Plutonic Gold Mine
The Plutonic Gold Mine is located approximately 195km northeast of Meekatharra in the mid-west region of Western Australia, at the northern end of the world class Eastern Gold Fields Province.
The Plutonic operations comprise the operating Plutonic Main and Plutonic East mines. Plutonic East was brought on-line in March 2025.
Catalyst’s near-term strategy is to increase Reserves from ±1.5Moz to ±2Moz at the Plutonic Gold Belt. This Reserve base is expected to underwrite an increased production rate from ±100koz to ±200koz for ten years. In addition to the operating Plutonic Main and Plutonic East mines, Trident, K2 and Old Highway will be developed leading to five operational mines feeding the currently underutilised and centrally located Plutonic processing plant.
Production ore is presently sourced from the Plutonic Main underground mine. Catalyst intends to bring three new mines into production during 2025. The first of the new mines, Plutonic East, produced its first stoping ore in early 2025.
K2 will be the second mine to be developed by Catalyst and will represent a third ore source for the Plutonic operations. It is located 40km north-east of the underutilised Plutonic processing plant, and preliminary site works have commenced to dewater and rehabilitate the existing underground decline.
Catalyst has also received underground mining approval from DEMIRS for the Trident deposit, a high-grade deposit located to the northeast of the Plutonic operations. The final, open pit mining approval has been submitted to DEMIRS and Catalyst remains on-track for first ore from Trident in the second half of CY2025.
Trident Gold Deposit
Trident is an undeveloped gold project located 30km north-east of the underutilised Plutonic processing plant. Trident comprises an open pit Indicated Resource of 0.4Mt at 1.6g/t Au for 16koz Au, and an underground Resource of 4.7Mt at 5.3g/t Au for 795koz Au (including Indicated Resource of 2.6Mt at 6.4g/t Au for 527koz Au). Trident is currently the second largest deposit on the Plutonic Gold Belt. Following receipt of all required environmental and regulatory approvals in Q4 FY2025, Catalyst commenced open pit mining in July 2025. This will transition to underground mining over a 12 month period.
