SOUTHERN COPPER CORP/

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 14A

Proxy Statement Pursuant to Section 14(a)**

**of the Securities Exchange Act of 1934

Filed by the Registrant☒

Filed by a Party other than the Registrant☐

Check the appropriate box:

Southern Copper Corporation

(Name of Registrant as Specified in Its Charter)

(Name of Person(s) Filing Proxy Statement, if other than the Registrant)

Payment of Filing Fee (Check all boxes that apply):

April 17, 2026

Dear Stockholder:

We are pleased to invite you to our 2026 Annual Meeting of Shareholders, which will be held virtually on May 29, 2026, at 9:00 A.M. Mexico City time (the “Annual Meeting”).

In Memory of Oscar Gonzalez Rocha

Before sharing the details of our upcoming meeting, we must pause to recognize a profound loss for the Southern Copper Corporation family. On April 13, 2026, we announced the unexpected passing of our former President and CEO, Oscar Gonzalez Rocha. Over his distinguished 50-year career, Oscar was the cornerstone of our company's growth, guiding us with his vision, leadership, and unwavering commitment. Throughout his tenure as Chief Executive Officer, he established a legacy of operational excellence that was instrumental in positioning our company as a leader both in Mexico and worldwide. We are deeply grateful for his many significant contributions to our company. This event triggered our succession plan to maintain continuity of management. The Board of Directors and management team evaluated the company’s options and have appointed Mr. Leonardo Contreras Lerdo de Tejada as Interim Chief Executive Officer.

Our Virtual Annual Meeting

Pursuant to the Securities and Exchange Commission rules, we are furnishing our proxy materials to stockholders via the internet. This approach allows us to deliver essential information while reducing costs and minimizing our environmental impact. While we will not meet in person, we have structured the virtual event to ensure you have the same rights and opportunities to participate as you would at a physical meeting. Through our online tools, you will be able to attend and participate in the meeting online, vote your shares electronically and submit questions both before and during the event.

How to Participate

You are eligible to participate if you were a stockholder at the close of business on the record date ofApril 2, 2026, or if you hold a valid legal proxy for the meeting from your bank, broker, or nominee. Attendance is limited strictly to stockholders or holders of a valid legal proxy. To access the Annual Meeting website, you will need the 16-digit control number found on your proxy card, voting instruction form, or notice.

Your Vote Matters

Your vote is incredibly important to us. We strongly encourage you to vote your shares promptly, whether or not you plan to attend the virtual meeting. You do not need to attend to make your vote count. You may submit your proxy and voting instructions via the internet by following the directions on the Annual Meeting website. Alternatively, if you received paper materials, simply sign, date, and return your proxy or voting instruction card in the prepaid envelope provided.

The accompanying Annual Meeting Notice and the Proxy Statement provide specific information about the Annual Meeting and explain the various proposals, the Director nominees, accessing the virtual meeting and voting your shares. Please read these materials carefully. We sincerely appreciate your continued confidence in Southern Copper Corporation and look forward to your virtual attendance on May 29, 2026.

Sincerely,

Germán Larrea Mota-Velasco

Chairman of the Board of Directors

NOTICE OF ANNUAL MEETING OF STOCKHOLDERS

To Be Held on May 29, 2026

To the Stockholders of Southern Copper Corporation:

The annual meeting of stockholders of Southern Copper Corporation will be held on May 29, 2026, at 9:00 A.M., Mexico City time (the “Annual Meeting”), and on any adjournment thereof. This year’s meeting will be held via a live audio webcast. There is no physical location for the Annual Meeting. You will be able to attend and participate in the Annual Meeting online, vote your shares electronically and submit your questions prior to and during the meeting by visiting: www.virtualshareholdermeeting.com/SCCO2026. The purpose of the Annual Meeting of stockholders of Southern Copper Corporation is:

Only stockholders of record at the close of business on April 2, 2026, will be entitled to vote at the Annual Meeting and at any adjournment or postponement of the meeting. A list of these stockholders will be made available electronically at: www.virtualshareholdermeeting.com/SCCO2026.

REVIEW THE PROXY STATEMENT AND VOTE ELECTRONICALLY BY VISITING:www.virtualshareholdermeeting.com/SCCO2026. YOU MAY ALSO VOTE BY MAIL BYsigning, dating, and returning the enclosed proxy card in the envelope provided. You may also vote by attending the Annual Meeting virtually.

Important Notice Regarding Internet Availability of Proxy Materials and Annual Report. The Proxy Statement, proxy card and Annual Report on Form 10-K are available at www.proxyvote.com.If you wish to attend the virtual meeting and vote your shares visit****www.virtualshareholdermeeting.com/SCCO2026.

Phoenix, Arizona, April 17, 2026

Your Vote is Important

Vote Online or

Mark, sign, date, and return your enclosed proxy card