of this Form 8-K. ​ ​ ​ 104 ​ Cover Page Interactive Data File (embedded within the inline XBRL document) ​ ​ 3 SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ​ ​ ​ SOUTHERN COPPER CORPORATION ​ ​ ​ ​ ​ By: /s/ Andres Carlos Ferrero ​ Name: Andres Carlos Ferrero ​ Title: General Counsel ​ Date: July 21, 2026 ​ 4

Entry into a Material Definitive Agreement . On June 24, 2026, Southern Copper Corporation (the “Company”) completed a registered public offering (the “Offering”) of U.S.$1.25 billion aggregate principal amount of its 5.350% notes due 2036 (the “Notes”). The Notes will bear interest from June 24, 2026, payable semi-annually on June 24 and December 24 of each year, beginning on December 24, 2026. The Notes were offered by the Company pursuant to its Registration Statement on Form S-3 (File No.…

Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant . The information set forth under “

President, Chief Executive Officer, and Board member — Oscar Gonzalez Rocha: The unexpected passing of Oscar Gonzalez Rocha, the Company’s President, Chief Executive Officer, and Board member.

of this Form 8-K. ​ ​ ​ 104 ​ Cover Page Interactive Data File (embedded within the inline XBRL document) ​ ​ 3 SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ​ ​ ​ SOUTHERN COPPER CORPORATION ​ ​ ​ ​ ​ By: /s/ Andres Carlos Ferrero ​ Name: Andres Carlos Ferrero ​ Title: General Counsel ​ Date: April 29, 2026 ​ 4

President and Chief Executive Officer — Oscar Gonzalez Rocha: The unexpected passing of Oscar Gonzalez Rocha, the Company’s President and Chief Executive Officer.

of this Form 8-K. ​ ​ ​ 104.1 ​ Cover Page Interactive Data File (embedded within the inline XBRL document) ​ ​ 3 SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ​ ​ ​ SOUTHERN COPPER CORPORATION ​ ​ ​ ​ ​ By: /s/ Andres Carlos Ferrero ​ Name: Andres Carlos Ferrero ​ Title: General Counsel ​ Date: January 28, 2026 ​ 4

of this Form 8-K. ​ ​ ​ 104.1 ​ Cover Page Interactive Data File (embedded within the inline XBRL document) ​ ​ 3 SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ​ ​ ​ SOUTHERN COPPER CORPORATION ​ ​ ​ ​ ​ By: /s/ Andres Carlos Ferrero ​ Name: Andres Carlos Ferrero ​ Title: General Counsel ​ Date: October 29, 2025 ​ 4

of this Form 8-K. ​ ​ ​ 104.1 ​ Cover Page Interactive Data File (embedded within the inline XBRL document) ​ ​ 3 SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ​ ​ ​ SOUTHERN COPPER CORPORATION ​ ​ ​ ​ ​ By: /s/ Andres Carlos Ferrero ​ Name: Andres Carlos Ferrero ​ Title: General Counsel ​ Date: July 29, 2025 ​ 4

Executive Vice President — Mr. Patricio Ovejas Simon: Mr. Patricio Ovejas Simon was promoted to Executive Vice President.

of this Form 8-K. ​ ​ ​ 104 ​ Cover Page Interactive Data File (embedded within the inline XBRL document) ​ ​ 3 SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ​ ​ ​ SOUTHERN COPPER CORPORATION ​ ​ ​ ​ ​ By: /s/ Andres Carlos Ferrero ​ Name: Andres Carlos Ferrero ​ Title: General Counsel ​ Date: April 25, 2025 ​ 4

Vice President, Explorations — Juan Fernando Nuñez Chávez: Mr. Juan Fernando Nuñez Chávez was promoted to Vice President, Explorations.

of this Form 8-K. ​ ​ ​ 104 ​ Cover Page Interactive Data File (embedded within the inline XBRL document) ​ ​ 3 SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ​ ​ ​ SOUTHERN COPPER CORPORATION ​ ​ ​ ​ ​ By: /s/ Andres Carlos Ferrero ​ Name: Andres Carlos Ferrero ​ Title: General Counsel ​ Date: February 12, 2025 ​ 4

Other Events. On February 5, 2025, Minera Mexico, S.A. de C.V. (“Minera Mexico” or the “Company”), an indirect subsidiary of Southern Copper Corporation, priced US$1.0 billion aggregate principal amount of 5.625% Senior Notes due 2032, in an unregistered offering pursuant to Rule 144A and Regulation S under the Securities Act of 1933. The transaction is expected to close on February 12, 2025, subject to customary closing conditions. The Company intends to use the net proceeds from this offeri…

Results of Operations and Financial Condition On October 21, 2024, Southern Copper Corporation issued a press release announcing financial results for the third quarter ended on September 30, 2024.

Director — Mr. Gilberto Perezalonso Cifuentes: Resigned to pursue other professional interests.

of this Form 8-K. ​ ​ ​ 104 ​ Cover Page Interactive Data File (embedded within the inline XBRL document) ​ ​ 3 SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ​ ​ ​ SOUTHERN COPPER CORPORATION ​ ​ ​ ​ ​ By: /s/ Andres Carlos Ferrero ​ Name: Andres Carlos Ferrero ​ Title: General Counsel ​ Date: October 22, 2024 ​ 4

of this Form 8-K. ​ ​ ​ 104.1 ​ Cover Page Interactive Data File (embedded within the inline XBRL document) ​ ​ 3 SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ​ ​ ​ SOUTHERN COPPER CORPORATION ​ ​ ​ ​ ​ By: /s/ Andres Carlos Ferrero ​ Name: Andres Carlos Ferrero ​ Title: General Counsel ​ Date: July 19, 2024 ​ 4

of this Form 8-K. ​ ​ ​ 104.1 ​ Cover Page Interactive Data File (embedded within the inline XBRL document) ​ ​ 3 SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ​ ​ ​ SOUTHERN COPPER CORPORATION ​ ​ ​ ​ ​ By: /s/ Andres Carlos Ferrero ​ Name: Andres Carlos Ferrero ​ Title: General Counsel ​ Date: April 25, 2024 ​ 4

of this Form 8-K . ​ ​ ​ 104.1 ​ Cover Page Interactive Data File (embedded within the inline XBRL document) ​ ​ 3 SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ​ ​ ​ SOUTHERN COPPER CORPORATION ​ ​ ​ ​ ​ By: /s/ Andres Carlos Ferrero ​ Name: Andres Carlos Ferrero ​ Title: General Counsel ​ Date: February 2, 2024 ​ 4

of this Form 8-K. ​ ​ ​ 104.1 ​ Cover Page Interactive Data File (embedded within the inline XBRL document) ​ ​ 3 SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ​ ​ ​ SOUTHERN COPPER CORPORATION ​ ​ ​ ​ ​ By: /s/ Andres Carlos Ferrero ​ Name: Andres Carlos Ferrero ​ Title: General Counsel ​ Date: October 25, 2023 ​ 4

of this Form 8-K. ​ ​ ​ 104.1 ​ Cover Page Interactive Data File (embedded within the inline XBRL document) ​ ​ 3 SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ​ ​ ​ SOUTHERN COPPER CORPORATION ​ ​ ​ ​ ​ By: /s/ Andres Carlos Ferrero ​ Name: Andres Carlos Ferrero ​ Title: General Counsel ​ Date: July 28, 2023 ​ 4

of this Form 8-K. ​ ​ ​ 104.1 ​ Cover Page Interactive Data File (embedded within the inline XBRL document) ​ ​ 3 SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ​ ​ ​ SOUTHERN COPPER CORPORATION ​ ​ ​ ​ ​ By: /s/ Andres Carlos Ferrero ​ Name: Andres Carlos Ferrero ​ Title: General Counsel ​ Date: April 27, 2023 ​ 4

of this Form 8-K. ​ ​ ​ 104.1 ​ Cover Page Interactive Data File (embedded within the inline XBRL document) ​ ​ 3 SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. ​ ​ ​ SOUTHERN COPPER CORPORATION ​ ​ ​ ​ ​ By: /s/ Andres Carlos Ferrero ​ Name: Andres Carlos Ferrero ​ Title: General Counsel ​ Date: February 3, 2023 ​ 4

Results of Operations and Financial Condition On October 27, 2022, Southern Copper Corporation (“SCC”) issued a press release announcing financial results for the quarter ended on September 30, 2022. In this press release, SCC reported that on October 20, 2022, the Board of Directors authorized a dividend of $0.50 per share payable on November 23, 2022, to shareholders of record at the close of business on November 9, 2022. A copy of this press release is attached hereto as Exhibit 99.1. The…