EXHIBIT 99.2 CERTIFICATE OF THE CHIEF FINANCIAL OFFICER OF GENTEX CORPORATION Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (18 U.S. C. 1350): I, Enoch C. Jen, Chief Financial Officer of Gentex Corporation, certify, to the best of my knowledge and belief, pursuant to Section 906 of the Sarbanes-Oxley Act 0f 2002 (18 U.S.C. 1350), that: (3) The quarterly report on Form 10-Q for the quarterly period ended March 31, 2003, which this statement accompanies, fully complies with requirements of Section 13(a) or 15(d) of the Securities and Exchange Act of 1934 and; (4) The information contained in this quarterly report on Form 10-Q for the quarterly period ended March 31, 2003, fairly presents, in all material respects, the financial condition and results of operations of Gentex Corporation. GENTEX CORPORATION Dated: May 5, 2003 By: /s/ Enoch C. Jen ------------------ ----------------------------- Enoch C. Jen Its: Vice President - Finance - 25 -