NSU Nevsun Resources Ltd Ordinary Shares

As filed with the United States Securities and Exchange Commission on November 9, 2018

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

AMENDMENT NO. 1

TO

SCHEDULE 14D-1F

TENDER OFFER STATEMENT PURSUANT TO RULE 14d-1(b)

UNDER THE SECURITIES EXCHANGE ACT OF 1934

NEVSUN RESOURCES LTD.

(Name of Subject Company)

British Columbia, Canada

(Jurisdiction of Subject Company’s Incorporation or Organization)

1172628 B.C. LTD.

a wholly owned subsidiary of

LUNDIN MINING CORPORATION

(Bidder)

Common Shares

(Title of Class of Securities)

64156L101

(CUSIP Number of Class of Securities)

Annie Laurenson

Lundin Mining Corporation

150 King Street West

Suite 2200

Toronto, Ontario

Canada M5H 1J9

Telephone: (416) 342-5560

(Name, address (including zip code) and telephone number (including area code)

of person(s) authorized to receive notices and communications on behalf of bidder)

July 26, 2018

(Date tender offer published, sent or given to security holders)

PART III — UNDERTAKINGS AND CONSENT TO SERVICE OF PROCESS

1. Undertakings

(a) The bidder undertakes to make available, in person or by telephone, representatives to respond to inquiries made by the Commission staff, and to furnish promptly, when requested to do so by the Commission staff, information relating to this Schedule or to transactions in said securities.

(b) The bidder undertakes to disclose in the United States, on the same basis as it is required to make such disclosure pursuant to applicable Canadian federal and/or provincial or territorial laws, regulations or policies, or otherwise discloses, information regarding purchases of the issuer’s securities in connection with the offer. Such information shall be set forth in amendments to this Schedule.

2. Consent to Service of Process

(a) At the time of initially filing this Schedule, the bidder filed with the Commission a written irrevocable consent and power of attorney on Form F-X.

(b) Any change to the name or address of the registrant’s agent for service shall be communicated promptly to the Commission by amendment to Form F-X referencing the file number of the registrant.

PART IV — SIGNATURES

By signing this Schedule, Lundin Mining Corporation consents without power of revocation that any administrative subpoena may be served, or any administrative proceeding, civil suit or civil action where the cause of action arises out of or relates to or concerns any offering made or purported to be made in connection with the filing on Schedule 14D-1F or any purchases or sales of any security in connection therewith, may be commenced against it in any administrative tribunal or in any appropriate court in any place subject to the jurisdiction of any state or of the United States by service of said subpoena or process upon its designated agent.

After due inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

By signing this Schedule, 1172628 B.C. LTD. consents without power of revocation that any administrative subpoena may be served, or any administrative proceeding, civil suit or civil action where the cause of action arises out of or relates to or concerns any offering made or purported to be made in connection with the filing on Schedule 14D-1F or any purchases or sales of any security in connection therewith, may be commenced against it in any administrative tribunal or in any appropriate court in any place subject to the jurisdiction of any state or of the United States by service of said subpoena or process upon its designated agent.

After due inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.