QuickLinks -- Click here to rapidly navigate through this documentExhibit 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 Annual Report of Tesma International Inc. (the "Company") on Form 40-F for the fiscal year ended July 31, 2002, as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, Manfred Gingl, Vice-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 to the best of my knowledge:
- 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.
Date: December 11, 2002
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CERTIFICATION PURSUANT TO 18 U.S.C. SECTION 1350, AS ADOPTED PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002