GENTEX CORP

The Company’s Board of Directors (the "Board") is soliciting proxies for the 2025 Annual Meeting. A proxy is your authorization for someone else to vote on your behalf in the way you want to vote and allows you to be represented at the Annual Meeting even if you are unable to attend. A Proxy Statement is the document the United States Securities and Exchange Commission ("SEC") requires and the Company provides to explain the matters you are being asked to vote on by proxy and to disclose certain relevant information.

On or about April 3, 2025, the Company mailed to shareholders of record as of March 17, 2025 (other than those who previously requested electronic delivery), a Notice of Internet Availability of Proxy Materials ("Notice") containing instructions on how to access the Proxy Statement and Annual Report for the year ended December 31, 2024. If you received a Notice by mail, you will not receive a printed copy of the proxy materials in the mail. The Notice instructs you on how to electronically access and review all the proxy materials, and these materials are available at https://www.proxyvote.com. The Notice also includes instructions about how you may request to receive proxy materials in printed form on a one-time or on-going basis.