Calidus Resources has appointed GR Engineering Services to carry out the prefeasibility study (PFS) on its Warrawoona gold project in Western Australia.

The PFS is scheduled to be completed in the September quarter.

Calidus said: “GR Engineering are an ASX-listed engineering company that has successfully managed 19 gold feasibility studies and the construction of three gold processing plants in Western Australia in the last two years and has an excellent track record of delivering process plants on time and on budget.”

Calidus Managing Director, Dave Reeves, said: “The appointment of GR Engineering to undertake the PFS for Calidus is another step towards development of the Warrawoona gold project.

“Detailed inputs for the study have been collected over the last 12 months to ensure an accurate representation of the economics can be provided to investors on the completion of the PFS and allow discussions to commence with debt financiers.

“With regional drilling of untested anomalies due to commence next month in parallel with the PFS, we believe we are just starting to unlock the true value of this untested greenstone belt in Western Australia.”

Calidus has outlined a resource of 21.3 Mt at 1.83 g/t Au for 1.25 Moz at Warrawoona, which includes a higher-grade component of 14.6 Mt at 2.37 g/t for 1.1 Moz. Around 64% of the resource is classified as indicated.