• Trident open pit mining complete, allowing underground decline development
• Trident underground reserve of 397koz at 5.0g/t, expected annual production of ~60koz
• Catalyst aims to increase annual gold production at Plutonic from ~100koz to ~200koz

Catalyst Metals Ltd (ASX:CYL) has announced the completion of mining at the Trident open pit on the Plutonic Gold Belt in Western Australia. The completion of the open pit will allow a decline to be established and the underground mine to be developed over the coming months. The Trident underground mine has a probable reserve of 2.5Mt at 5.0g/t Au for 397koz of gold, and a resource of 4.7Mt at 5.3g/t Au for 795koz. It is expected to operate at a run rate of around ±60koz per annum and will form the second base load ore source feeding the Plutonic processing plant. Catalyst's strategy is to have an abundance of ore source sources feeding into the central 2Mtpa processing facility in its pursuit of annual gold production of 200koz. This will be achieved through the development of Trident underground, as well as the nearby Old Highway and Cinnamon deposits. The Trident open pit was Catalyst's first open pit development on the Plutonic Gold Belt and was undertaken by an open pit contractor. Material movement, ore mined and resource reconciliations were in-line with the budget, and Catalyst is pleased with the outcome given it was the company's first open pit and contractor-related operation. Ore from the open pit has been stockpiled and will be processed progressively through the Plutonic mill over the remainder of 2026.

Catalyst aims to increase annual gold production at Plutonic from ~100koz to ~200koz.