PC Gold (ASX:PC2) said pre-feasibility study (PFS) metallurgical testing at its Spring Hill gold project in the Northern Territory has returned strong gravity gold recoveries ranging between 33.1% and 48.9%, according to a Wednesday Australian bourse filing.

The company said all domains reported overall gold extraction recoveries of between 90.2% and 99.4% at a coarse grind size, with true specific gravity determinations across weathered, transitional and fresh domains ranging from 2.87 to 3.07 tonnes per cubic meter.

The PFS remains on track for delivery in mid-November, the filing added.

The company's shares rose 1% in recent Tuesday trade.