Officer and Director Holdings and Power of Attorney

Aylwyn Bryan, Chief Financial Officer of CRH Public Ltd Co, has reported holdings and granted a power of attorney for securities transactions. Bryan acquired 6,678 ordinary shares through restricted share units, with 1/3 vesting annually over three years. These awards, granted in May 2025 and February 2026, are subject to dividend equivalents. Following these transactions, Bryan directly holds 16,286 ordinary shares. The power of attorney, effective May 12, 2026, designates company officers to execute Section 16 and Rule 144 reporting forms on Bryan's behalf, including Forms 3, 4, 5, ID, and 144. This authorization allows the attorneys-in-fact to gather information on company securities transactions and take necessary actions, remaining in effect until Bryan is no longer required to file such reports or until earlier revocation.