MACMAHON HOLDINGS LIMITED — Capital/Financing Update 2012

Dec 6, 2012

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7 December 2012

Macmahon awarded NSW rail underpass contract

Macmahon Holdings Ltd (ASX:MAH) has confirmed that a 50:50 partnership between Macmahon and Bouygues Travaux Publics Australia has been awarded an Alliance contract by the NSW Government to deliver the North Strathfield Rail Underpass project.

The $260 million (Macmahon value $130 million) contract will involve the construction of a new rail underpass, 3.2km of new track, civil and associated rail systems works and an upgrade of Concord West Station

The works form part of the North Sydney Freight Corridor Program, a Commonwealth and NSW government initiative to improve capacity and reliability of freight trains on the Main North Line between Sydney and Newcastle.

The structure of the contract will ensure the joint venture recovers the costs of the project, with the margin to be determined based on performance against pre-agreed targets.

Macmahon Chief Executive Officer Ross Carroll said the project built on the Company’s proven credentials in delivering major infrastructure projects in New South Wales.

“Today’s contract award is a strong endorsement of the Macmahon team in New South Wales, which have successfully delivered a range of public infrastructure projects over recent years,” he said.

The project will employ about 400 people directly, with works to start immediately. Construction is scheduled for completion in late 2015.

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For further information, please contact:

Investor Relations Theresa Mlikota Chief Financial Officer +61 407 470 859 Media Relations Joeley Pettit-Scott Acting Group Communications Manager +61 467 775 376

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About Macmahon

Macmahon is a leading Australian contract mining and construction company with major projects throughout Australia, in New Zealand, South East Asia and Africa.

An ASX listed company, Macmahon has played a major role in the delivery of many of Australia’s largest multi-disciplinary mining and construction projects throughout its 49 year history.

Macmahon offers the full range of underground and surface mining services and comprehensive construction capabilities spanning transport, marine, water and resource infrastructure services.

With a commitment to providing end to end services, Macmahon’s reputation for outstanding teamwork, integrity and commitment to the environment is underpinned by the company’s core value - safety.

Visit www.macmahon.com.au for more information.

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