Macmahon Holdings Limited is an Australian mining services and construction company. Founded in 1963, it is listed on the

Australian Securities Exchange Australian Securities Exchange Ltd (ASX) is an Australian public company that operates Australia's primary Exchange (organized market), securities exchange, the Australian Securities Exchange (sometimes referred to outside of Australia as, or c ...

History

Macmahon Holdings was founded in 1963 by Brian Macmahon. Its first mining contract was for excavation works at the Nobles Nob Gold Mine at

Tennant Creek Tennant Creek () is a town located in the Northern Territory of Australia. It is the Northern Territory#Cities and towns, seventh largest town in the Northern Territory, and is located on the Stuart Highway, just south of the intersection with ...

in the

Northern Territory The Northern Territory (abbreviated as NT; known formally as the Northern Territory of Australia and informally as the Territory) is an states and territories of Australia, Australian internal territory in the central and central-northern regi ...

. In 1983 it was listed on the

. In 1987 it acquired FK Kanny & Sons, an

open cut mining Open-pit mining, also known as open-cast or open-cut mining and in larger contexts mega-mining, is a surface mining technique that extracts rock or minerals from the earth. Open-pit mines are used when deposits of commercially useful ore or ro ...

contractor in

Western Australia Western Australia (WA) is the westernmost state of Australia. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to the south, the Northern Territory to the north-east, and South Australia to the south-east. Western Aust ...

. In 1994 it commenced operations in Chile and Malaysia.Our History
Macmahon Holdings In 1994 it purchased

Kalgoorlie Kalgoorlie-Boulder (or just Kalgoorlie) is a city in the Goldfields–Esperance region of Western Australia, located east-northeast of Perth at the end of the Great Eastern Highway. It is referred to as Kalgoorlie–Boulder as the surroundi ...

based underground mining specialist National Mine Management. In 2005, it purchased the Northern Territory operations of Henry Walker Eltin. In 2006, a 60% shareholding in rail contractor MVM Rail was purchased, with COMSA owning the other 40%. In January 2013, Macmahon secured its largest ever contract from

Fortescue Fortescue may refer to: People * Fortescue (surname), a list of people with the name * Fortescue Ash (1882–1956), Anglican bishop in Australia * Fortescue Graham (1794–1880), British Royal Marines general Places * Fortescue, Missouri, United ...

after it was awarded a $1.8 billion contract for the Christmas Creek mine's expansion. The five-year contract would deliver all aspects of mine operations, including drill and blast, overburden removal, ore harvesting, maintenance of equipment and associated services, for the expansion. In December 2012, the construction business was sold to

Leighton Holdings CIMIC Group Limited (formerly Leighton Holdings) is an engineering-led construction, mining, services and public private partnerships leader working across the lifecycle of assets, infrastructure and resources projects. History Founded in 194 ...

. In August 2024, it re-entered the construction sector, acquiring Decmil.

Notable projects

* Dampier to Bunbury Natural Gas Pipeline * Darwin railway line as part of the Asia Pacific Transport Consortium *section of the

Great Northern Highway Great Northern Highway is an Australian highway that links Western Australia's capital city Perth with its northernmost port, Wyndham. With a length of almost , it is the longest highway in Australia, with the majority included as part of the ...

near Broome * Karara railway line *

Mandurah railway line The Mandurah line, also known as the Southern Suburbs Railway, is a suburban railway line and service in Western Australia, linking Perth's central business district (CBD) with Mandurah to the south. Operated by the Public Transport Authority ...

in joint venture with John Holland and

Multiplex Multiplex may refer to: Science and technology * Multiplex communication, combining many signals into one transmission circuit or channel ** Multiplex (television), a group of digital television or radio channels that are combined for broadcast * ...

*section of the

Mitchell Freeway The Mitchell Freeway is a controlled-access highway, freeway in the northern suburbs of Perth, Western Australia, linking Perth (suburb), central Perth with the city of Joondalup. It is the northern section of List of road routes in Western ...

Perth Perth () is the list of Australian capital cities, capital city of Western Australia. It is the list of cities in Australia by population, fourth-most-populous city in Australia, with a population of over 2.3 million within Greater Perth . The ...

* North-South Motorway,

Adelaide Adelaide ( , ; ) is the list of Australian capital cities, capital and most populous city of South Australia, as well as the list of cities in Australia by population, fifth-most populous city in Australia. The name "Adelaide" may refer to ei ...

in joint venture with John Holland *section of the

Roe Highway Roe Highway is a limited-access highway and partial freeway in Perth, Western Australia, linking Kewdale with the city's north-eastern and south-western suburbs. The northern terminus is at Reid Highway and Great Northern Highway in Midd ...

, Perth in joint venture with Transfield *section of the

South Eastern Freeway South Eastern Freeway is a freeway in South Australia (SA). It is a part of the National Highway network linking the state capital cities of Adelaide, SA, and Melbourne, Victoria, and is signed as route M1. It carries traffic over the Adel ...

, Adelaide in joint venture with

Walter Construction Group Walter Construction Group Limited, known for most of its life as Concrete Constructions Pty Ltd, was one of Australia's oldest and fifth largest construction company prior to its 2005 collapse. The company was founded on 21 April 1920 by Allen ...

*section of the

Tonkin Highway Tonkin Highway is an north–south highway and partial freeway in Perth, Western Australia, linking Perth Airport and Kewdale, Western Australia, Kewdale with the city's north-eastern and south-eastern suburbs. As of April 2020, the northern ...

, Perth in joint venture with John Holland

Decmil

Decmil was founded in 1978 in Karratha, Western Australia as Silla Careba, being renamed Decmil in 1983, being a

portmanteau In linguistics, a blend—also known as a blend word, lexical blend, or portmanteau—is a word formed by combining the meanings, and parts of the sounds, of two or more words together.

of its owners, Dennis Criddle and Milan Babic. It was listed on the Australian Securities Exchange in 2005. In August 2024, it was acquired by Macmahon Holdings and

delisted In corporate finance, a listing refers to the company's shares being on the list (or board) of stock that are publicly listed. Some stock exchanges allow shares of a foreign company to be listed and may allow dual listing, subject to conditions. ...

.Decmil Group Limited - Removal from Official List

16 August 2024

References

External links

Official website
{{Mining companies of Australia, state=collapsed Companies based in Perth, Western Australia Companies listed on the Australian Securities Exchange Construction and civil engineering companies established in 1963 Mining services companies of Australia Non-renewable resource companies established in 1963 1963 establishments in Australia