Forrestania Resources (ASX:FRS) reported a mineral resource estimate for its Lady Ada and Lady Magdalene deposits in Western Australia of 4.89 million tonnes at 1.82 grams per tonne (g/t) grade of gold for 285,700 ounces of gold at a 0.5 g/t cut-off, according to a Wednesday Australian bourse filing.

The company said the update represents a 4% decrease in estimated gold ounces following a re-estimation, comprising 160,000 tonnes at 3.04 g/t gold for 15,400 ounces in the measured category and 1.53 million tonnes at 1.73 g/t gold for 85,000 ounces in the indicated category, both at a 0.5 g/t cut-off.

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