Exhibit 99.1
CERTIFICATION PURSUANT TO
18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002
In connection with the Quarterly Report of Southern Peru Copper Corporation (the “Company”) on Form 10-Q/A for the period ending September 30, 2002 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, German Larrea Mota-Velasco, Chairman and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:
(1) The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934; and
(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.
| /s/ German Larrea Mota-Velasco |
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Date: December 3, 2002 | German Larrea Mota-Velasco | |
| Chairman and Chief Executive Officer | |
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