Catalyst Grows Plutonic Ore Reserves to 2.0Moz

Catalyst reported delineation of 2Moz of Ore Reserves across the Plutonic Gold Belt, which it says supplies the inventory to support a ±200koz per annum production rate for ±10 years.

Probable Ore Reserves at 30 June 2026 total 23.4Mt at 2.6g/t Au for 1,971koz, comprising underground Reserves of 18.5Mt at 3.0g/t for 1,751koz, open-pit Reserves of 4.6Mt at 1.4g/t for 213koz, and surface stockpiles of 0.2Mt at 1.0g/t for 7koz. Over the past 12 months Ore Reserves grew 35% from 1.5Moz to 2.0Moz. Since acquisition, Catalyst says it has added about 1.8Moz of Reserves after depletion for about A$226m at a cost of A$125/oz, with over half of Reserve growth under its ownership attributable to higher-grade sources at Trident, Old Highway, Cinnamon and Keillor. Ore Reserves are based on a gold price of A$4,500/ounce. The company states Mineral Resources of 5.1Moz at 3.2g/t Au, cash and bullion of A$331m and nil debt. Catalyst will decide in December 2026 whether it changes exploration activities and expenditure. It says the September 2025 general 10-year guidance should be seen as a general guide to management's long-term vision after changes to permitting timelines, operational delays and processing capability.

The ±200koz production rate is presented as a plan rather than period-specific production guidance. A full Mineral Resource and Ore Reserve Statement is to follow under Listing Rule timing.