Catalyst Metals Extends Trident Gold Resource Supporting 10-Year Mine Life
Catalyst Metals continues to expand the Trident underground gold deposit with drilling results that extend mineralisation beyond current resources, underpinning a decade-long mine plan at 60,000 ounces per annum.
- Trident reserves at 397koz gold at 5.0g/t grade
- Resources increased to 795koz at 5.3g/t gold
- Mining of open pit completed, underground decline underway
- Plan to double Plutonic annual production to 200koz
- Exploration shifting to Cinnamon, Old Highway, and K2 deposits
Drilling Extends Trident Mineralisation Beyond Resource Envelope
Catalyst Metals Limited (ASX:CYL) has reported ongoing success in its drilling campaign at the Trident underground gold deposit, part of the Plutonic Gold Belt in Western Australia. Recent drill results have revealed high-grade intercepts outside the current resource boundaries, signalling potential for further resource growth. These results bolster Catalyst’s confidence in a mine life exceeding 10 years, with an expected production rate of around 60,000 ounces of gold per annum.
The deposit now boasts probable reserves of 397,000 ounces at a grade of 5.0 grams per tonne (g/t) gold and a resource estimate of 795,000 ounces at 5.3g/t. This follows a substantial drilling program in 2025 that doubled indicated resources to 527,000 ounces at 5.3g/t and expanded the mineralisation footprint significantly.
Open Pit Mining Completed, Underground Development Commences
Mining of a small open pit at Trident, which will serve as the portal for the underground decline, has recently been completed on schedule. The underground portal establishment is underway, with decline development set to begin imminently. This infrastructure development is a critical step toward bringing the Trident underground mine into production, expected to feed the underutilised Plutonic processing plant located 30 kilometres southwest.
The Trident underground mine is poised to become the second largest ore source in the Plutonic Gold Belt, operating at a steady state of approximately 60,000 ounces per annum. This forms a key pillar in Catalyst’s broader strategy to increase annual gold output at Plutonic from around 100,000 ounces to 200,000 ounces by developing five underground mines, including Plutonic Main, Plutonic East, Trident, K2, and Old Highway.
Diversifying Ore Sources to Stabilise Production
Catalyst’s Managing Director and CEO, James Champion de Crespigny, emphasised the importance of multiple ore sources to feed the central processing plant. The company is actively ramping up exploration and drilling at other deposits such as Cinnamon, Old Highway, and K2 to diversify its ore feed and extend mine life. Notably, the Cinnamon deposit, previously excluded from production plans, is now being reconsidered following recent encouraging exploration results.
This multi-pronged exploration approach aims to create a more stable, long-term, and lower-cost operating base at Plutonic, ensuring sustained exposure to gold production. The shift in focus to these additional deposits has resulted in a slower drilling pace at Trident in the latter half of 2025, but Catalyst plans to return to infill and extension drilling at Trident once underground operations are established.
Robust Geological Understanding and Quality Assurance
The extensive drilling program at Trident includes 230 holes totaling over 81,000 metres, combining reverse circulation pre-collars and diamond drilling tails. The drilling orientation is generally perpendicular to the mineralisation, minimising sampling bias. Catalyst reports high core recovery rates averaging 99% within mineralised zones and employs rigorous quality control measures including Certified Reference Materials and blanks every 20 samples.
Geological logging and sampling protocols meet industry best practice standards, supporting reliable resource estimation and mining studies. The mineralisation at Trident is orogenic, hosted within sheared ultramafic rocks, with high-grade shoots associated with structural flexures. The deposit remains open at depth, with ongoing exploration targeting extensions beyond the current resource envelope.
These findings align with Catalyst’s recent operational milestones, including the completion of open pit mining at Trident and preparations for underground operations, as reported in earlier updates. The company’s plans to double production and extend mine life across the Plutonic Gold Belt hinge on successful development and exploration across multiple deposits, including the newly active Cinnamon prospect.
As Catalyst advances Trident’s underground mine and broadens its exploration focus, the coming months will be pivotal in confirming resource extensions and integrating new ore sources into its production pipeline.
Bottom Line?
Catalyst’s expanding Trident resource and underground development mark a crucial step in its plan to double gold production, but sustaining growth depends on successful exploration at other belt deposits.
Questions in the middle?
- How will exploration at Cinnamon and other deposits reshape Catalyst’s production profile?
- What timelines can be expected for underground production ramp-up at Trident?
- How might evolving gold prices impact Catalyst’s cost and production targets?
