EX-21 3 cmt-20241231x10kex21.htm EX-21
Exhibit 21
SUBSIDIARIES OF REGISTRANT
The Company’s principal affiliates as of December 31, 2024 are listed below. All other affiliates, if considered in the aggregate as a single affiliate, would not constitute a significant subsidiary.

| Percentage of voting securities directly or indirectly owned by registrant | State or Country of incorporation or organization
Core Composites Corporation | 100 | Delaware
Horizon Plastics International Inc. | 100 | Canada