James Hardie Industries plc 1st Floor, Block A, One Park Place, Upper Hatch Street, Dublin 2, D02 FD79, Ireland T: +353 (0) 1 411 6924 F: +353 (0) 1 479 1128 James Hardie Industries plc is a limited liability company incorporated in Ireland with its registered office at 1st Floor, Block A, One Park Place, Upper Hatch Street, Dublin 2, D02 FD79, Ireland. Directors: Anne Lloyd (Chairperson, USA), Peter-John Davis (Aus), Persio Lisboa (USA), Renee Peterson (USA), Rada Rodriguez (Sweden), Suzanne B. Rowland (USA), Nigel Stein (UK), Harold Wiens (USA). Chief Executive Officer and Director: Aaron Erter (USA) Company number: 485719 ARBN: 097 829 895 4 August 2023 The Manager Company Announcements Office Australian Securities Exchange Limited 20 Bridge Street SYDNEY NSW 2000 Results of 2023 Annual General Meeting Dear Sir/Madam We advise that all resolutions set out in the Notice of the Annual General Meeting dated 10 July 2023, were carried at the Annual General Meeting of James Hardie Industries plc held in Dublin, Ireland on 3 August 2023 (Dublin time). Details of votes cast are set out on the following page. Regards Aoife Rockett Company Secretary This announcement has been authorised for release by the Company Secretary, Ms Aoife Rockett.

Results of AGM Resolutions voted on at the meeting If decided by poll Proxies received Resolution Result Voting method If s250U applies Voted for Voted against Abstained For Against Abstain Discretion No Short description Number % Number % Number Number Number Number Number 1 Financial Statements and Reports Passed Poll n/a 337,393,572 99.99 28,280 0.01 3,571,138 337,080,190 28,280 3,571,138 313,382 2 Remuneration Report Passed Poll n/a 301,514,035 88.92 37,570,843 11.08 1,908,111 301,207,013 37,570,843 1,908,111 307,022 3(a) R Peterson election Passed Poll n/a 340,634,217 99.94 205,996 0.06 152,775 340,314,092 205,996 152,775 320,125 3(b) N Stein re-election Passed Poll n/a 297,224,290 87.20 43,615,374 12.80 153,323 296,910,511 43,615,374 153,323 313,779 3(c) H Wiens re-election Passed Poll n/a 339,934,720 99.73 908,343 0.27 149,923 339,608,942 908,343 149,923 325,778 4 Fix external auditor remuneration Passed Poll n/a 339,288,438 99.54 1,555,367 0.46 149,180 338,971,061 1,555,367 149,180 317,377 5 Grant ROCE RSUs to A Erter Passed Poll n/a 305,722,143 89.68 35,164,299 10.32 106,542 305,408,294 35,164,299 106,542 313,849 6 Grant Relative TSR RSUs to A Erter Passed Poll n/a 313,116,205 91.85 27,770,236 8.15 106,542 312,802,357 27,770,236 106,542 313,848 7 Renewal of the James Hardie 2020 Non-Executive Director Equity Plan and issue of shares thereunder Passed Poll n/a 330,611,367 96.98 10,288,060 3.02 93,555 330,304,355 10,288,060 93,555 307,012 8 Renewal of authority for directors to allot and issue James Hardie shares Passed Poll n/a 319,999,063 93.87 20,901,600 6.13 92,318 319,685,107 20,901,600 92,318 313,956 9 Renewal of authority for directors to issue shares for cash without first offering shares to existing shareholders Passed Poll n/a 317,433,306 93.12 23,468,443 6.88 91,231 317,126,294 23,468,443 91,231 307,012