Form 8-K Filing by CRH plc

On April 28, 2026, Arkhola Materials, a subsidiary of CRH plc, received a Section 107(a) imminent danger order from the Mine Safety and Health Administration (MSHA) at its Okay Quarry in Okay, Oklahoma. The order was issued because an employee stood on a handrail approximately 20 feet off the ground without fall protection. Immediate corrective actions were taken, and no injuries occurred. MSHA confirmed that fall protection equipment and a manlift were available, and the employee had received fall protection training. The order was subsequently terminated by MSHA. This filing is made pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934.