Webcast Alert: Gentex Corporation Announces First Quarter 2006 Earnings Call

ZEELAND, Mich., April 13 -- Gentex Corporation announces the following Webcast:

  What:     First Quarter 2006 Earnings Call

  When:     April 20, 2006 @ 11 a.m. ET

  Where:    http://www.gentex.com/

  How:      Live over the Internet -- Simply log on to the web at the
            address above.

  Contact:  Lisa Richlich
            Investor Relations
            616-772-1590, ext. 207
            Fax: 616-772-7348
            Email: lisa.richlich@gentex.com

If you are unable to participate during the live webcast, the call will be archived at http://www.gentex.com/ . To access the replay, click on Investor Information Audio Archive.

Founded in 1974, Gentex Corporation (The Nasdaq Stock Market: GNTX) is an international company that provides high-quality products to the worldwide automotive industry and North American fire protection market. Based in Zeeland, Michigan, the company develops, manufactures and markets interior and exterior automatic-dimming automotive rearview mirrors that utilize proprietary electrochromic technology to dim in proportion to the amount of headlight glare from trailing vehicle headlamps. Many of the mirrors are sold with advanced electronic features, and approximately 95 percent of the Company's revenues are derived from the sales of auto-dimming mirrors to nearly every major automaker in the world.