EXHIBIT 21.1
Published on April 14, 2026
Exhibit 21.1
Subsidiaries of the Registrant
| Subsidiary | Jurisdiction of Incorporation or Formation | |
| Haymaker Acquisition Corp. 4 | Delaware | |
| Concrete Partners Holding, LLC | Delaware | |
| Concrete Partners, LLC | Delaware | |
| Eagle Concrete Holdings, LLC | Delaware | |
| Eagle Redi-Mix Concrete, LLC | Oklahoma | |
| RAM Transportation, LLC | Oklahoma | |
| Schwarz Sand, LLC | Oklahoma |