Catalyst Metals has grown the ore reserve at its Trident underground gold project in Western Australia by 32 per cent, taking it to 524,000 ounces at 4.2 grams per tonne. The upgrade adds 127,000 ounces to the reserve base announced in April and comes as the company pushes ahead with underground development, with first ore now expected in 2027. It is another step in a build-out that is turning Catalyst into one of the more closely watched mid-tier gold producers on the ASX.
Trident Reserve Growth Backs a Longer Mine Life
The updated probable ore reserve of 3.9 million tonnes at 4.2g/t gold underpins an anticipated ten-year mine life once Trident reaches steady state production of between 60,000 and 80,000 ounces a year. Underground development is already underway, with roughly 250 metres of decline completed. Trident sits about 30 kilometres northeast of Catalyst’s existing two-million-tonne-per-annum Plutonic processing plant, which gives the company a clear path to toll-treat ore without needing new infrastructure. The reserve follows an updated mineral resource released in June 2026 of 6.2 million tonnes at 5.4g/t for 1.1 million ounces, so there is scope for further reserve conversion as infill drilling continues.
Cinnamon Drilling Adds to the Growth Story
The Trident news follows a string of strong infill results at Catalyst’s nearby Cinnamon deposit, including intercepts of 27 metres at 20.5g/t, 60 metres at 9.2g/t and 57 metres at 6.9g/t gold. The company says the thick, continuous high-grade zones support bulk underground mining methods, and a maiden resource and reserve estimate for Cinnamon is expected within weeks. Combined with Trident, the results point to a broader resource base building around the Plutonic hub, echoing the kind of goldfields consolidation seen recently at Minerals 260’s high-grade hits at Bullabulling.
What It Means for ASX Gold Investors
Reserve and resource growth at existing operations carries less execution risk than greenfield discovery, which is part of why the market has rewarded steady upgrades like this one. Catalyst has flagged that FY2027 production and all-in sustaining cost guidance, along with an updated ten-year outlook, are due in late September. That timing puts Catalyst Metals (ASX: CYL) in focus for investors weighing mid-tier gold producers against the wave of consolidation moving through the sector, including Genesis Minerals and Vault Minerals’ $12.6 billion merger. With gold trading above AU$6,200 an ounce, producers that can grow ounces from existing infrastructure rather than new capital spend remain well placed, a dynamic the World Gold Council has also pointed to in its recent commentary on mine supply growth.
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