The record result was based on a 34% year-on-year increase in revenue over the period to $367.5 million, and a 14% increase in adjusted earnings to $43.3 million.

“The performance was primarily due to continued workflow from our traditional blue-chip clients in Western Australia, as well as the contribution from our recently acquired asset management business, G&S, which is preforming well,” Calibre MD Rod Baxter said.

“Following the completion and consolidation of the G&S acquisition, we have been making good progress toward driving a wide range of group-wide strategic benefits from our expanded diversified base.”

G&S received a $46 million project award for construction of coal stackers and reclaimers at BHP Billiton Mitsubishi Alliance’s Caval Ridge project in Queensland’s Bowen Basin. This increased Calibre’s asset management activity by 28% over the half year.

The Perth-based mining services company said, however, that growth was primarily driven by its work in WA’s Pilbara region.

New awards during the period included the $150 million service order from Rio Tinto Iron Ore for its Yandicoogina mine and a order to complete a preliminary feasibility study for the mining giant’s proposed Koodaideri mine.

Calibre recorded a 55% increase in revenue in its minerals and energy business to $186.2 million on the back of ongoing workflow at the Pilbara’s Deliver and Sustain projects.

The company said it expects continued strong performance for the second half of 2013 projecting a full-year profit of $55-60 million and fully-year revenues of $780-810 million.

Shares in Calibre were trading 2.7% up at $1.54.