Minerals 260 (ASX:MI6) completed the pre-feasibility study for stage 1 of the Bullabulling project in Western Australia in the June quarter, delivering an average annual production of roughly 150,000 ounces of gold over the first 10 years, according to a Thursday filing with the Australian bourse.
During the quarter, the project's mineral resource estimate rose to 190 million tonnes at 1 gram per tonne (g/t) grade of gold for 6.2 million ounces of gold, an increase of about 1.7 million ounces from the December 2025 estimate of 130 million tonnes at 1 g/t grade of gold for 4.5 million ounces, the filing said.
The board plans to make a final investment decision in the first quarter of 2027, per the filing.
The company's shares gained about 1% in recent Thursday trade.