• Nigel Stein appointed as new Chair of James Hardie Board of Directors
• Formation of Integration and Performance Committee to oversee AZEK business integration
• Commitment to shareholder engagement and aligning remuneration with performance

James Hardie Industries plc, a leading provider of exterior home and outdoor living solutions, announced the appointment of Nigel Stein as the new Chair of its Board of Directors, effective November 17, 2025. Mr. Stein is an independent non-executive director of James Hardie and serves on the Board's Nominating and Governance Committee. Consistent with the company's commitment to shareholder value creation and supporting the successful integration of the AZEK business, James Hardie also announced the formation of an ad-hoc Integration and Performance Committee of the Board, which will oversee and support the integration, synergy delivery, and overall business performance. The Committee will be chaired by Jesse Singh, a current member of the Board, and will include Aaron Erter, CEO and member of the Board, as well as current Board members Howard Heckes and Persio Lisboa. In his comments, Mr. Stein acknowledged the company's founding as an Australian company and stated that he will travel to Australia for face-to-face meetings to enhance shareholder engagement, identify Australian independent director candidates, and review the company's remuneration practices to align with performance.