Macmahon Holdings subsidiary Decmil says a A$120 million road construction contract at Rio Tinto’s West Angelas iron ore operations in Western Australia brings the value of its work with the major to more than $200 million.
The West Angelas Sustaining Project (WASP) contract involves construction of a heavy haulage road, light vehicle access roads and associated drainage works. Work is due to start this month and continue into 2027.
Macmahon said the contract award was made under a newly established earthworks framework agreement with Rio Tinto for projects in the Pilbara region of WA.
“This award brings a total of $201m in civil contract wins for Decmil with Rio Tinto, which generates substantial earnings momentum into the second half of FY26 and FY27,” said Macmahon CEO Michael Finnegan.



