James Hardie Industries plc — Major Shareholding Notification 2022

Sep 6, 2022

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James Hardie Industries plc Europa House 2nd Floor, Harcourt Centre Harcourt Street, Dublin 2, D02 WR20, Ireland

T: +353 (0) 1 411 6924 F: +353 (0) 1 479 1128

7 September 2022

The Manager Company Announcements Office Australian Securities Exchange Limited 20 Bridge Street SYDNEY NSW 2000

Dear Sir/Madam

Substantial Holding Notice

As required under ASX Listing Rule 3.17.3 please see attached a copy of the substantial holding notice received by James Hardie on 6 September 2022.

Regards

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Joseph C. Blasko General Counsel & Company Secretary

This announcement has been authorised for release by the General Counsel and Company Secretary, Mr Joseph C. Blasko.

James Hardie Industries plc is a limited liability company incorporated in Ireland with its registered office at Europa House 2[nd] Floor, Harcourt Centre, Harcourt Street, Dublin 2, D02 WR20, Ireland. Directors: Michael Hammes (Chairman, USA), Anne Lloyd (Deputy Chairperson, USA), Peter-John Davis (Aus), Persio Lisboa (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