Name of Corporation

  ​ ​ ​

Jurisdiction of
Incorporation or
Organization

  ​ ​ ​

% of Voting
Securities
Held at December 31,
2025

​

​

​

​

​

CompX Security Products Inc.

​

Delaware

​

100

​

​

​

​

​

CompX Marine Inc.

​

Delaware

​

100

Custom Marine Inc.

​

Delaware

​

100

JZTB Realty LLC

​

Wisconsin

​

100

Livorsi Marine Inc.

​

Illinois

​

100