Gentex Declares Quarterly Cash Dividend

ZEELAND, MI--(Marketwire - August 18, 2009) - Gentex Corporation (NASDAQ: GNTX), the Zeeland,
Michigan-based manufacturer of automatic-dimming automotive rearview
mirrors and commercial fire protection products, today announced that its
Board of Directors recently declared a quarterly cash dividend of $0.11 (11
cents) per share that will be payable October 16, 2009, to shareholders of
record of the common stock at the close of business on October 7, 2009. The
ex-dividend date is October 5, 2009. Due to the required period of time
for the settlement of stock trades, this means that a holder must have
purchased shares of Gentex common stock on or before October 2, 2009, in
order to receive this cash dividend.

About the Company

Founded in 1974, Gentex Corporation (NASDAQ: 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 96 percent of the
Company's revenues are derived from the sales of auto-dimming mirrors to
nearly every major automaker in the world.