WINTER PARK, Fla., Dec. 12, 2025 (GLOBE NEWSWIRE) — Integrated Rail and Resources Acquisition Corp., a Delaware corporation (“IRRX”) today announced the completion of its previously announced business combination with Tar Sands Holdings II, LLC, a Utah limited liability company (“TSII”). Upon closing, the combined company will operate under a new parent entity, Uinta Infrastructure Group Corp., a Delaware corporation (“UIGC”), marking the next step in advancing a long-planned infrastructure platform in the Uinta Basin.