EXHIBIT 32.1
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 Jabil Circuit, Inc. (the “Company”) on Form 10-Q for the fiscal quarter ended May 31, 2008 as filed with the Securities and Exchange Commission on the date hereof (the “Form 10-Q”), I, Timothy L. Main, President and Chief Executive Officer of the Company, hereby 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 Form 10-Q fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 (15 U.S.C. 78m or 78o(d)); and
(2) The information contained in the Form 10-Q fairly presents, in all material respects, the financial condition and results of operations of the Company.
| Date: July 8, 2008 | /s/ TIMOTHY L. MAIN | |
| Timothy L. Main | ||
| President and Chief Executive Officer |