MACMAHON HOLDINGS LIMITED — Share Issue/Capital Change 2021

Sep 20, 2021

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21 September 2021

Further Release of Shares from Voluntary Escrow

In accordance with ASX Listing Rule 3.10A, Macmahon Holdings Limited (ASX: MAH) ( Macmahon ) advises that an additional 2,116,657 fully paid ordinary shares ( Shares ) will be released from voluntary escrow on 30 September 2021.

The Shares were provided to the vendors of TMM Group, a business providing civil construction, operations and maintenance services, as part of the consideration for the acquisition of TMM Group by Macmahon in February 2018 (refer to ASX Announcement “Macmahon to acquire TMM Group” dated 13 February 2018).

This announcement was authorised for release by Greg Gettingby, the Chief Development Officer and Company Secretary.

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For further information, please contact:

Chris Chong Manager – Corporate Development and Investor Relations cchong@macmahon.com.au +61 8 9232 1877 / +61 408 774 365

About Macmahon

Macmahon is an ASX listed company offering the complete package of mining services to miners throughout Australia and Southeast Asia.

Macmahon’s extensive experience in both surface and underground mining has established the Company as the contractor of choice for resources projects across a range of locations and commodity sectors.

Macmahon is focused on developing strong relationships with its clients whereby both parties work in an open, flexible and transparent way to ensure mutually beneficial outcomes whilst also minimising risks for both parties.

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

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