CRH: Material agreement · Company disclosure · Other company developments

Item 1.01 Entry into a Material Definitive Agreement. Merger Agreement On June 21, 2026, CRH Americas, Inc. (‘Parent’), a Delaware corporation and indirect wholly owned subsidiary of CRH public limited company (‘CRH,’ ‘we,’ ‘our’ or ‘us’), Neon Merger Sub, Inc., a Delaware corporation and wholly owned subsidiary of Parent (‘Merger Sub’), and Arcosa, Inc., a Delaware corporation (‘Arcosa’), entered into an Agreement and Plan of Merger (the ‘Merger Agreement’), pursuant to which, subject to the terms and conditions set forth therein, Merger Sub will merge with and into Arcosa, with Arcosa being the surviving entity and becoming a wholly owned subsidiary of Parent (the ‘Merger’). Capitalized terms used but not otherwise defined herein have the meanings ascribed to them in the Merger Agreement, which is attached hereto as Exhibit 2.1. Merger Consideration On the terms and subject to the conditions set forth in the Merger Agreement, at the effective time of the Merger (the ‘Effective Time’), each share of Arcosa common stock, par value $0.01 per share (the ‘Arcosa Common Stock’), issued and outstanding immediately prior to the Effective Time (other than any restricted Arcosa Common Stock awards granted under Arcosa’s equity plan, Cancelled Shares and any Dissenting Shares) will be automatically converted into the right to receive $150.00 in cash, without interest and subject to applicable withholding taxes (the ‘Merger Consideration’). Pursuant to the Merger Agreement, at the Effective Time, each Arcosa restricted stock unit award covering shares of Arcosa Common Stock and each share of restricted Arcosa Common Stock, in each case granted prior to the date of the Merger Agreement and outstanding as of the date of the Merger Agreement (each, an ‘Arcosa Equity Award’), will be