MONADELPHOUS GROUP LIMITED — Capital/Financing Update 2022

Apr 13, 2022

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14 April 2022

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

Dear Sir / Madam

RE: MONADELPHOUS CONTRACTS UPDATE

Please find attached a copy of an announcement to be issued today by Monadelphous Group Limited regarding the award of new contracts and contract extensions in the resources and energy sectors valued at approximately $230 million in total.

Authorised by

Philip Trueman Company Secretary

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ASX RELEASE

14 April 2022

MONADELPHOUS CONTRACTS UPDATE

Engineering company Monadelphous Group Limited (ASX: MND) (“Monadelphous” or “the Company”) today announced it has secured a number of new contracts and contract extensions in the resources and energy sectors in Australia and Papua New Guinea totalling approximately $230 million.

The Company has secured a contract with Rio Tinto for the provision of shutdown works at the Greater Tom Price operation in the Pilbara region of Western Australia. The work includes upgrades and modifications to existing process plant infrastructure at the Western Turner Syncline Phase 2 project. This work is expected to be completed in the second half of 2022.

Also in Western Australia, Monadelphous has secured a three-year contract to continue providing operation and maintenance services at Synergy’s Muja Power Station in Collie, as well as a two-year extension to provide maintenance, turnarounds and brownfields modifications at a customer’s offshore liquefied natural gas facility.

In Queensland, the Company has secured a three-year contract with Origin to provide turnaround and shutdown support services at their coal seam gas upstream facilities for Australia Pacific LNG operations.

In New South Wales, Monadelphous has secured a multi-disciplinary construction services contract with Tronox Mining Australia in Broken Hill. The work is expected to be completed in the second half of 2022.

Finally, in Papua New Guinea, Monadelphous has been awarded a contract with Newcrest to provide engineering, procurement and construction services on the CCD 3 & 4 Refurbishment Project at Lihir Island. The work, which includes the major overhaul of two tanks associated with the gold production facilities, is expected to commence onsite in July 2022 and be completed in mid-2023.

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

With 50 years’ experience, 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 China, Mongolia, Papua New Guinea, Chile and the Philippines. Please visit www.monadelphous.com.au for further information.

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