Quan-Sing has spent almost a decade working in commercial litigation, with a focus on energy & resources and, most recently with Freehills, he also spent time at major Australian oil and gas exploration and production company Santos Ltd on secondment.

Quan-Sing's appointment reflects the significant growth that Allens' Perth office is experiencing in the projects area, according to Allens Perth practice director Andrew Pascoe.

"Perth continues to be at the centre of one of the biggest economic booms in Australia's history. Our Perth office is working at the forefront of the largest and most interesting infrastructure projects in our region," said Pascoe.