and long term. Events for the last 100 - 200 days definitively estimated, to accurately determine the intermediate probabilities of occurrence. The behaviour of identified medium term events are then monitored daily. Alarms are raised, and people are evacuated in the event of a predicted or anomalous seismic pattern is identified and people are removed from the specific danger areas.

Tshepong North Mine uses an Integrated Seismic System supplied by Institute of Mine Seismology to record seismic events on the property.

The seismic systems consist of 17 three-component geophones. The digital seismic data is transmitted from the underground seismic stations through to the surface monitoring stations via manual and automated recording systems, based on available infrastructure at the mine. The data is recorded continuously and reported on an annual basis.

13.4Geohydrological Considerations

Apart from the geotechnical risks that can be caused by the existence of geological structures, the presence of water and gas also pose risks to Tshepong North. The geotechnical models are used as a basis to manage and monitor the occurrence of ground water and gas intersections. Cover holes are drilled in all flat development ends to identify water or gas. Water or gas intersections are plotted in a 1:200 survey sheet plan and section view, with a detailed 1:100 profile description. These intersections are plotted against a stope plan indicating the geology, structural features, reef contours, pillar layout, faults with associated losses or gains, reef elevation, grade and channel width. These geospatially refenced plots articulacy help the mining team execute the mine plan, in relation to the operation’s geotechnical requirements and assist in the early detection of the presence of water or gas.

Daily management of influx water is handled through a series of diversion strategies aimed at re-directing and controlling the flow, temperature regulation, and re-circulation of water. The water strategies at Tshepong North are supported by the Integrated Waste and Water Management Plan (“IWWMP”). Both Tshepong North and South maintain graphical and numerical databases of the operations geohydrological conditions.

Water reticulation around the mine has been designed to maximise water re-use minimise the amount of water pumped to surface. The 76-level pump station is used to transfer water from various levels into small inter-level dams and eventually into the mine’s respective main settling dams.

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13.5Mine Plan Development and Schedule

Tshepong North Mine has significant Mineral Reserves to maintain a long-term mine life, however, extraction of ore from isolated blocks of ground will become more important as the life of mine progresses, but volumetrically these Mineral Reserves are not significant.

The preferred SGM mining method is dependent on development staying ahead of the mining front, so that accurate geological information is gathered and included in final designs before mining commences. This also enables, planning and scheduling activities to be accurately sequenced, which leads to better planning, safer working conditions, and improved profitability.

At Tshepong North Mine, the Mineral Reserve plan and scheduling originates within the use of the Life of Plan. The 3.76Mt of Mineral Reserves are included in the plan and are fully accessible through the existing infrastructure at the Tshepong North Mine. The mining rates used in determining the Mineral Reserve plan are based on the current and expected operational performance, notwithstanding any unforeseen underground mining constraints. The Mineral Reserve for the operation is planned for five years, with a planned mining rate averaging at approximately 0.753ktpa (milled tons) over the period. The extent of the Tshepong North Life of Mine plan, which includes Inferred Resources, is shown in Figure 13-2. The milled ore and gold recovered for Tshepong Mine Mineral Reserves are presented in Figure 13-3 and Figure 13-4, respectively.

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Figure 13-2: Tshepong North LOM Plan

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Figure 13-3: Graph of Tshepong North Mineral Reserve Plan – Tonnes and Grade


Figure 13-4: Graph of Tshepong North Mineral Reserve Plan – Gold Produced (kg)

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13.6Mining Rates

Mining rates are based on current and expected performance depending on underground conditions and constraints. Dilution is included in the production plan mainly from external waste sources from the stoping operations, but allowances are also made for dilution occurred in the ore flow process. The Mineral Reserve plan considers the planned and available working areas, inclusive of the mine’s current infrastructure capacity.

13.7Grade and Dilution Control

The selected SGM mining method is planned and designed to better support recovered grade because of the improved selectivity, flexibility, and reduced off-reef mining. Mine grades are currently decreasing as mining moves away from the central pay-shoot and the planned Sub 75 Capital Project is aimed at alleviating this risk.

Ore grade and dilution control is done using a Quality Index monitoring tool. This Quality Index considers key parameters including Mine Call Factor, stoping width, proportion of ore lock-up, and an on-reef index (percentage of On-Reef vs Off-Reef mining due to geological features such as faults and dykes, etc.). During the mine design and planning process, external dilution control is implemented by applying an adapted mine recovery factor.

Operationally, grade and dilution control are mostly achieved through improved drilling (marking sticks used on undercut mining) and blasting practices and compliance to blasting barricades on stopes >350. Drilling accuracy is achieved by holes that are drilled parallel, aimed at being correctly burdened and that are within the stoping limits. This ensures consistent and economic rock breaking, without dilution.

Tshepong North Mine also adopts electronic blasting technology consisting of an integrated electronic system, which allows for precision timing and improved control of rock breaking. This technique controls stoping width and protects the integrity of the footwall and hanging wall, aimed at minimising dilution.

13.8Mining Equipment and Machinery

There are various machinery and equipment used at Tshepong North, depending on the type of mining or development activity. The following equipment can be found at the frontline of mining production:

•haulages and associated development: Hydro-powered (“HPE”) drill rigs are used for underground excavations and tunnelling. These rigs are preferred as they are versatile and capable of angular, horizontal, and vertical drilling;

•production drilling in stopes: Two types of drilled holes are used in a stoping panel, namely production drilling and pre-conditioned drilling. Pre-conditioning is a methodology aimed at transferring the stresses away from the stope face, therefore reducing the potential for face burst damage. Pre-conditioned holes are drilled longer than production holes and are blasted with the production round. Equipment used for this type of drilling is compressed air hand-held drills;

•raise boring: Is a drilling technique used for ventilation development purposes and ore passes. Raise boring and control mechanisms are currently operated via control modules connected through the mine’s underground and shaft communication networks, conducted on surface by a contractor. The benefits of this allow personnel to be removed from dangerous underground workings and have the upside of productivity achieved through automation;

•rock movement: Ore from the stoping ore passes is loaded directly into hoppers from the box-front chutes and then trammed to the shaft to the inter-level tips, then transferred to the main loading bins for hoisting to the surface. Waste rock from development operations is loaded into similar hoppers and trammed and hoisted in the same manner as the ore movement but is done using in a dedicated waste system to prevent diluting the ore grade;

•material movement: Tshepong North uses the Battery charged monotrains and to a lesser extent diesel monotrains. The monotrain was partially adopted at Tshepong North, decline operations due to their consistent maintenance of speed in steep and changing gradients, while allowing for varying weight bearing capacities, works as efficiently in undulating floor conditions, and is almost impossible to de-rail due to the L-shaped sliding beam design.

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•Small articulated dump trucks, graders, and crawler mounted bulldozers for dump, waste and marginal ore movement also support the Tshepong North Mine operations.

13.9Ore transport

The blasted ore from the stoping panels is moved with winch-operated scrapers along gullies to ore passes where it gravitates down to the loading boxes in the footwall crosscuts below the stopes. The ore is discharged into rail hoppers and transported, via front-driven locomotives, to dedicated inter-level transfer systems that gravity feed to the main silos. Once hoisted up the main vertical shaft to surface, the ore is transported to the Harmony One Plant via conveyor belt.

13.10Mining Personnel

Tshepong North is labour intensive, with the mine being supported by over 3,737 employees, with 91% being permanent staff and the remainder contractors.

The underground mining operations uses an 11 day fortnight shift system, operating a 3-shift cycle per day. The underground work force is essentially split into two categories that are either involved in production activities or they provide supporting services required underground. Production activities are directly related to the mining of ore and non-production personnel provide supporting services such as safety, engineering functions, maintenance, decline conveyor management and underground store controls. The mining personnel for Tshepong North is presented in Table 13-2.

Table 13-2: Tshepong North Mine Mining Personnel


Labour Requirement			No. of Employees
Services			378
Engineering			810
Mining			2 138
Contractors			411
Total Employees			3 731

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Figure 13-5: Tshepong North Shaft and Underground Infrastructure

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Tshepong North, Free State Province, South Africa

13.11Commentary on Mining Methods

The SGM mining method is the main mining method utilized at Tshepong North and is appropriate for the reef characteristics and the mine depth. The mine design, planning and scheduling for the mine is developed using the DatamineTM and DeswikTM geological software, respectively, considering the geotechnical model and related parameters.

The main geotechnical and geohydrological risks at Tshepong North include the presence of gas, ground water and seismicity, which are managed through the integrated monitoring systems, and incorporated into working mining models that inform daily mine planning decision-making.

The mining rates, machinery and equipment, ore transport, grade and dilution control, and labor resourcing and optimization are driven by the mine schedule and improvement initiatives.

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Technical Report Summary for

Tshepong North, Free State Province, South Africa

14Processing and Recovery Methods

Section 229.601(b)(96) (14) (i-iv)

All ore mined at Tshepong North is processed at Harmony One Plant located west of Welkom (Figure 3-1). Harmony One Plant is Harmony’s largest gold processing plant and processes underground ore from multiple shafts, as well as surface ore from nearby mine waste facilities. The plant was commissioned in 1986 and comprises three independent modules, each consisting of four feed silos, two ROM mills, two conventional thickeners, cyanide leach, carbon in pulp (“CIP”) adsorption, elution, zinc precipitation and smelting. The plant CIP process reflects the technology which was current at the time of construction and has been operating with no significant challenges and target metallurgical recoveries have been achieved.

14.1Mineral Processing Description

The processing flow sheet is presented in Figure 14-1.

Ore delivered to the plant is fed from the concrete silos via two mill feed conveyors through vibrating feeders directly into the ROM mills. Fully autogenous (“FAG”) milling is a milling process in which the entire ROM ore stream is fed directly into the mills and where the grinding media is generated within the mill from suitably sized pieces of ROM ore itself. The average feed rate to the mills is 65tph. The milling circuit consists of two single stage ROM mills that are controlled on maximum power for optimum milling. Each ROM mill is 4.27m in diameter and 10m in length and grinds the ore to 75% - 90% passing minus 75 microns.

Milling is followed by a conventional gold leach process (cyanidation).The cyanidation process is one of the most utilized methods for the recovery of gold from auriferous ores. The use of cyanide leaching for gold recovery is based on gold’s properties, mainly its solubility (ability to dissolve) in cyanide solutions. Once the gold is dissolved into the cyanide solution it has a higher ability to adsorb (attach) onto activated carbon through the application of carbon in pulp (“CIP”) technology.

The loaded carbon then enters the elution columns, which are high pressure vessels that circulate the loaded carbon extracting the gold. The gold will “de-absorb” from the activated carbon and attach onto stainless-steel wool by means of electrowinning. The CIP circuit makes use of gravity flow of slime between the consecutive counter-flow stages to recover recirculate the activated carbon back into the system.

Following this process, the cathode steel wool is smelted (induction furnaces) after drying in the calcining ovens. The doré bars are then dispatched to Rand Refinery Limited, located near Johannesburg in Gauteng Province.

The tailings residue is pumped from the plant to one of two TSFs, the FSS8 West/East complex, which is the biggest facility with a total deposition capacity of 320,000tpm. The second TSF is the FSS2 facility with a capacity of 160,000tpm. The combined capacity of the two TSFs are 480,000tpm which is well above the plants designed capacity thus, creating some flexibility in the deposition strategy.

Both TSFs are conventional day wall paddock facilities with a fixed penstock tower arrangement that would be the primary means of draining excess water from the facility which is pumped back to the plant to be used in the process again.

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Technical Report Summary for

Tshepong North, Free State Province, South Africa


Figure 14-1: Schematic Flow Diagram of the Metallurgical Process

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Tshepong North, Free State Province, South Africa

14.2Plant Throughput, Design, Equipment Characteristics and Specifications

The Harmony One Plant has a steady state design capacity of 390ktpm with its conventional CIP flowsheet. The design parameters and equipment specifications are presented in Table 14 1. The Harmony One plant is in good working condition and the equipment is also in good order with audits done on regular bases to check the operating performance of the plant.

Table 14-1: Key Design Parameters and Equipment Specifications


Process	Parameter	Unit	Value
Overall Plant	Recovery	%	95
	Availability	%	100
Milling	Throughput ROM	t/hr	90 -100
Densification	Desired pH	pH	>10.5
	Desired Density	g/cm3	1.50 - 1.55
Leaching	Residence Time	hr	27
Acid wash and elution	Elution Temperature	°C	130 (Ambient)

14.3Energy, Water, Process Material and Personnel Requirements

14.3.1Energy

The average monthly power consumption is 12,064,464KWh. (Available all the time although load curtailment)

14.3.2Water

The average monthly water consumption is 20,655kL. (Available all the time)

14.3.3Process Material

The reagents and their consumption rates are presented in Table 14-2.

Table 14-2: Harmony One Plant Consumables


Equipment	Unit	Value
Lime	tpm	341.00
Flocculant	tpm	0.71
Cyanide	tpm	9.06
Carbon	tpm	190.00

14.3.4Personnel

The personnel is provided in Table 14-3.

Table 14-3: Harmony One Plant Personnel


Personnel			No.
Services			57
Engineering			77
Metallurgy			138
Contractors			245
Total			517

14.4Commentary on the Processing and Recovery Methods

The metallurgical process is a well-tested CIP technology which has been in operation at the Harmony One plant since 1986. Recoveries used in the business plan were based on historic performance. The methodology applied considered the historical metallurgical recovery (18-month period) (Figure 14-2) for the relevant ore sources at the plant.

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Technical Report Summary for

Tshepong North, Free State Province, South Africa

It should be noted that since the Harmony One plant processes ore from multiple sources a metal accounting operating procedure is required to manage the input feed delivered to the plant and gold output produced. A basic overview of the procedure is as follows:

•each operation delivers ore to the plant and is booked against each source;

•a delivery sheet reflects each shaft/operations figures; and

•from total ore processed, each shaft/operations equivalent proportion of gold is determined out of the monthly full gold produced.


Figure 14-2: Graph of Tshepong North Historical Recovery Factor (18 month actual)

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Technical Report Summary for

Tshepong North, Free State Province, South Africa

15Infrastructure

Section 229.601(b)(96) (15)

The proximity of Tshepong North and South allows for the integration of infrastructural requirements by using the excess hoisting capacity and underused infrastructure available at Tshepong North. This has also enabled the debottlenecking of Tshepong South’s infrastructure. Tshepong North have adequate access to the infrastructure required to meet the planned Mineral Reserve production schedules.

15.1Surface Infrastructure

The surface infrastructure associated with Tshepong North is presented in Figure 15-1, whilst Google Earth images for each of the shafts and Harmony One Plant are presented in Figure 15-2 and Figure 15-3.

The Tshepong North’ mining area is well developed in terms of access and mining-related infrastructure. Access to the shafts is via well-maintained roads. Adequately maintained gravel roads is used to access other areas of the mine such as the explosives magazines, sewage works, slimes dam and the evaporation ponds.

The infrastructural layout includes hoisting facilities; logistical support for core handling, sampling, and transporting; ore and waste facilities; tailings and leaching infrastructure; roads; water and power supply; ventilation and refrigeration systems; stores and workshop support; electrical supply; offices; housing and security.

15.1.1Ore and Waste Rock Storage Facilities

Ore mined at Tshepong North is hoisted at Tshepong North Shaft where it is stored in silos on surface before being transported by rail to the Harmony One Plant for processing (Figure 15-1 and Figure 15-3). Ore is stored in silos located at the plant prior to processing.

Waste at the Tshepong North Mine is hoisted separately via the skips and stored at the waste rock dump on the Northern side of the shaft. Sufficient storage is available for the current Mineral Reserve profile.

15.1.2Tailings Storage Facilities

Harmony One Plant pumps tailings as slurry to two TSFs namely FS2 and St Helena No.4, located to the south of the plant. All TSFs and are currently owned and operated by Harmony.

The current Mineral Reserve plans for Tshepong North require a total collective placement of approximately 0.77Mt of tailings. The capacity remaining in the two TSFs is sufficient until 2024. Currently the project department is urgently looking at various options to ensure that Harmony 1 Plant has deposition capacity post June 2024. Some of these options entail to keep depositing on some of the existing tailings dams in order to buy time until the new tailings dam will come on line in July 2026. Even if it means down scaling the operations at Harmony 1 Plant to only accommodate the reef and very little waste. The option that is currently investigated is to convert St Helena 4 tailings dam to a cyclone dam that can take 200,000 tons per month until July 2026. The new tailings facility will be located in the area of North 1 and 2 tailings facilities. The TSF sites have full engineering records including design, construction, operation, and maintenance plans.

15.1.3Rail

A railway line which traverses the Tshepong North Mining Right area is used to transport hoisted ore to the Harmony One Plant (Figure 15-1).

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Technical Report Summary for

Tshepong North, Free State Province, South Africa


Figure 15-1: Tshepong North Surface Layout and Infrastructure

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Technical Report Summary for

Tshepong North, Free State Province, South Africa


Figure 15-2: Tshepong North Detailed Surface Infrastructure

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Technical Report Summary for

Tshepong North, Free State Province, South Africa


Figure 15-3: Harmony One Plant Detailed Surface Infrastructure

Source: Google Earth Image Date: September 202

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Technical Report Summary for

Tshepong North, Free State Province, South Africa

15.2Underground Infrastructure and Shafts

The Tshepong North shaft and underground infrastructure is schematically depicted in Figure 13-5. The underground workings are accessed and mined via four vertical shafts and a sub-vertical shaft and a decline shaft.

At Tshepong North, the main vertical shaft system extends from surface to 71 level, at 2,161m below surface. The ventilation shaft system extends to 2,148m below surface and the sub 66 decline shaft system extends from 66 level to 77 level.

There are four refrigeration plants on surface, serving the Tshepong North Mine. Bulk air is supplied via the Tshepong North shaft to an inter-level refrigeration system on 63 level, assisted by cooling cars and coils. Two underground booster fans will be installed on 66 Level, to increase the return air capacity to the decline section.

15.3Power and Electrical

Power is supplied by Eskom. Tshepong North power supply is designed to satisfy the planned Mineral Reserve production and service requirements. Main power supply is managed and distributed via electrical sub-stations located adjacent to the respective shafts (Figure 15-2).

Power lines traverse the mine property to connect the shafts, reduction works and hostel complexes.

In addition, Tshepong North have an onsite emergency power generator system, sufficient to support the critical mining and mineral processing activities in case of emergencies. The operation has capacity to supply of 35MW, however currently only 31MW is utilized. Currently no ore processing is undertaken at the shaft.

15.4Water Usage

Tshepong North has four underground water dams on 66 level and 69 level. Water for the use of dust suppression, footwall and sidewall treatment is re-purposed at the Tshepong North Mine.

As the Sedibeng municipality water supply is reliable, there is no dedicated surface water supply storage. A water storage dam, with capacity of +- 8ML, is in the process of being built at surface.

The storage facilities have sufficient water to supply water to the operation for up to 72 hours if the bulk water supply was interrupted.

15.5Logistics and Supply

The procurement of supplies and equipment are handled centrally, via Harmony, and then delivered to Tshepong North.

Harmony operates its own rail system which connects the shafts, reduction works, shaft stores, explosives magazine and the mine workshops. This system is used to transport ore between shafts and to transport consumables between the surface stores to the respective locations, as required. It is also connected to the regional Transnet railway system, which transports ore to the Harmony One Plant. All capacities for the shaft requirement to ensure optimum production as planned is provided for.

15.6Commentary on Infrastructure

The operational infrastructure including road, rail, offices, security services, refrigeration, Compressors, pump stations, chairlift, water and power supply is adequate to satisfy the Tshepong North Mineral Reserve plan. Operations are powered by electricity from Eskom. Overall, Tshepong North are well-established with sufficient logistical and infrastructure support for the existing and planned mining operations.

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa

16Market Studies

Section 229.601(b)(96) (16) (i-ii)

Gold is traded in a variety of markets/exchanges both in physical form through over the counter (“OTC”) markets, bullion banks and metal exchanges etc., and through passive investments such as exchange traded funds (“ETFs”), which are based on gold prices and units representing physical gold which may be in paper or dematerialised form. Demand is driven by the jewellery market, bar and coin, use in technology, ETF’s and other financial products, and by central banks. An overview of the gold market is given in the following sections based mainly on data from the World Gold Council and GoldHub websites.

16.1Market Overview

Unlike almost all mineral commodities, the gold market does not respond the same way to typical supply and demand dynamics which are founded on availability and consumption, but rather on global economic affairs, particular those of the major nations, industrial powerhouses and economic regions, such as the Eurozone. The gold market is affected by government and central bank policies, changes in interest rates, inflationary or deflationary environments and events such as stocking and de-stocking of central reserves. It is also largely affected by global events such as financial crises, geopolitical trade tensions and other geopolitical risks. Price performance is linked to global uncertainty prompted by the prolonged Russia-Ukraine war (GoldHub, Accessed July 2022). It is an asset that can preserve wealth and deliver price outperformance in an uncorrelated way and that makes it extremely attractive.

The Gold Market and Recent Developments

The Gold Market Demand had returned to pre-COVID levels during the third quarter of 2022, with total demand at 1,181t; 28.0% higher when compared to the third quarter of 2021, while gold supply increased by a marginal 1.0% on an annual basis to reach 1,215t.

The main contributing factors of the higher gold demand during the third quarter of 2022 include:

•Jewellery consumption reached a robust 523t, recording a 10.0% increase year-on-year, despite the deteriorating global economic backdrop. Furthermore, on a year-to-date (ytd) basis gold demand was slightly firmer at 1,454t, signifying a 2.0% increase.

•Investment demand was 47.0% lower on an annual basis at 124t, reflecting weak sentiment among some investor segments. The 36% growth in bar and coin investment (to 351t) was insufficient to offset 227t of ETF outflows. Over-The-Counter (OTC) demand decreased significantly during the third quarter of 2022, confirming weak investor sentiment in ETFs and futures markets.

•Central Banks continued to invest in gold, with purchases reaching an estimated quarterly record of nearly 400t according to the World Gold Council.

•Technology Demand decreased by 8.0%, year-on-year, as the global economic downturn had a negative impact on consumer demand for electronics.

Moving into the second quarter of 2023, gold prices are gaining a lot of momentum in line with the global banking crisis and uncertainty surrounding the Federal Reserve Bank. Contagion risks from financial market fears have allowed the safe-haven appeal of gold to drive a bullish market to the cause but this can be fleeting for a quarterly period. Increased volatility has been another contributor to gold.

Markets reacted recently to the upside of the U.S. economy (which is doing better than previously thought), allowing the Fed room to hike rates further in its fight against inflation. The latest market expectations point to rates staying higher for longer with any rate cuts expectations moved to the middle of Q1 next year (2024). This is in stark contrast to expectations seen 2-3 months ago when interest rate cuts were predicted for late Q3/early Q4 this year (2023).

16.2Global Production and Supply

Gold production and supply is sourced from existing mining operations, new mines and recycling.

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Technical Report Summary for

Tshepong North, Free State Province, South Africa

16.2.1New Mine Production

China remained the largest producer in the world and accounted for approximately 10% of total global production in 2022 (Gold.org, Accessed 2023). Overall, global mine production reached 3,628t in 2022, slightly higher when compared to the 3,581t recorded in 2021, and the second annual increase in production recorded since 2020. The improvement in mine production over the past two years can mainly be attributed to a mining industry free from COVID-19 disruptions and slowdowns. In 2022, some of the major producing gold countries in the world were China (375t), Russian Federation (325t), Australia (314t), Canada (195t), United States (173t), Ghana (127t), Peru (126t), Indonesia (125t) and Mexico (124t), followed by Uzbekistan (111t) and Mali (102t). South Africa produced 92.6t in 2022; lower when compared to the 113.6t recorded in 2021 (Gold.org, 2023).


World Gold Council: Mine Production - Major Gold Producing Countries Ranked 2023

16.2.2Recycling

Global annual supply of recycled gold increased marginally to 1,141t in 2022, but still remained below 1,293t recorded in 2020 and 30% below the all-time high recorded in 2009. Recycling supply experienced a modest increase in 2022 even though a record annual average gold price was recorded for the year. India and China are considered as key role players in the recycling market. In the first quarter of 2023, the supply of recycled gold increased to 310.4t, signifying a 5% increase on a year-on-year basis, and can mainly be attributed to higher gold prices (Gold Demand Trends Q1 2023, Gold.org, May 2023).

16.3Global Consumption and Demand

Annual global gold demand (excl. OTC) increased by a significant 17% to 4,706t in 2022, however during the first quarter of 2023, demand was 13.0% lower at 1,081t on a year-on-year basis. Demand from India decreased as consumption in both investment and jewellery were lower, driven by a volatile and record-high gold price. On the contrary, domestic consumption from China increased, driven by robust income growth and improved domestic economic activity during the first quarter of 2023. While continued improvement is expected in markets post-COVID in 2023, demand continues to face challenges of slowing global economic growth along with persistent high inflation levels in several markets.

16.3.1Jewellery

Total annual global jewellery consumption decreased from 2,148t in 2021 to 2,090t in 2022, amid weaker gold demand from China and India. In the first quarter of 2023, demand was relatively stable when compared to a year ago, however, a significant quarter-on-quarter decrease of 24% was recorded as high and volatile gold prices discouraged jewellery demand (Gold Demand Trends Q1 2023, Gold.org, May 2023).

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Technical Report Summary for

Tshepong North, Free State Province, South Africa

16.3.2Investment

A positive global gold demand and exchange-traded funds (ETF’s) are expected to maintain a notable upside potential from volatile interest rate conditions and recession risk. According to the World Gold Council, global bar and coin investment increased by 5% on a year-on-year basis during the first quarter of 2023, exceeding 300t for the third consecutive quarter and the first time since 2013.

A total annual gold investment demand of 1,127t was recorded by the World Gold Council for 2022, a 12% increase when compared to the annual value of 1,004t recorded in 2021. On a quarter-on-quarter basis, total investment demand increased by 9% to reach 274t in the first quarter of 2023. Furthermore, global physically-backed gold ETFs was pressured by weak investor interest, recording a net outflow of -28.7t during the first quarter of 2023, significantly lower when compared to the 270.7t recorded during the first quarter of 2022. In addition, ETF outflows recovered some of its losses and increased during for the first time in 11 months in March 2023 (Gold Demand Trends Q1 2023, Gold.org, May 2023).

Gold prices were further supported by a positive investor sentiment in the institutional segment during March 2023 as a result of an unstable banking industry and positive inflows into ETFs.


World Gold Council : Total Gold Supply & Demand

16.3.3Currency

Gold holds an inverse relationship with the USD and is usually traded relative to its USD price. During the current period of uncertainty, and the rising influence of Chinese currency, central bank asset managers may likely increase their interest in gold as a result. This has been a prominent trend since the economic downturn in 2008.

Future performance of the gold market is expected to be supported by investment demand (a need for effective hedges and a low-rate environment) and will be driven by the level of risk observed in the recovery of the global economy from the effects of COVID-19, which may offset any lag in recovery of consumer demand.

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Technical Report Summary for

Tshepong North, Free State Province, South Africa

The USD currency and Gold

The inverse relationship between the value of U.S. dollar (USD) and that of gold is one of the most discussed about relationships in currency markets. The U.S. Dollar (USD) is the internationally accepted currency and most of the international transactions take place in Dollar/USD equivalent. The major reason behind the relationship of gold and the USD, is that gold is used as a hedge against the adverse exchange value of the USD. As the dollar’s exchange value decreases, it takes more USD to buy gold, which increases the value of gold. Two other factors linked to the USD, or the strength of the USD is inflation and interest rates. Inflation has remained high throughout 2022 and well into 2023 in the U.S. and in many other countries.

Central banks like the Fed, ECB, and BoE have already hiked rates to try and bring inflation down. Rates will continue to rise while inflation remains high. High interest rates are generally seen as a negative for gold as a non-yielding asset, though high inflation is usually seen as a positive for gold as a hedge against inflation.

16.4Gold Price

16.4.1Historical Gold Price

In early August 2020, the London Bullion Market Association (“LBMA”) gold price reached historical highs and remained relatively high for the rest of the year (Figure 16-1).

The London Bullion Market Association (LBMA) gold price reached a record annual average price of USD1,800.09/oz in 2022. The upward trajectory continued into the first quarter of 2023 where gold prices averaged 10% higher at USD1,890.2/oz on a quarter-on-quarter basis. According to the World Gold Council’s May 2023 Gold Market Commentary, “Gold prices remain rangebound, having failed to establish a foothold above the psychologically important USD2,000.00 level. It appears that over the past year, gold has been more influenced by the US dollar than on average, as well as taking its cues from the 2-year US TIP yield rather than the more commonly associated 10-year.”

16.4.2Forecast Gold Price

The minimum and maximum consensus gold price range for the year 2022 to year 2024 is presented in Table 16.1. The long-term gold prices are considered from year 2025 onwards by the QP. Forecasts as advised from various financial institutions show that gold is expected to trade in a range of USD1,804/oz - USD1,901/oz, for the period 2022 to 2025 with a long-term outlook of USD1,521/oz.

The gold price forecast of USD1,582/oz, used in the Tshepong North Mineral Reserve cashflow, is considered conservative by the QP if corroborated against a consensus gold price outlook of USD1,837/oz (Table 16.1).

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Technical Report Summary for

Tshepong North, Free State Province, South Africa


Figure 16-1: Graph of Annual Gold Price History – ZAR/kg

Table 16-1 Consensus View of Forecast Gold Price USD/Ounce


Institutions	2022	2023	2024
World Bank: Development	1 801	1 900	1 750
BMO Capital Markets	1 802	1 925	1 750
Scotiabank	1 803	1 904	1 900
Nedbank	1 817	1 897	1 970
Fitch Solutions	1 800	1 800	1 600
S&P Global	1 804	1 889	1 889
Australian Government	1 801	1 906	1 839
TD Economics	1 802	1 985	2 000
Average	1 804	1 901	1 837

16.4.3Harmony Group Gold Hedging Policy

Harmony has a hedging policy which is managed and executed at Group treasury level on-behalf of its operating entities. The key features of the hedging programme are as follows:

•the policy provides for hedging (or forward selling) up to a maximum of 20% of expected gold production for a rolling 24-month period;

•the policy has no minimum quantity that should be hedged, and if an attractive margin above cost cannot be achieved (i.e., in a low gold price environment) then no hedges are entered into;

•Harmony enters into ZAR-denominated gold hedges for its South African operations (for the non-South African assets it enters into USD-denominated hedges);

•Individual mines do not enter into hedges in their own name but delivers bullion to Rand Refinery for refining on behalf of Harmony. Rand Refinery is one of the world’s largest single-site precious metals refining and smelting complex in the world. Rand Refinery refine all of Harmony’s gold to at least 99.5% purity, and acting as agent, sells the gold on the daily spot London fixing price and make payment to the Harmony two days later;

•gains and losses realised from the hedging program are accounted for at Group level and the financial benefit (or downside) is distributed amongst the operations proportional to their levels of gold sales; and

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Technical Report Summary for

Tshepong North, Free State Province, South Africa

•Harmony does its mine planning and financial forecasts based on the estimated future gold price provided by an external source (ETSA), but its year-end actual financial results reflect the received gold price inclusive of the impact of the hedging programme. Therefore, in theory, individual mines receive a hedged gold price for a maximum of 20% of its gold sales with the balance attracting the spot price

16.5Commentary on Market Studies

The factors which affect the global gold market are well-documented as are the elements which influence the daily gold price. The gold price recorded all-time highs during both 2020 and 2022, and although it has since moderated and retracted, the price remains well above the 5-year historical average.

The positive outlook for gold will likely be sustained. Key headwinds for gold are interest rate hikes, currently at near historically low levels, but continued geopolitical risk and underperformance of stocks and bonds will support gold (Gold Mid-Year Outlook 2022, Gold.org, Accessed 2022). The gold price has experienced weaker momentum in Q2 2022, but stabilised. The gold market is expected to remain supported, and prices elevated for the balance of the financial year running into FY2023.

Harmony has a relatively conservative gold hedging policy in place, and this is used to take advantage of the movements in the gold price to maximise the average gold price received, with the benefit of this hedging programme flowing through to Tshepong North.

16.6Material Contracts

As with all major businesses, Harmony and Tshepong North enters into a multitude of vendor agreements for the provisions of supplies and services. These agreements are entered into on a competitive basis and typically are of a medium-term duration all with clauses providing for periodic updating of pricing, annual (or other) renewal or termination.

Harmony has contractual vendor agreements with various service providers and suppliers. The most significant of these contracts currently in place to support Tshepong North are listed in Table 16-2.

All of the listed contracts are currently valid and in good standing. Terms, rates and charges of contracts are considered consistent with industry norms. Contract management processes are in place and resourced so that contracts re-tendered and/or renewed as they approach expiry.

Table 16-2: Material Contracts


Vendor Name			Nature of Service / Supply
Axis Mining & Construction cc			Underground Support services
Transnet Limited (t/a Spoornet)			Rail transportation of ore and waste
Genflo Mine Vacuum Systems SA (Pty) Ltd			Shaft Bottom Cleaning at Nyala Shaft
Bidvest Protea Coin (Pty) Ltd			Security services
Lesedi Drilling & Mining Company (Pty) Limited			Underground diamond drilling at Tshepong North

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Technical Report Summary for

Tshepong North, Free State Province, South Africa

17Environmental Studies, Permitting and Plans, Negotiations, or Agreements with Local Individuals or Groups

Section 229.601(b)(96) (17) (i-vii)

The South African Government has an extensive legal framework within which mining, environmental and social aspects of the industry are managed. Harmony and its Tshepong North Mine is primarily regulated and managed by certain principal Acts (as listed in Section 17.3) as well as corporate policies, management systems and certain industry-wide guidelines, including:

•Energy Efficiency and Climate Change Policy;

•Environmental Policy;

•Harmony Water Management Strategy;

•Biodiversity and Rehabilitation Position Statement;

•Socio-Economic Transformation Policy; and

•Corporate Social Responsibility Policy.

The latest sustainability policies and public environmental social and governance (“ESG”) performance and disclosure report(s) are available on the corporate website. Harmony has identified the environmental risks for the business and has strategies in place to manage the risks.

17.1Results of Environmental Studies

Tshepong North have prepared multiple environmental impact assessments (“EIA”) for regulatory approval, which under the current legal framework, require stakeholder engagement. The most recent EIA was undertaken in 2022. The results of the studies have been incorporated into the Harmony business planning process. The results of all the studies are too voluminous to include in this TRS and therefore the reader is directed to EMP PAR (Environmental Management Programme Performance Assessment) Harmony Tshepong, Matjhabeng and ARM(Reference Number FS 30/5/1/2/2/84MR).

Harmony is committed to maintaining good relationships with regulatory authorities, industries, communities, business partners and surrounding stakeholders.

17.2Waste and Tailings Disposal, Monitoring & Water Management

The process of mining and beneficiation produce significant waste, typically consisting of 1) solid waste in the form of waste rock and overburden, 2) liquid wastes in the form of wastewater and tailings slurry and 3) gaseous emissions such as liquefied petroleum gas.

Measures have been put in place for the handling and disposal of all hazardous chemicals (e.g., cyanide), hydrocarbons (i.e., hydraulic oils and diesel) and other chemicals to ensure the protection of human health and its potential impact on the environment.

Harmony recognises that responsible and effective waste management can positively reduce its environmental impacts and mitigate associated environmental liabilities. Waste management is thus a priority focus area. Internally, guidelines on mineral, non-mineral and hazardous waste materials are included in the environmental management systems (“EMS”) implemented at Tshepong North.

Tailings comprises of crushed rock and process water emitted from the gold elution process in the form of slurry once gold has been extracted. As tailings contain impurities and pollutants, they are placed in TSF engineered to contain them, in line with Harmony's tailings management programme and the Global Industry Standard on Tailings Management (“GISTM”).

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Technical Report Summary for

Tshepong North, Free State Province, South Africa

Harmony's overall tailings management strategy is to ensure robust, meticulous engineering and dam design, along with a continual focus on management of risks through layered assurance and oversight. The focus areas include, but are not limited to:

•freeboard control;

•water management;

•maintaining stability and the safety factor as advised by the engineer of record;

•erosion controls; and

•monitoring and control measures implemented to ensure continued compliance (including regular inspections, audits, and meetings on varying intervals with subsequent actions, minutes and reports).

As part of its mining, environmental and water approvals and licences, Harmony is required to implement monitoring programmes and plans to establish the operations impact on the environment. The compliance limits for the monitoring variable are included in the applicable EMPR(s), WULA(s) and environmental authorisations. The environmental monitoring implemented at Tshepong includes:

•ground and surface water monitoring

•biodiversity monitoring;

•waste classification and quantification;

•integrated waste and water management plan (“IWWMP”) updates;

•water balance reviews;

•licence and authorisation compliance reviews; and

•air quality (i.e., noise and dust) and greenhouse gas emissions ("GHG") monitoring.

A focus area during the next financial year will be on creating effective awareness and implementation of its waste and waste management procedures such as the IWWMP. This plan provides water conservation management measures to help reduce the demand for water from external and natural sources.

17.3Permitting and Licences

In respect of environment, the following national Acts and the regulations promulgated thereunder provide the regulatory framework for mine permitting and licencing in South Africa:

•Mineral and Petroleum Resources Development Act, 2002 (“MPRDA”);

•National Environmental Management Act, 1998 (“NEMA”);

•National Environmental Management: Waste Act, 2008 (“NEM:WA”);

•National Environmental Management: Air Quality Act, 2004 (“NEM:AQA”); and

•National Water Act, 1998 (“NWA”).

A summary of the status of environmental permits and licences issued at the effective date related to Tshepong North is presented in Table 17-1.

All relevant mining, environmental and water-use permits are in place that cover the environmental, archaeological, and hydrological components of the Tshepong Operation. All permits are audited regularly for compliance and no material risks to the operations have been identified.

There are applications submitted or being considered by the relevant authorities to ensure compliance and alignment with operations LOM requirements. To this end, Water Use Licence Applications were submitted / lodged in 2020 with DWS. Environmental Management Programme Amendments were submitted / lodged in 2019 with DMRE. Tshepong North are awaiting approval from the regulator at the effective date of this TRS. These pending environmental permits and licences do not pose a material risk to the continuation of the operation.

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa

Table 17-1: Status of Environmental Permits and Licences

Permit / Licence

Reference No.

Issued By

Date Granted

Validity

Environmental Management Programme

FS 30/5/1/2/3/2/1(84)EM

DMRE

April 16, 2010

LOM

Environmental Management Updated

FS 30/5/1/2/2/84MR

DWAFEC

Pending Approval Submitted in 2019

LOM

Water Permit 936B. Harmony. Free State Geduld Mines. Discharge of untreated effluents

B33/2/340/31

DWAFEC

April 2, 1981

LOM

Water Permit 870B. Harmony. Discharge of untreated effluents.

B33/2/340/25

DWAFEC

May 27, 1991

LOM

Water Permit 1214N. Free State Consolidated Gold Mine. Tshepong, Freddie’s and Phakisa shafts.

B33/2/340/12

DWAFEC

Not indicated.

LOM

Notes: DWAFEC - Department of Water Affairs, Forestry and Environmental Conservation, DWA - Department of Water Affairs.

17.4Local Stakeholder Plans and Agreements

Harmony strives to create sustainable shared value within the communities it operates. Local stakeholder plans and agreements are based on the results from socio-economic information, government development strategies and EIAs undertaken. The socio-economic development programme commits to:

•contribute to areas that will have the most meaningful socioeconomic impact on communities, namely infrastructure, education and skills development, job creation and entrepreneurial development;

•enhance broad-based local and community economic empowerment and enterprise development initiatives;

•facilitate socio-economic development in local communities by means of social and labour plan(s) (“SLP”) and corporate social responsibility programmes;

•support arts, culture, and sports and recreation; and

•build relationships based on trust within host communities.

In South Africa, mining companies are required to have a SLP, which forms an important component of Harmony's community investment plan. It sets out the Company’s obligation to develop and implement comprehensive human resource development programs, community development plans, housing and living condition plans and employment equity plans. The aim of the SLP is to ensure the uplift of the social and economic circumstances of local communities surrounding the mine. The SLP is a prerequisite to securing and maintaining a mining right, with progress required to be reported annually.

Harmony has budgeted to spend approximately ZAR155.6m (FY24) to meet its SLP commitments.

17.5Mine Closure Plans

Harmony makes provision for closure and rehabilitation both for accounting purposes and as required under the MPRDA. The statutory obligation for all environmental rehabilitation at Tshepong North is administered by the DMRE and requires the preparation of a closure plan, the development of a cost estimate, and financial assurance. The Company makes an annual submission to the DMRE setting out the cost of closure in accordance with the MPRDA and the regulations issued thereunder.

Harmony appointed Digby Wells and Associates (South Africa) (Pty) Ltd, independent environmental consultants, to review and update the Closure Cost Assessment for unscheduled closure associated with the Tshepong and Matjhabeng Mining Operations. The Matjhabeng Mining Operations is a Harmony operation, e located north of the town of Welkom in the Free State Province. The mine closure assessment was done in terms of regulation 53 and 54 of the MPRDA and in accordance with the requirements of NEMA. The closure cost as at 30 June 2023, was calculated to be approximately ZAR484.5m.

Harmony is required to make funding available in an amount equal to the cost of closure as determined under the MPRDA in the form of a trust fund and/or bank guarantees.

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa

Table 17-2: Mine Closure Liability


Area			Total Closure Cost (ZAR)
Western Holdings 5 Shaft			9,262,719
Eland Shaft and Freddies 6			17,607,193
Nyala Shaft			75,305,600
Tailings Dams - North			331,145,091
Tshepong South (Phakisa)			18,755,892
Tshepong North			39,819,418
Sable Shaft			5,478,213
Kudu Shaft			7,892,699
Sewage Treatment Plant			5,066,139
Floatation Plant			6,807,863
Grand Total			517,140,826

Table 17-3: Rehabilitation Assurance


Area	Trust Fund (ZAR)	Bank Guarantee (ZAR)	Total (ZAR)
Tshepong North and Matjhabeng Operation	2 830 511 252	—	2 830 511 252
Tshepong South (Phakisa)	Included in above
Total	2 830 511 252	—	2 830 511 252

17.6Status of Issues Related to Environmental Compliance, Permitting, and Local Individuals or Groups

Most of the required environmental authorisations are in place and only require amendments to be approved to reflect the planned infrastructure at Tshepong North.

17.7Local Procurement and Hiring

Harmony is committed to investing in the future of local communities beyond the LOM and not to only empower them, but also to mitigate the impacts its activities to ensure a positive legacy. The 2014 Mining Charter serves to guide the south African mining industry in socio-economic transformation. Local procurement (goods and services) and human resource management are key measures set under the Mining Charter and are reported on annually. Refer to the Company’s corporate website on updated information pertaining to its compliance to the Mining Charter.

Portable skills are developed internally as well as through expanded learning programmes, learnerships and other programmes opened only to operating communities. Local procurement is being supported where there is a skills shortage. Some of the portable skills training offered to its employees include but not limited to basic plumbing, electrical appliance repair, welding, catering and baking, sewing and clothing manufacturing.

17.8Commentary on Environmental Studies, Permitting and Plans, Negotiations, or Agreements with Local Individuals or Groups

Periodic inspections are conducted by the DMRE to verify compliance with applicable environmental laws, regulations, permits and standards. In addition, Tshepong North has implemented an EMS in line with the ISO 14001 standard. The EMS is audited on an annual basis by a third party and includes the needs and expectations of interested parties.

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa

As part of Harmony, Tshepong North conducts its operation based on policies and systems that are aligned to its corporate sustainable development framework. Although Harmony is not a signatory to the International Council on Mining and Metals or the UN Global Compact, these form the guiding principles of the framework. Harmony discloses its sustainable development voluntarily in accordance with the guidelines issued by the Global Reporting Initiative (“GRI”). Further to this, Harmony discloses environmental information on the Carbon Disclosure Project (“CDP”) for both climate change and water. The CDP runs the global environmental disclosure system that supports companies to measure and manage their risks and opportunities on climate change, water security and deforestation.

Harmony has a good understanding of the environmental and social aspects of the operations through baseline and specialist studies previously conducted. Risk management and mitigation measures were adequately addressed in the environmental management plans and will be effective to mitigate risks and impacts to acceptable levels should the measures be implemented according to the specialists’ recommendations.

The QP is of the opinion that most of the required environmental authorisations are in place and only require amendments to be made to reflect the current infrastructure. Based on current industry norms, a realistic timeframe to obtain relevant authorisations is estimated between 12 and 18 months.

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa

18Capital and Operating Costs

Section 229.601(b)(96) (18) (i-ii)

Economic parameters for the Harmony Group, including capital and operating costs, are determined, and signed off by the CODM, before distribution to the business units, including Tshepong North. The capital and operating costs are reported in ZAR terms and on a real basis. Rounding of figures may result in minor computational discrepancies.

18.1Capital Costs

The estimated capital costs for Tshepong North are reported according to costs associated with major equipment outside the main operating sections which is termed AE, infrastructure development, as well as operating capital, as presented in Table 18-1.

An average contingency of 10% is applied where the capital cost estimates have a level of uncertainty, for example, where a capital project is an isolated occurrence. Where the capital cost estimates have a reasonable basis, there is no contingency applied. The estimated capital costs are carried forward and modelled in the Tshepong North cash flow.

18.2Operating Costs

A summary of the direct and indirect operating costs for Tshepong North as per Mineral Reserve 2024 are presented in Table 18-2. Operating costs are based on historic performance while applying any changes expected within the new financial year (such as electricity requirements, increased/decreased labour) and are used as an input into the Tshepong North’ cash flow model.

18.3Comment on Capital and Operating Costs

The capital and operating cost estimates for Tshepong North are based on actual historical data, as well as budget forecasts. Therefore, the forecasted costs are reliable, and at minimum meet the confidence levels of a Pre-Feasibility Study. This approach of estimating capital and operating costs is consistent with industry practice. A record of the forecast and budget costs is maintained by the operation, allowing for an assessment of the alignment of the forecast and actual costs.

Table 18-1: Summary of Capital Cost Estimate for Tshepong North


Capital Cost Element (ZAR'000s)			Mineral Reserves (FY2024 - FY2028)
AE			91 645
Shaft Projects			28 322
Major Projects			0

Total			119 967
OCD			809 252
Total (including OCD)			929 219

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa

Table 18-2: Summary of Operating Cost Estimate for Tshepong North


Operating Cost Element (ZAR'000)			Mineral Reserves (FY2024 - FY2028)
Wages - Payroll 1			2 525 741
Wages - Payroll 2			3 915 018
Stores and Materials			2 124 777
Electric Power and Water			2 348 267
Outside Contractors			907 274
Other			370 838
Direct Costs			12 191 915
Refining charge allocation			38 135
Assay cost allocation			64 581
Hostel cost allocation			(80 123)
Treatment cost allocation			644 032
Rail transport allocation			34 708
Sampling Cost Allocation			567
Re-allocated costs			701 900
Mine Overheads Re-allocated			611 517
Total			13 505 332

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa

19Economic Analysis

Section 229.601(b)(96) (19) (i-iv)

19.1Key Economic Assumptions and Parameters

The QP and CODM forms, reviews, signs-off and distributes economic assumptions to its various business units. On an annual basis, during the period October to November, long-term commodity prices and exchange rates forecasts’, are received from various financial institutions. In addition, a specialist in Economics from a reputable economics company based in South Africa, provides expert views on the global markets, forward looking commodity prices, exchange rates, consumer price index, production price index, electricity cost and consumable increases. All factors are analysed, cognisance is taken of the requirements of the NYSE and JSE markets, and a proposal is presented to the CODM for recommendation and approval. These assumptions are then applied at Tshepong North, along with specific operational considerations.

19.1.1Gold Price

The forecast gold price (USD1,582/oz) is the price that is used by Harmony for the Tshepong North annual planning cycle and forms the basis for the spot gold price assumptions used in the Tshepong North cashflow. The reader is referred to Figure 16-2 for the consensus forecast gold price. The conversions used in the calculation of the various gold prices is presented in Table 19-1.

Table 19-1: Conversions Used in Gold Price Calculations


Economic Factors	Gold Price (USD/oz)	Conversion Factor (oz/kg)	Exchange Rate (ZAR:USD)	Gold Price (ZAR/kg)
2023 Mineral Resource	1 764	32.15	16.22	920 000
2023 Mineral Reserve	1 582	32.15	16.22	825 000

Notes: 1. The QP used a conservative gold price of ZAR825 000/kg for Mineral Reserve cut-off calculations, Mineral Reserve and LOM cash flow estimates

19.1.2Exchange Rate

The South African Rand (ZAR) depreciated significantly since the start of 2023 to average at R17.75/USD during the first quarter of 2023, 0.7% weaker compared to an average of R17.63/USD recorded during the last quarter of 2022. Moving onto the second quarter of 2023, the South African Rand depreciated further by 5.2% to average at R18.67/USD on a quarter-on-quarter basis.

The trade of the South African Rand (ZAR) to the U.S. Dollar (USD) is an important trade, as further weakness in ZAR can be expected in the medium term, after recent comments by Federal Reserve Chairman Jerome Powell alluded to further interest rate hikes to curb inflation, giving the USD further upside against the Rand.

Recent levels of the Rand (ZAR), which had seen the local currency appreciate by more than 4% against the USD, since the start of June 2023, making it the second-best-performing emerging market currency over this period and in recent trades.

The spot exchange rate of 16.22 ZAR:USD is the exchange rate that is used by Harmony for the annual planning cycle and forms the basis for the ZAR:USD exchange rate in the company LOM and Mineral Reserve cashflow.

Table 19-2: ZAR:USD Exchange Rate Performance (June 2020 – June 2023)


Period			Average Exchange Rate (ZAR:USD)
July 2020 to June 2021			15.43
July 2021 to June 2022			15.21
July 2022 to June 2023			17.77
3-Year Ave. (not weighted)			16.14

19.1.3Royalties

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa

Royalty is an expense paid to the government of South Africa and is accounted for in the Tshepong North cash flow models. In terms of the mining ring-fencing application, each ring-fenced mine is treated separately, and deductions can normally only be utilised against mining income generated from the relevant ring-fenced mine.


Figure 19-1: Graph of Consensus ZAR : USD Exchange Rate Forecast

19.1.4Taxes

Mining tax on gold mining taxable income in South Africa is determined according to a formula, based on the taxable income from mining operations. Of that, 5% of total revenue is exempt from taxation while the remainder is taxable at a higher rate (33%) than non-mining income (27%). Accounting depreciation is eliminated when calculating the South African mining tax income. Excess capital expenditure is carried forward as unredeemed capital to be claimed against future mining taxable income.

19.1.5Summary

The key assumptions used in the cash flow are summarised for Tshepong North in Table 19-3.

Table 19-3: Key Economic Assumptions and Parameters for Tshepong North Cash Flow


Parameter	Unit	Value Mineral Reserve
Production Rate	tpm	62 719.00
Gold Recovery	%	94.96
Royalty	%	0,05
Tax Rate	%	Formula
Gold Price	ZAR/kg	825 000
Exchange Rate	USD:ZAR	16.22
Discount Rate	%	9,00

19.2Economic Analysis

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa

Harmony's respective business units and its associated operating sites consider the economic assumptions discussed in Section 19.1 during their respective planning and analysis processes. The past year’s average gold price is used for testing purposes. A gold price of ZAR825,000/kg is used for forecasting the revenue of the Tshepong North Mineral Reserve cash flow (Table 19-4A).

The discounted cash flow model is used to calculate the Net Present Value (“NPV”) of the Mineral Reserve . The NPV for the spot metal price, for Tshepong North LOM is approximately ZAR 0.930 Ml cash positive, at a discount rate of 9%. At a ZERO discount rate the Cash flow is positive at ZAR 88.867Ml. (Table 19-4).

The NPV is calculated on a cash flow that accounts for factors such as:

•mining and ore processing working costs;

•royalty payments;

•capital costs, including costs allocated to ongoing development;

•any significant project work considered as major projects; and

•costs deemed as abnormal expenditure.

19.3Sensitivity Analysis

The economic assumptions, cash flow breakdown and economic analysis contribute to the basis for the sensitivity analysis. The sensitivities are calculated and analysed, as shown in the accompanying Table 19-5 and Table 19-6.

Harmony has reviewed its exposure in terms of South Africa’s political instability, the COVID-19 pandemic, the currency exchange rate, and the gold price, on its financial assets and financial liabilities, and has determined the sensitivities for a ±10% variance. Management considers this range to be a reasonable change given the volatility in the market.

The sensitivity analysis (Table 19-5 and Table 19-6) is based on a change in a single assumption while holding all other assumptions constant. In practice, this is unlikely to occur, as risks and/or opportunities will have an impact on the cash flows, and changes in some of these assumptions may be correlated. The insights that can be provided by this sensitivity analysis is that Tshepong North is almost equally sensitive to changes in the gold price (ZAR/kg), as to changes in total operating costs (ZAR).

The impact of one or a combination of risks and opportunities occurring at the same time cannot be specifically quantified so an analysis considering multi-parameters is not considered.

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa

Table 19-4: Tshepong North Cash Flow (Mineral Reserve)


Item	Units	Reserve Total	FY2024	FY2025	FY2026	FY2027	FY2028
Mining advance	m2	972 929	193 473	193 635	193 557	193 539	198 725
Total OCD	m	14 016	5 077	4 587	2 154	2 199	0
Milled tons	t '000	3 763	739	755	754	754	761
Yield	g/t	4,73	4,67	4,73	4,96	4,92	4,36
Gold recovered	kg	17 786	3 455	3 569	3 738	3 707	3 316
Revenue	ZAR'000	14 674 107	2 850 775	2 944 673	3 084 250	3 058 108	2 736 301
Total operating costs	ZAR'000	13 505 332	2 739 803	2 730 614	2 707 145	2 674 409	2 653 361
Capital (including OCD)	ZAR'000	1 006 538	365 917	306 698	176 081	144 807	13 035
Royalty	ZAR'000	73 371	14 254	14 723	15 421	15 291	13 682
Total costs (including capital and royalty)	ZAR'000	14 585 239	3 119 974	3 052 035	2 898 647	2 834 506	2 680 076
Profit (after OCD and capital)	ZAR'000	88 868	(269 199)	(107 362)	185 603	223 602	56 224
NPV - (low discount rate - 9%)	@9%	930
NPV - (medium discount rate - 12%)	@12%	(19 831)
NPV - (high discount rate - 15%)	@15%	(37 432)

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa

Table 19-5: Gold Price Sensitivity Analysis (Mineral Reserves)


Sensitivity (%)	Production (kg)	Gold Price (ZAR/kg)	Revenue (ZAR’000)	Operating Cost (ZAR'000)	Profit / Loss (ZAR'000)	NPV 9% (ZAR'000)
10%	17 786	907 500	16 141 518	14 592 577	1 548 941	1 137 252
5%	17 786	866 250	15 407 813	14 588 909	818 904	569 091
Reserves	17 786	825 000	14 674 107	14 585 240	88 867	930
-5%	17 786	783 750	13 940 402	14 581 572	(641 170)	(567 231)
-10%	17 786	742 500	13 206 697	14 577 903	(1 371 206)	(1 135 392)

Table 19-6: Total Operating Cost Sensitivity Analysis (Mineral Reserves)


Sensitivity (%)	Production (kg)	Gold Price (ZAR/kg)	Revenue (ZAR’000)	Operating Cost (ZAR'000)	Profit / Loss (ZAR'000)	NPV 9% (ZAR'000)
10%	17 786	825 000	14 674 107	16 043 764	(1 369 657)	(1 141 009)
5%	17 786	825 000	14 674 107	15 314 502	(640 395)	(570 039)
Reserves	17 786	825 000	14 674 107	14 585 240	88 867	930
-5%	17 786	825 000	14 674 107	13 855 978	818 129	571 899
-10%	17 786	825 000	14 674 107	13 126 716	1 547 391	1 142 869

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa

20Adjacent properties

Section 229.601(b)(96) (20) (i-iv)

Tshepong North and South are 100% owned by Harmony. Tshepong North is bounded to the north by the dormant Jeanette Mine and the present-day Target Mine. The Tshepong South Mine lies to the south-east of the Tshepong North Mine. The Eland Mine is located south-east of Tshepong South, while the Welkom 4 Shaft is further south from the Tshepong South Mine.

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa

21Other Relevant Data and Information

Section 229.601(b)(96) (21)

Other relevant data and information pertaining to Tshepong North is the Sub 75 Capital Project. The objective of this capital project is to extend development below the current working level to 77 level and access higher grades at depth. Tentative timelines include a project kick-off in Q1 2025 and an envisaged completion in Q4 2027. The project is critical in grade control over the LOM plan.

Sub 75 project has been stopped for FY23 LOM. After numerous planning and designing strategies it has been decided to restart the engineering civil work for the project to start up in FY25.

Other relevant information includes the public disclosure reports on Tshepong North operational, financial and environmental performance are available on the Company’s corporate website. The following reports are relevant to this TRS:

•Integrated annual report 2023;

•ESG report 2023;

•Financial report 2023;

•Report to shareholders 2023;

•Operational report 2023; and

•TCFD report.

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa

22Interpretation and Conclusions

Section 229.601(b)(96) (22)

The QP has no known risks to conduct mining activities over the permitted mining rights’ areas, incorporated as Tshepong North. In addition, no known risks are posed over surface access and activities, regarding mining related activities.

Tshepong North’ regional geological setting, mineralisation and deposit is well understood. The geology is supported by historical geophysical surveys, surface diamond core drilling and underground channel (chip) sampling and mapping. Economic mineralisation occurs in the Basal Reef and B Reefs . The former is mined at both Tshepong North and South, while the latter is only mined at Tshepong North.

The sampling approach and management, density assumptions, laboratory procedures, and assaying and analysis are in keeping with industry standards and practices and is appropriate for the mineralisation at the Central Rand Group. The holistic understanding of the regional geology, lithological and structural controls of the mineralisation at Tshepong North is sufficient to support the estimation of Mineral Resources.

Gold bearing ore mined at Tshepong North is processed at the Harmony One Plant facility which has been in operation since 1986. As such, the processing method is considered well established for the mineralisation at Tshepong North. The plant makes use of historical trends and data as a basis for their recoveries of Basal and B reefs.

The data pertaining to the mineralisation, regional and geological setting, exploration findings, sample collection, preparation, and testing, inclusive of data verification and metallurgical test work gives rise to the Mineral Resource estimate.

The combined Measured and Indicated Mineral Resource, exclusive of Mineral Reserves, for Tshepong North Mine, as at 30 June 2023 is 15.082Mt at a grade of 11.97g/t, containing 5.803Moz of gold, and the Inferred Mineral Resource contains 10.741Mt at a gold grade of 10.20g/t, containing 3.194Moz of gold.

Mineral Reserves are derived from the Mineral Resources, a detailed business plan and operational mine planning processes. Mine planning utilises and takes into consideration actual historical technical parameters. In addition, conversion of the Mineral Resources to Mineral Reserves considers Modifying Factors, dilution, ore losses, minimum mining widths, planned mine call and plant recovery factors.

The Mineral Reserves are extracted via the SGM method, with minor undercut and open stoping methods used at the Tshepong North Mine. Mining methods take into consideration the mining and rock engineering design guidelines. The integrated selection of the mining method increases flexibility, safety and minimises seismic events.

Extracted minerals from Tshepong North are recovered at the Harmony One Plant. The metallurgical process is well-tested technology, based on sound historic operating parameters.

The mine’s regional and local infrastructure is capable of fully supporting the mining and surface related activities. Tshepong North is accessed via national and provincial road networks, has key power transmission and distribution networks provided by the National electricity regulator, water supply networks and communication infrastructure. Overall, Tshepong North is well-established with sufficient logistics and infrastructure support for the existing and planned mining operations.

Harmony and Tshepong North are exposed to market risks such as exchange rate and gold price fluctuations which are partially offset by the Harmony Group hedging policy. The hedging programme considers factors effecting the global gold market and these, along with macro-economic conditions, are used to determine planning and forecasting inputs at group level for all of Harmony’s operating business units. Other non-gold related risks are addressed to some extent by Tshepong North entering into vendor agreements for the provisions of supplies and services which are done on a competitive basis with customary price adjustment, renewal and termination clauses.

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa

To successfully operate a mining operation in South Africa the state requires compliance with applicable environmental laws, regulations, permits and standards. Tshepong North adheres to said compliance and regulatory standards and have, in addition, implemented an Environmental Management System in line with the ISO 14001.

As part of Harmony, Tshepong North conducts its operations based on policies and systems that are aligned to its corporate sustainable development framework. This is guided by the principles of the framework from the International Council on Mining and Metals or the UN Global Compact. Harmony discloses its sustainable development voluntarily in accordance with the guidelines issued by the Global Reporting Initiative. Further to this, Harmony discloses environmental information on the Carbon Disclosure Project for both climate change and water.

Harmony has a good understanding of the environmental and social aspects through baseline and specialist studies previously conducted. Risk management and mitigation measures were adequately addressed in the environmental management plans. Most of the required environmental authorisations are in place and only require amendments to be made to reflect the current infrastructure at Tshepong North. Based on current industry norms, a realistic timeframe to obtain relevant authorisations is estimated between 12 and 18 months.

One of the ways Harmony aims to grow and develop the people and assets and provide sustainable value to all stakeholders is through economic regeneration.

The contribution for Reserves is ZAR 88.867Ml cash positive at a gold price of ZAR825,000/kg and the NPV at a 9% discount rate is 0.930Ml cash positive. Sensitivities were done on commodity price and costs. Considering a 10% upside in the commodity price sensitivity on the forward looking long term gold price this results into a ZAR1 137.252 Ml positive cash flow at a gold price of ZAR907,500/kg.

The NPV is calculated on cash flow taking into account factors such as: capital and operating costs; and royalties. The capital and operating cost estimates for Tshepong North are based on historical data, as well as budget forecasts. This estimation technique allows for the forecast and actual costs to be aligned.

Royalties and taxes are paid to the South African government and accounted for in the Tshepong North cash flow and NPV analysis. There are also specific tax relief benefits that apply to gold mining companies, where 5% of total revenue is exempt from taxation, amongst other benefits.

The economics of Tshepong North are tested for its sensitivity to commodity price (ZAR/kg) and operating costs (ZAR). The insights provided by the sensitivity analysis is that Tshepong North is almost equally sensitive to changes in the gold price (ZAR/kg), as to changes in total operating costs (ZAR).

This TRS was prepared by a team of experienced professionals. The TRS provides a summary of the material scientific and technical information concerning the mineral exploration, Mineral Resources, Mineral Reserves, and associated production activities of the mineral asset, including references to the valuation for Tshepong North. Each QP was responsible for specific sections of this TRS which they have personally supervised and reviewed. This TRS contains the expression of the QP opinions, based on the information available at the time of preparation.

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa

23Recommendations

Section 229.601(b)(96) (23)

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa

24References

Section 229.601(b)(96) (24)

Dankert, B.T., and Hein, K.A.A., 2010. Evaluating the structural character and tectonic history of the Witwatersrand Basin. Precambrian Research 177, 1–22.

https://www.gold.org/goldhub/data/gold-prices. Accessed 22 July 2022.

Robb, L.J., and Meyer, F., 1995. The Witwatersrand Basin, South Africa: Geological framework and mineralisation processes. Ore Geology Reviews, 10(2), 67-94.

Robb, L.J., Robb, V.M., 1998. Gold in the Witwatersrand Basin. In: Wilson, M.G.C., Anhaeusser, C.R. (Eds.), The Mineral Resources of South Africa. Handbook. Council for Geoscience, 294–349.

South African Revenue Services. (2021, July 29). South African Revenue Services. Retrieved from Tax Relief Measures: https://www.sars.gov.za/media/tax-relief-measures/

Therriault, A.M., Grieve, R.A.F., Reimold, W.U., 1997. Original size of the Vredefort Structure: Implications for the geological evolution of the Witwatersrand Basin. Meteoritics and Planetary Science 32, 71–77.

Tucker, R.F., Viljoen, R.P., and Viljoen, M.J., 2016. A Review of the Witwatersrand Basin The World’s Greatest Goldfield, accessed from https:// www.researchgate.net /publication /305924249 _A_Review_of_the_Witwatersrand_Basin_-_The_World's_Greatest_Goldfield.

World Gold Council. (2022, July 13). World Gold Council, Gold Hub, Gold mine production: Gold Production by Country | Gold Production | Goldhub

Effective Date: 30 June 2023

Technical Report Summary for

Tshepong North, Free State Province, South Africa

25Reliance on Information Provided by the Registrant

Section 229.601(b)(96) (25)

Further to Section 24, in the preparation of this TRS, the principal QPs and authors relied upon information provided by the Registrant and other internal specialists with regards to mining rights, surface rights, contractual agreements, historical operating expenditures, community relations and other matters. The work conducted by these specialists was completed under the supervision and direction of the respective QPs. The specialists who assisted the principal authors and QPs are listed in Table 25-1.

Table 25-1: Other Specialists


Name	Specialist	Area of Responsibility	Association / Company
S Sabelo	HOD Geology	Geology	Tshepong
R du Toit	Section Valuator	Valuation and Estimation	Tshepong
H Groenewald	Section Planner	Mine planning and design	Tshepong
I Prinsloo	Senior Planner	Mine planning and design	Tshepong
C Norton	Financial Manager	Finance and costing	Tshepong
J Powell	Geostatistician	Geostatistics Central	Tshepong
K Obelholzer	Senior Engineer	Engineering	Tshepong
J van der Merwe	Rock Engineer	Rock engineering	Tshepong
C Mokoena	Cost Accountant	Finance and costing	Tshepong
A Oosthuizen	Senior Hygienist	Occupational, Environmental, Ventilation	Tshepong North and Tshepong South

Effective Date: 30 June 2023

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