UPDATE 1.55pm: RCR Tomlinson says it has won $125 million in new strategically-important contracts in its resources and infrastructure businesses.
RCR Resources won a bid for the $70 million expansion of another underground mine with Glencore's Ernest Henry mine project in North West Queensland.
Work will begin immediately with completion expected in the second quarter of calendar 2014.
The same unit has also won an extension job at Newcrest Mining's Cadia Valley operations in New South Wales, again for specialised underground mine work.
The division has also won its first iron ore in-pit crushing and conveying plant contract with Rio Tinto at its MESA J mining operations at Pannawonica in the Pilbara.
The project is expected to be completed by March 2015.
RCR's managing director Paul Dalgleish said the contracts would contribute significantly to this year's revenues and ensure another consecutive year of growth.
"RCR continues to experience good revenue growth from complex engineering and technology-led projects that require specialist intellectual property," he said.
"Combining our resources and infrastructure businesses into a vertically integrated package to deliver projects like that underway at Ernest Henry Mine is an attractive contracting model that many clients are now seeking," he said.RCR shares closed down six cents, or 1.7 per cent, at $3.47.