CDXC ChromaDex Corporation

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

SCHEDULE 13D/A

(Rule 13d-101)

INFORMATION INCLUDED IN STATEMENTS FILED PURSUANT

TO RULE 13d-l(a) AND AMENDMENTS THERETO FILED

PURSUANT TO RULE 13d-2(a)

(Amendment No. 15)*

CHROMADEX CORPORATION

(Name of Issuer)

COMMON STOCK, $0.001 PAR VALUE PER SHARE

(Title of Class of Securities)

171077407

(CUSIP Number)

Pioneer Step Holdings Limited

Dvorak International Limited

Skyinvest Associates Limited

Elgar International Limited

Brilliant Dynasty Limited

Champion River Ventures Limited

Winsave Resources Limited

Radiant Treasure Limited

Attention: Tony Pun

c/o Suites PT. 2909 & 2910

Harbour Centre

25 Harbour Road

Wanchai, Hong Kong

(852) 2186-3864

(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)

August 20, 2024

(Date of Event which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d 1(e), 240.13d 1(f) or 240.13d 1(g), check the following box. ☐

Note: Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See §240.13d-7 for other parties to whom copies are to be sent

The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

EXPLANATORY STATEMENT

This Amendment No. 15 to Schedule 13D (“Amendment No. 15”) relates to the shares of common stock (the “Common Stock”), par value $0,001 per share, of ChromaDex Corporation, a Delaware corporation (the “Issuer” and such shares of Common Stock, the “Shares”), and is being filed on behalf of the Reporting Persons. This Amendment No. 15 amends and supplements Amendment No. 14 to Schedule 13D previously filed with the Securities and Exchange Commission (the “SEC”) on October 3, 2022 (“Amendment No. 14”), Amendment No. 13 to Schedule 13D previously filed with the SEC on May 20, 2022 (“Amendment No. 13”), Amendment No. 12 to Schedule 13D previously filed with the SEC on September 21, 2021 (“Amendment No. 12”), Amendment No. 11 to Schedule 13D previously filed with the SEC on September 20, 2021 (“Amendment No. 11”), Amendment No. 10 to Schedule 13D previously filed with the SEC on September 17, 2021 (“Amendment No. 10”), Amendment No. 9 to Schedule 13D previously filed with the SEC on April 29, 2020 (“Amendment No. 9”). Amendment No. 8 to Schedule 13D previously filed with the SEC on August 16, 2019 (“Amendment No. 8”), the Amendment No. 7 to Schedule 13D previously filed with the SEC on July 2, 2019 (“Amendment No. 7”), the Amendment No. 6 to Schedule 13D previously filed with the SEC on May 20, 2019 (“Amendment No. 6”), the Amendment No. 5 to Schedule 13D previously filed with the SEC on May 13, 2019 (“Amendment No. 5”), the Amendment No. 4 to Schedule 13D previously filed with the SEC on November 21, 2017 (“Amendment No. 4”), the Amendment No. 3 to Schedule 13D previously filed with the SEC on November 7, 2017 (“Amendment No. 3”), the Amendment No. 2 to Schedule 13D previously filed with the SEC on May 26, 2017 (“Amendment No. 2”). the Amendment No. 1 to Schedule 13D previously filed with the SEC on May 11, 2017 (“Amendment No. 1”), and the initial Schedule 13D previously filed with the SEC on May 8, 2017 (the “Initial Schedule 13D” together with Amendment No. 1, Amendment No. 2, Amendment No. 3, Amendment No. 4, Amendment No. 5, Amendment No. 6, Amendment No. 7, Amendment No. 8, Amendment No. 9, Amendment No. 10, Amendment No. 11, Amendment No. 12, Amendment No. 13, Amendment No. 14, and this Amendment No. 15, the “Schedule 13D”).

This Schedule 13D relates to shares of Common Stock of the Issuer. The address of the Issuer’s principal executive office is 10900 Wilshire Blvd. Suite 600, Los Angeles, California 90024. Information given in response to each item shall be deemed incorporated by reference in all other items, as applicable.

The Shares to which this Schedule 13D relates are owned directly by Pioneer Step, Dvorak International, Skyinvest Associates, Champion River, Radiant and Winsave (each as defined below).

Item 2 (a) - (c). This Schedule 13D is being filed by the following persons: Pioneer Step Holdings Limited, a British Virgin Islands corporation (“Pioneer Step”), Dvorak International Limited, a British Virgin Islands corporation (“Dvorak International”), Skyinvest Associates Limited, a British Virgin Islands corporation (“Skvinvest Associates”), Elgar International Limited, a British Virgin Islands corporation (“Elgar International”), Brilliant Dynasty Limited, a British Virgin Islands corporation (“Brilliant Dynasty”), Champion River Ventures Limited, a British Virgin Islands corporation (“Champion River”), Radiant Treasure Limited, a British Virgin Islands corporation (“Radiant”), Winsave Resources Limited, a British Virgin Islands corporation (“Winsave”), Chau Hoi Shuen Solina Holly, a British citizen and a permanent resident of the Hong Kong Special Administrative Region, People’s Republic of China (“Solina Chau”). Pioneer Step, Dvorak International, Skyinvest Associates, Elgar International, Brilliant Dynasty, Champion River, Winsave, Radiant and Solina Chau are sometimes individually referred to herein as a “Reporting Person” and collectively as the “Reporting Persons.” Solina Chau is the sole shareholder of each of Pioneer Step, Dvorak, Skyinvest Associates and Elgar International. Elgar International is the sole shareholder of Brilliant Dynasty. Brilliant Dynasty is the sole shareholder of each of Champion River, Radiant and Winsave following the completion of the August 2024 Transaction (as defined below).

Item 2 (d) - (e). During the last five years, none of the Reporting Persons has been convicted in any criminal proceeding, or has been a party to any civil proceeding of a judicial or administrative body of competent jurisdiction and as a result of such proceeding was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violations with respect to such laws.

Item 2 (f). Each of Pioneer Step, Dvorak International, Skyinvest Associates, Elgar International, Brilliant Dynasty, Champion River, Winsave and Radiant is a corporation formed under the laws of the British Virgin Islands. Solina Chau, a natural person, is a British citizen and a permanent resident of the Hong Kong Special Administrative Region, People’s Republic of China.

The information set forth in Item 4 hereof is hereby incorporated by reference into this Item 3, as applicable.

August 2024 Transaction

On August 20, 2024, Brilliant Dynasty entered into a securities purchase agreement (the “August 2024 Purchase Agreement”) with Prime Tech Global Limited, a British Virgin Islands corporation (“Prime Tech”) and Alpha Mount International Limited, a British Virgin Islands corporation (“Alpha”) to purchase all of the share capital of Champion River, Winsave and Radiant from Prime Tech and Alpha, for an aggregate consideration of $32,058,489.15 (the “August 2024 Transaction”). At time of entry into the August 2024 Purchase Agreement, Prime Tech owned all of the share capital of Champion River and Alpha owned all of the share capital of Winsave and Radiant. At the time of entry into the August 2024 Purchase Agreement, Champion River, Winsave and Radiant beneficially owned 7,940,937, 3,088,433 and 379,345 Shares, respectively, and by virtue of the August 2024 Transaction, Brilliant Dynasty will indirectly beneficially own the Shares held by Champion River, Winsave and Radiant.

September 2022 Securities Purchase Agreement

On September 30, 2022, Pioneer Step, Champion River and Robert Fried IRA (each a “September 2022 Purchaser” and together, the “September 2022 Purchasers”) entered into a Securities Purchase Agreement with the Issuer (the “September 2022 Purchase Agreement”). Pursuant to the September 2022 Purchase Agreement, the Issuer agreed to issue and sell to the September 2022 Purchasers an aggregate of approximately $3.1 million of Common Stock (2,480,000 Shares) at a purchase price of $1.25 per share (the “September 2022 Transaction”). Pioneer Step, in its capacity as a September 2022 Purchaser, agreed to purchase 960,000 Shares in the September 2022 Transaction. The September 2022 Transaction closed on October 7, 2022.

May 2022 Joint Venture Agreement and Subsequent Termination

On May 19, 2022, the Issuer entered into an agreement (the “May 2022 Joint Venture Agreement”) for the formation of a joint venture (the “JV”) among Crystal Lake Developments Limited (“Crystal Lake”), Pioneer Idea Holdings Limited (“Pioneer Idea”), and Hong Kong Taikuk (China) Group Ltd (“Taikuk”). The purpose of the JV will be to commercialize Tru Niagen^® and other products containing nicotinamide riboside to be developed by the Issuer in the ordinary course (the “Products”) in Mainland China and its territories, excluding Hong Kong, Macau and Taiwan (the “Territory”). At the closing of the formation of the JV (the “Closing”) the Issuer will license to the JV certain inventions and trademarks relating to the Products and will exclusively own any invention developed by the JV that incorporates such intellectual property. The May 2022 Joint Venture Agreement will have an initial term of 20 years, unless earlier terminated. The Closing is subject to certain customary closing conditions and is expected by the end of the third quarter of 2022.

Pioneer Idea, a company organized under the laws of the British Virgin Islands, is indirectly wholly-owned by Solina Chau.

Crystal Lake, Pioneer Idea and Taikuk have each agreed to contribute $1.8 million, $1.2 million and $1.0 million, respectively into the JV. Following the closing, each of the parties will hold the following interest in the JV: the Issuer (71%), Crystal Lake (10.8%), Pioneer Idea (7.2%) and Taikuk (a 11% non-voting interest). The Issuer will have the right to elect three of the five directors in the JV, and Pioneer Idea, has the right to elect the other two directors, with each director having one vote with the exception of certain material corporate actions which will require unanimous approval of the board of the JV.

Prior to being able to commercialize the Products in the Territory, the JV will have to obtain all applicable regulatory approvals, including “Blue Hat” or health food registration with the PRC State Administration for Market Regulation for Products in the name of the Issuer or its designee (collectively, the “Blue Hat Registration”).

In addition, at the Closing the Issuer will enter into a distribution agreement with China National Pharmaceutical Group Co., Ltd. (“Sinopharm”) relating to the commercialization of the Products in the Territory on Sinopharm’s cross-border platform (the “Cross Border Agreement”) and the JV will enter into a distribution agreement with Sinopharm relating to the commercialization of the Products in the Territory. Upon Blue Hat Registration being obtained, the business of the JV will be to market, sell and distribute the Products in the Territory. Upon completion of the Blue Hat Registration, the parties intend that the Cross Border Agreement will be assigned to the JV.

On September 30, 2022 the Issuer entered into a Termination Agreement (the “Termination and Release Agreement”) among the Issuer, Crystal Lake, Pioneer Idea and Taikuk for the purpose of terminating the May 2022 Joint Venture Agreement. Each of the parties to the Termination and Release Agreement irrevocably and unconditionally released all other parties for any obligations under the May 2022 Joint Venture Agreement and releases all claims of action under the May 2022 Joint Venture Agreement.

The foregoing descriptions of the May 2022 Joint Venture Agreement and Termination and Release Agreement are not complete and are qualified in their entirety by reference to the full text of the May 2022 Joint Venture Agreement and Termination and Release Agreement, which are incorporated by reference into this Schedule 13D pursuant to Exhibit 99.12 and Exhibit 99.15 of Item 7 hereof.

April 2020 Securities Purchase Agreement

On April 27, 2020, Pioneer Step and Winsave Resources Limited (each a “April 2020 Purchaser” and together, the “April 2020 Purchasers”) entered into a Securities Purchase Agreement with the Issuer (the “April 2020 Purchase Agreement”). Pursuant to the April 2020 Purchase Agreement, the Issuer agreed to issue and sell to the April 2020 Purchasers an aggregate of approximately $5 million of Common Stock (1,225,490 Shares) at a purchase price of $4.08 per share (the “April 2020 Transaction”). Pioneer Step, in its capacity as a April 2020 Purchaser, agreed to purchase 490,196 Shares in the April 2020 Transaction. The closing of the April 2020 Transaction occurred on May 7, 2020.

May 2019 Note Purchase Agreement and Convertible Promissory Notes

On May 9, 2019, Pioneer Step and Winsave Resources (each a “May 2019 Purchaser” and together, the “May 2019 Purchasers”) entered into a Securities Purchase Agreement with the Issuer (the “May 2019 Note Purchase Agreement”), Pursuant to the May 2019 Note Purchase Agreement, the Issuer agreed to issue and sell to each of Pioneer Step and Winsave Resources, and each of Pioneer Step and Winsave Resources agreed to purchase from the Issuer, a Convertible Promissory Note in the principal amount of $5,000,000 (each, a “Note” and collectively, the “Notes”), which is convertible into certain amount of Shares pursuant to the terms thereof (the “May 2019 Transaction”), The Note issued and sold by the Issuer to Pioneer Step is hereinafter referred to as the “Pioneer Step Note”, and the Note issued and sold by the Issuer to Winsave Resources is hereinafter referred to as the “Winsave Resources Note”. Each of the Notes bears simple interest at the rate of 5% per annum.

Pursuant to the Pioneer Step Note (as amended as described below), the principal amount and any accrued interest shall automatically convert into Shares at a conversion price of $4.59 per share on the Maturity Date (as defined below); provided that, if the Issuer issues and sells any Shares, or any securities convertible into Shares, to any investors (the “Investors”) on or before the Maturity Date in one or more financing transactions (each, a “Financing Transaction”), then, at the option of Pioneer Step, the conversion price of the Pioneer Step Note shall be equal to the lowest price per share paid by any such Investor purchasing any such Shares (or the lowest conversion price per share for any such securities convertible into Shares and purchased by an Investor) in any such financing transaction(s) on or prior to the Maturity Date.

The May 2019 Transaction closed on May 17, 2019, at which closing the Issuer issued and sold the Pioneer Step Note to Pioneer Step and the Winsave Resources Note to Winsave Resources, respectively.

On June 30, 2019, the Issuer, Pioneer Step and Winsave Resources entered into an Omnibus Amendment to Note Purchase Agreement and Convertible Promissory Notes (the “Omnibus Amendment”) whereby (i) the restriction on the Issuer to issue any Shares or securities convertible or exchangeable into Shares during the Restricted Period (as defined in the May 2019 Note Purchase Agreement) was removed, and (ii) the original maturity date under each of the Notes was extended from July 1, 2019 to August 15, 2019 (“Maturity Date”).

As disclosed by the Issuer, on August 13, 2019, the Issuer entered into a Securities Purchase Agreement (the “Purchase Agreement”) with certain purchasers named therein (the “Purchasers”), pursuant to which the Issuer agreed to sell and issue certain amount of Shares to the Purchasers at a purchase price of $4,465 per share.

On August 15, 2019, the Notes were converted into an aggregate of 2,267,254 Shares at a conversion price of $4,465 per share, which is equal to the purchase price per share paid by the Purchasers to the Issuer under the Purchase Agreement, pursuant to the terms of the Notes, Under the Pioneer Step Note, 1,133,627 Shares are issued to Pioneer Step in accordance with the terms therein.

November 2017 Securities Purchase Agreement

On November 3, 2017, Pioneer Step and certain other purchasers named therein (each a “November 2017 Purchaser” and together, the “November 2017 Purchasers”) entered into a Securities Purchase Agreement with the Issuer (the “November 2017 Purchase Agreement”). Pursuant to the November 2017 Purchase Agreement, the Issuer agreed to issue and sell to the November 2017 Purchasers an aggregate of approximately $23 million of Common Stock (5,609,755 Shares) at a purchase price of $4,10 per share (the “November 2017 Transaction”), Pioneer Step, in its capacity as a November 2017 Purchaser, has agreed to purchase 487,805 Shares in the November 2017 Transaction, The November 2017 Transaction closed on November 17, 2017, at which closing the Issuer issued 487,805 Shares to Pioneer Step and 5,121,950 Shares to the other November 2017 Purchasers.

April 2017 Securities Purchase Agreement

On April 26, 2017, Pioneer Step and Champion River (each an “April 2017 Purchaser” and together, the “April 2017 Purchasers”) entered into a Securities Purchase Agreement with the Issuer (the “April 2017 Purchase Agreement”), Pursuant to the April 2017 Purchase Agreement, the Issuer agreed to sell and issue to the April 2017 Purchasers an aggregate of up to $25 million of its Common Stock at a purchase price of $2.60 per share in three tranches of approximately $3.5 million, $16.4 million and $5.1 million, respectively, The first tranche (the “First Tranche”) closed on April 27, 2017, at which closing the Issuer issued 538,462 Shares to Pioneer Step and 807,692 Shares to the other April 2017 Purchaser. Pursuant to the First Amendment to Securities Purchase Agreement, dated May 24, 2017 (the “First Amendment”), by and among the Issuer and the April 2017 Purchasers, the second tranche (the “Second Tranche”) closed on May 24, 2017, at which closing the Issuer issued 2,521,526 Shares to Pioneer Step and 3,782,288 Shares to the other April 2017 Purchaser. Pursuant to the First Amendment, following approval by the Issuer’s stockholders, the third tranche (the “Third Tranche”) closed on August 18, 2017, at which closing the Issuer issued 786,167 Shares to Pioneer Step and 1,179,250 Shares to the other April 2017 Purchaser.

Upon completion of the Second Tranche, the April 2017 Purchase Agreement required that the Issuer’s Board of Directors (the “Board”) increase the number of authorized directors so as to create two vacant seats on the Board, which vacancies were to be filled on a date following the Issuer’s 2017 Annual Meeting of Stockholders by one designee selected by each of the April 2017 Purchasers (the “Purchaser Designees”). As such, each of Pioneer Step and Champion River exercised its right to designate for appointment an individual to fill one of the two vacancies on the Issuer’s Board.

In addition, from and after the date of the April 2017 Purchase Agreement, upon prior written request thereof by any April 2017 Purchaser, the Issuer shall use reasonable efforts to enter into one or more voting agreements with one or more of the April 2017 Purchasers and such other substantial holders of Common Stock as reasonably requested by such April 2017 Purchaser(s) and agreed to by the Issuer in respect of the election of the Purchaser Designees.

September 2022 Registration Rights Agreement

Simultaneously with the execution of the September 2022 Purchase Agreement, the Issuer, Pioneer Step, Champion River and Robert Fried IRA entered into a Registration Rights Agreement, dated as of September 30, 2022 (the “September 2022 Registration Rights Agreement”) with respect to the Shares acquired under the September 2022 Purchase Agreement. The September 2022 Registration Rights Agreement grants Pioneer Step, Champion River and Robert Fried IRA customary shelf and piggyback registration rights.

April 2020 Registration Rights Agreement

Simultaneously with the execution of the April 2020 Purchase Agreement, the Issuer, Pioneer Step and Winsave Resources entered into a Registration Rights Agreement, dated as of April 27, 2020 (the “April 2020 Registration Rights Agreement”) with respect to the Shares acquired under the April 2020 Purchase Agreement. The April 2020 Registration Rights Agreement grants Pioneer Step and Winsave Resources customary shelf and piggyback registration rights.

May 2019 Registration Rights Agreement

Simultaneously with the execution of the May 2019 Note Purchase Agreement, the Issuer and the May 2019 Purchasers entered into a Registration Rights Agreement, dated May 9, 2019 (the “May 2019 Registration Rights Agreement”) with respect to the Shares issuable to the May 2019 Purchasers upon conversion of the Notes pursuant to the terms of the Notes. The May 2019 Registration Rights Agreement grants the May 2019 Purchasers customary shelf and piggyback registration rights.

November 2017 Registration Rights Agreement

Simultaneously with the execution of the November 2017 Purchase Agreement, the Issuer, Pioneer Step and the other November 2017 Purchasers entered into a Registration Rights Agreement, dated November 3, 2017 (the “November 2017 Registration Rights Agreement”) with respect to the Shares acquired under the November 2017 Purchase Agreement. The November 2017 Registration Rights Agreement grants Pioneer Step and the other November 2017 Purchasers customary shelf and piggyback registration rights.

April 2017 Registration Rights Agreement

At the closing of the First Tranche, the April 2017 Purchase Agreement required that the Issuer and the April 2017 Purchasers promptly enter into a Registration Rights Agreement in form and substance reasonably acceptable to the April 2017 Purchasers (the “April 2017 Registration Rights Agreement”) with respect to the Shares acquired under the April 2017 Purchase Agreement. The Issuer and the April 2017 Purchasers entered into the April 2017 Registration Rights Agreement on April 29, 2017. The April 2017 Registration Rights Agreement grants the April 2017 Purchasers customary shelf and piggyback registration rights.

Market Purchases

On June 16, 2022, Skyinvest Associates purchased an aggregate of 60,037 Shares in open market purchases at an average purchase price of approximately $1.6636 per share for an aggregate purchase price of approximately $99,877.55.

On June 15, 2022, Skyinvest Associates purchased an aggregate of 47,479 Shares in open market purchases at an average purchase price of approximately $1.7693 per share for an aggregate purchase price of approximately $84,004.59.

On June 14, 2022, Skyinvest Associates purchased an aggregate of 39,449 Shares in open market purchases at an average purchase price of approximately $1.8212 per share for an aggregate purchase price of approximately $71,844.52.

On May 13 2022, Skyinvest Associates purchased an aggregate of 30,943 Shares in open market purchases at an average purchase price of approximately $1.6659 per share for an aggregate purchase price of approximately $51,547.94.

On September 20, 2021, Skyinvest Associates acquired an aggregate of 22,678 Shares in open market purchases at an average purchase price of approximately $6.6392 per share for an aggregate purchase price of approximately $150,563.78.

On September 17, 2021, Skyinvest Associates acquired an aggregate of 11,272 Shares in open market purchases at an average purchase price of approximately $6.6661 per share for an aggregate purchase price of approximately $75,140.28.

From September 15-16, 2021, Skyinvest Associates acquired an aggregate of 336,000 Shares in open market purchases at an average purchase price of approximately $6.45 per share for an aggregate purchase price of approximately $2,166,63 8.74.

From November 15-27, 2019, Dvorak International acquired an aggregate of 420,000 Shares in open market purchases at a purchase price of $3.23 to $3.80 per share for an aggregate purchase price of approximately $1,485,000.

The foregoing descriptions of the August 2024 Purchase Agreement, the September 2022 Purchase Agreement, May 2022 Joint Venture Agreement, the Termination and Release Agreement, the April 2020 Purchase Agreement, May 2019 Note Purchase Agreement, the Notes, the November 2017 Purchase Agreement, the April 2017 Purchase Agreement, the September 2022 Registration Rights Agreement, the May 2019 Registration Rights Agreement, the November 2017 Registration Rights Agreement, the April 2017 Registration Rights Agreement, and the First Amendment are not complete and are qualified in their entirety by reference to the full text of such agreements, which are incorporated by reference into this Schedule 13D pursuant to Exhibits 99.2—99.16 of item 7 hereof.

Each of Pioneer Step, Dvorak International, Skyinvest Associates, Brilliant Dynasty, Elgar International, Champion River, Winsave and Radiant acquired the Shares pursuant to the above-described transactions as investments in its ordinary course of business.

In connection with the foregoing, and as may be appropriate from time to time, each of the Reporting Persons may consider the feasibility and advisability of various alternative courses of action with respect to its investment in the Issuer, including, without limitation: (a) the acquisition or disposition by the Reporting Persons of Shares, including through derivative transactions which may include security-based swaps and short sales; (b) an extraordinary corporate transaction, such as a merger, reorganization or liquidation, involving the Issuer or any of its subsidiaries; (c) a sale or transfer of a material amount of assets of the Issuer or any of its subsidiaries; (d) changes in the present board of directors or management of the Issuer; (e) a material change in the present capitalization or dividend policy of the Issuer; (f) other material changes in the Issuer’s business or corporate structure; (g) changes in the Issuer’s articles of incorporation or bylaws or other actions that may impede the acquisition of control of the Issuer by any person; (h) causing any class of the Issuer’s securities to be delisted from a national securities exchange or to cease to be authorized to be quoted in an inter-dealer quotation system of a registered national securities association; (i) causing a class of equity securities of the Issuer to become eligible for termination of registration pursuant to Section 12 of the Exchange Act; or (j) any action similar to those enumerated above.

Except as described in Item 6 and this Item 4 and any plans or proposals that may from time to time be discussed or considered by the directors of the Issuer, including the Purchaser Designees, in her fiduciary capacity as a director of the Issuer, the Reporting Persons do not currently have any plans or proposals that relate to or would result in any of the actions specified in clause (a) through (j) of this paragraph.

The Reporting Persons reserve the right, based on all relevant factors and subject to applicable law or other restrictions, at any time and from time to time, to acquire additional Shares, dispose of some or all of the Shares, in each case in open market or private transactions, block sales or otherwise, and review or reconsider their position, change their purpose, take other actions (including actions that could involve one or more of the types of transactions or have one or more of the results described in clauses (a) through (j) of the foregoing paragraph of this Item 4) or formulate and implement plans or proposals with respect to any of the foregoing. Except as set forth in this Schedule 13D, no contract, arrangement, relationship or understanding (either oral or written) exists among the Reporting Persons as to the acquisition, disposition, voting or holding of Shares.

The Reporting Persons intend to review their investment in the Issuer from time to time on the basis of various factors, including the Issuer’s business, financial condition, results of operations and prospects, general economic and industry conditions, the securities markets in general and those for the Issuer’s stock in particular, as well as other developments.

ITEM 5. INTEREST IN SECURITIES OF THE ISSUER.

(a) and (b)

As of August 20, 2024, Pioneer Step beneficially owned and had sole voting and dispositive power with respect to 6,917,783 Shares, representing approximately 9.11% of the 75,933,137 outstanding shares of the common stock of the Issuer as of August 5, 2024, as set forth in the Issuer’s quarterly report on Form 10-Q for the quarter ended June 30, 2024, as filed with the SEC on August 7, 2024.

As of August 20, 2024, Dvorak International beneficially owned and had sole voting and dispositive power with respect to 420,000 Shares, representing approximately 0.55% of the 75,933,137 outstanding shares of the common stock of the Issuer as of August 5, 2024, as set forth in the Issuer’s quarterly report on Form 10-Q for the quarter ended June 30, 2024, as filed with the SEC on August 7, 2024.

As of August 20, 2024, Skyinvest Associates beneficially owned and had sole voting and dispositive power with respect to 547,858 Shares, representing approximately 0.72% of the 75,933,137 outstanding shares of the common stock of the Issuer as of August 5, 2024, as set forth in the Issuer’s quarterly report on Form 10-Q for the quarter ended June 30, 2024, as filed with the SEC on August 7, 2024.

As of August 20, 2024, Champion River beneficially owned and had sole voting and dispositive power with respect to 7,940,937 Shares, representing approximately 10.46% of the 75,933,137 outstanding shares of the common stock of the Issuer as of August 5, 2024, as set forth in the Issuer’s quarterly report on Form 10-Q for the quarter ended June 30, 2024, as filed with the SEC on August 7, 2024.

As of August 20, 2024, Winsave beneficially owned and had sole voting and dispositive power with respect to 3,088,433 Shares, representing approximately 4.07% of the 75,933,137 outstanding shares of the common stock of the Issuer as of August 5, 2024, as set forth in the Issuer’s quarterly report on Form 10-Q for the quarter ended June 30, 2024, as filed with the SEC on August 7, 2024.

As of August 20, 2024, Radiant beneficially owned and had sole voting and dispositive power with respect to 379,345 Shares, representing approximately 0.50% of the 75,933,137 outstanding shares of the common stock of the Issuer as of August 5, 2024, as set forth in the Issuer’s quarterly report on Form 10-Q for the quarter ended June 30, 2024, as filed with the SEC on August 7, 2024.

As of August 20, 2024, Brilliant Dynasty, by virtue of being the sole shareholder of each of Champion River, Winave and Radiant, may be deemed to beneficially own and have sole voting and dispositive power with respect to the Shares beneficially owned by each of Champion River, Winave and Radiant. Collectively, Brilliant Dynasty may be deemed to beneficially own and have sole voting and dispositive power with respect to 11,408,715 Shares, representing approximately 15.02% of the 75,933,137 outstanding shares of the common stock of the Issuer as of August 5, 2024, as set forth in the Issuer’s quarterly report on Form 10-Q for the quarter ended June 30, 2024, as filed with the SEC on August 7, 2024.

As of August 20, 2024, Elgar International, by virtue of being the sole shareholder of Brilliant Dynasty, may be deemed to beneficially own and have sole voting and dispositive power with respect to the Shares beneficially owned by Brilliant Dynasty. Elgar International may be deemed to beneficially own and have sole voting and dispositive power with respect to 11,408,715 Shares, representing approximately 15.02% of the 75,933,137 outstanding shares of the common stock of the Issuer as of August 5, 2024, as set forth in the Issuer’s quarterly report on Form 10-Q for the quarter ended June 30, 2024, as filed with the SEC on August 7, 2024.

As of August 20, 2024, Solina Chau, by virtue of being the sole shareholder of each of Pioneer Step, Dvorak International, Skyinvest Associates and Elgar International, may be deemed to beneficially own and have sole voting and dispositive power with respect to the Shares beneficially owned by each of Pioneer Step, Dvorak International Skyinvest Associates and Elgar International. Collectively, Solina Chau may be deemed to beneficially own and have sole voting and dispositive power with respect to 19,294,356 Shares, representing approximately 25.41% of the 75,933,137 outstanding shares of the common stock of the Issuer as of August 5, 2024, as set forth in the Issuer’s quarterly report on Form 10-Q for the quarter ended June 30, 2024, as filed with the SEC on August 7, 2024.

The information set forth in Item 4 hereof is hereby incorporated by reference into this Item 6. Except as referenced above or described in Item 4 hereof, there are no contracts, arrangements, understandings or relationships among the Reporting Persons or between such Reporting Persons and any other person with respect to any securities of the Issuer.

After reasonable inquiry and to the best of its knowledge and belief, the undersigned certifies that the information set forth in this Statement is true, complete and correct.

Dated: August 20, 2024

Exhibit 99.1

Joint Filing Agreement

The persons or entities named below agree to the joint filing on behalf of each of them of a statement on Schedule 13D (including amendments thereto) with respect to the Shares of the Issuer and further agree that this joint filing agreement be included as an exhibit to this Schedule 13D. In evidence thereof, the undersigned, being duly authorized, have executed this Joint Filing Agreement as of August 20, 2024.

Exhibit 99.16

SECURITIES PURCHASE AGREEMENT

THIS SECURITIES PURCHASE AGREEMENT (this “Agreement”) is made on 20 August, 2024

BY AND AMONG:

The Sellers and the Purchaser are “Parties” (and each a “Party”) under this Agreement.

WHEREAS:

NOW THEREFORE, in consideration of the foregoing recitals, the mutual promises hereinafter set forth, and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the Parties hereby agree as follows:

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(i) Such Seller is the sole legal and beneficial owner of the Sale Share of the Sale Company set forth in Schedule A next to such Seller’s name, free and clear of any liens, encumbrances, claims or restrictions of any kind, other than applicable securities laws, and such Seller has full power, right and authority to transfer such Sale Share to the Purchaser.

(ii) Such Sale Share constitutes all of the issued and outstanding share capital of the applicable Sale Company as set forth in Schedule A.

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(iii) Such Sale Company, in turn, is the sole legal and beneficial owner of the ChromaDex Shares as set forth in Schedule B, free and clear of any liens, encumbrances, claims or restrictions of any kind, other than applicable securities laws.

(iv) Such Seller is the sole legal and beneficial owner of all and any rights in respect of the Shareholder Loan set forth in Schedule A next to such Seller’s name, free and clear of any liens, encumbrances, claims or restrictions of any kind and such Seller has full power, right and authority to sell and assign the full rights in respect of such Shareholder Loan to the Purchaser;

(v) Such Shareholder Loan represents the entire amount due and owing by the applicable Sale Company to the applicable Seller as set forth in Schedule A.

(vi) Since the date of its incorporation, such Sale Company has not conducted any business, or owned any assets, other than (i) holding the ChromaDex Shares and (ii) carrying out other activities incidental to its incorporation and the maintenance of its corporate existence. Such Sale Company does not have any debt or obligation of any nature, other than the Shareholder Loans and ordinary course expenses required for the incorporation and maintenance of the Sale Company.

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[Signature Page Follows]

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IN WITNESS WHEREOF, the parties hereto have executed this Securities Purchase Agreement as of the day and year first set forth above.

Signature Page to Securities Purchase Agreement

Schedule A

Sale Share

Shareholder Loan to be Assigned

Schedule B

Schedule C

Closing Deliveries

Part I. Sellers’ Deliveries

On the Closing Date, the Sellers shall deliver, or cause to be delivered, to the Purchaser each of the following items:

Part II. Purchaser’s Deliveries

On the Closing Date, the Purchaser shall deliver, or cause to be delivered, to Sellers the following items: