Southern Copper (SCCO) Proxy Filing summary

Executive summary

• Annual meeting scheduled for May 23, 2025, to be held virtually for shareholder participation.

• Supplement issued to clarify voting standards and the effect of broker non-votes and abstentions.

• Shareholders are encouraged to review proxy materials and vote by May 22, 2025.

Voting matters and shareholder proposals

• Election of nine directors is on the agenda, with board recommendations provided for each nominee.

• Proposal to amend and extend the Directors' Stock Award Plan for three years, with approval requiring a majority of votes cast.

• Ratification of the Audit Committee's selection of Galaz, Yamazaki, Ruiz Urquiza S.C. as independent accountants for 2025.

• Advisory (non-binding) vote on executive compensation included.

• Proxies authorized to vote on other matters that may arise at the meeting.

Board of directors and corporate governance

• Board recommends all director nominees for election at the annual meeting.

• Attendance at all board meetings is a condition for directors to receive stock awards under the proposed plan amendment.