MONADELPHOUS GROUP LIMITED — Board/Management Information 2021

Oct 10, 2021

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11 October 2021

Company Announcements Australian Securities Exchange Limited Level 4, 20 Bridge Street SYDNEY NSW 2000 AUSTRALIA

Dear Sir / Madam

RE: NON-EXECUTIVE DIRECTOR CHANGES

Please find attached an announcement to be issued today by Monadelphous Group Limited regarding the resignation and appointment of Non-Executive Directors to the Company’s Board and a change of the Company’s Deputy Chair / Lead Independent Non-Executive Director.

Authorised by

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Philip Trueman Company Secretary

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ASX RELEASE

11 October 2021

NON-EXECUTIVE DIRECTOR CHANGES

Retirement of Non-Executive Director

Mr Christopher Michelmore has provided notice of his intention to retire as a Non-Executive Director of Monadelphous (“Monadelphous” or “the Company”) effective at the close of the Company’s Annual General Meeting on 23 November 2021.

Chris was appointed to the Board of Monadelphous in October 2007. He has been a highly valued member of the Board and its subcommittees throughout his 14-year term with Monadelphous, including in his role as Chair of the Remuneration Committee where he has led the development of the Company’s remuneration framework and practices.

Chris’ depth of industry experience and strong alignment to the Company’s values has contributed significantly to the ongoing development of Monadelphous’ strategic plan, developing initiatives and strategies designed to successfully ensure the Company’s continued growth and success. He has also played an active role in the identification and management of areas of significant business risk.

Mr John Rubino, Chair of Monadelphous Group Limited, said “On behalf of the Board of Monadelphous I would like to sincerely thank Chris for his loyalty, hard work, dedication and commitment over the last 14 years.

He has played a key role in the Company’s success over that time, actively guiding and monitoring the business and affairs of Monadelphous.

I would like to take this opportunity to wish him the very best in his retirement and sincerely thank him for the wonderful contribution he has made to Monadelphous over such a long period of time.”

Ms Sue Murphy AO has replaced Mr Michelmore as Chair of the Company’s Remuneration Committee, effective 1 October 2021, following his resignation from this role on 30 September 2021.

Appointment of Non-Executive Director

The Company is pleased to announce the appointment of Mr Enrico (Ric) Buratto as a Non-Executive Director of the Company, effective 11 October 2021.

Mr Buratto has more than 45 years of contracting experience in the resources and infrastructure sectors, having enjoyed a distinguished executive career at various ASX listed companies including Cimic, Decmil, and most recently, NRW.

Mr Buratto holds a Bachelor of Engineering (Civil) (Honours) from The University of Adelaide. He has extensive leadership and management experience in engineering, mining and construction across a wide range of disciplines including earthworks, marine, civil, structural, mechanical and piping construction, as well as maintenance and shutdown execution.

“I am delighted to announce the appointment of Ric to the Board of Monadelphous" Mr Rubino said. “Ric brings an abundance of industry knowledge, experience and relationships, and complements the existing capabilities of the Board. Ric’s skills and competencies will support the Company to achieve its strategic objectives as well as adding significant value to the overall Board composition.”

Change of Deputy Chair / Lead Independent Non-Executive Director

The Company announces that Ms Sue Murphy AO has replaced Mr Peter Dempsey as Deputy Chair / Lead Independent Non-Executive Director of the Company, effective 11 October 2021. Mr Dempsey will continue to act as an independent Non-Executive Director.

Further Information Analysts/Investors Media Kristy Glasgow Ella McCarthy Investor Relations Group Manager - Marketing and Communications T +61 8 9316 6386 T +61 8 6311 1018 M +61 403 781 909 M +61 401 404 874 Investor_relations@monadel.com.au EMcCarthy@monadel.com.au

About Monadelphous

Monadelphous Group Limited (ASX: MND) is a leading Australian engineering group providing construction, maintenance and industrial services to the resources, energy and infrastructure sectors. The Company has two operating divisions − Engineering Construction, providing large-scale multidisciplinary project management and construction services, and Maintenance and Industrial Services, specialising in the planning, management and execution of mechanical and electrical maintenance services, shutdowns, fixed plant maintenance services and sustaining capital works.

Monadelphous is headquartered in Perth, Western Australia, with a major office in Brisbane, Queensland, and offices, projects, facilities and workshops across Australia and in New Zealand, China, Mongolia, Papua New Guinea, Chile and the Philippines. Please visit www.monadelphous.com.au for further information.