CompX International Inc.

Submission of Matters to a Vote of Security Holders. ​ The registrant held its 2024 annual meeting of stockholders on May 22, 2024. At the 2024 annual meeting,

, and the exhibit in Item 9.01, is not deemed “filed” for purposes of section 18 of the Securities Exchange Act of 1934, as amended, or otherwise subject to the

Financial Statements and Exhibits. ​ ​ ​ (d) Exhibits ​ ​ ​ ​ ​ ​ ​ Item No. ​ Description ​ ​ ​ ​ ​ 99.1 ​ Press release dated May 22, 2024 issued by the regis