Highlights

• Trident Underground Ore Reserve increased 32% to 524koz at 4.2g/t gold.
• Trident’s Mineral Resource stands at 1.081Moz at 5.4g/t gold.
• Underground production is expected at 60–80koz annually for more than 10 years.
• First underground ore production is expected to commence in calendar year 2027.
• Catalyst is working toward approximately 2Moz of Plutonic Belt Reserves and around 200koz annual production.

Trident Reserve Growth Lifts Catalyst Metals SharesCatalyst Metals Limited (ASX: CYL) released an updated Ore Reserve for its Trident underground gold deposit, strengthening the development outlook for its flagship Plutonic Gold Belt in Western Australia. The company’s shares surged 3.76% to a current market price (CMP) of AU$6.620 as investors assessed the larger reserve base, long mine-life potential and continuing development progress at Trident.

The latest update increased the underground Ore Reserve by 32% to 3.9 million tonnes grading 4.2 grams per tonne of gold for 524,000 ounces. Catalyst expects the operation to sustain annual production of approximately 60,000–80,000 ounces over a mine life of more than 10 years.Trident Resource Base Provides Further Conversion PotentialThe expanded Ore Reserve represents only part of Trident’s broader mineral inventory. Catalyst’s June 2026 Mineral Resource estimate stands at 6.2 million tonnes grading 5.4 grams per tonne for approximately 1.081 million ounces of gold. This comprises 3.1 million tonnes at 6.3g/t for 633,000 ounces in the Indicated category and 3.1 million tonnes at 4.6g/t for 448,000 ounces classified as Inferred.

The 448,000-ounce Inferred component provides an important potential source of future reserve additions. Catalyst reported that historical infill drilling at Trident has converted around 75% of Inferred Resources into the Indicated category. Continued infill drilling could therefore progressively expand the mineable inventory, subject to drilling results, economic assumptions and conversion studies.Underground Development Moves Toward 2027 First OreDevelopment of the Trident underground operation is already underway, with approximately 250 metres of development completed at the time of the announcement. First underground ore remains expected in calendar year 2027.

Ore from the pit has been stockpiled and is scheduled to be progressively transported to the Plutonic processing facility during the remainder of calendar year 2026. Importantly, the open pit also provided the box-cut access required to establish the underground decline.

This sequencing reduces part of the transition risk between surface and underground development while allowing Catalyst to progressively integrate Trident into the wider Plutonic operating system.Higher-Grade Ore Could Support Plutonic’s Production GrowthTrident ranks as the second-largest deposit across the Plutonic Gold Belt and is positioned to provide a higher-grade, consistent ore feed to the central processing plant. Once underground operations reach planned levels, Catalyst is targeting annual gold output of around 60,000–80,000 ounces, with the operation expected to support production for more than 10 years.

This is strategically important because the existing Plutonic Belt currently produces around 100,000 ounces annually at an all-in sustaining cost of approximately AU$2,800 per ounce. Catalyst is developing Trident Underground, Cinnamon and Old Highway as additional feed sources for its centrally located processing infrastructure.

The ability to utilise existing infrastructure could help Catalyst expand production without requiring an entirely new standalone processing operation for each deposit.Existing Processing Infrastructure Supports Development StrategyTrident underground ore is planned to be treated through the established Plutonic gravity and carbon-in-leach processing facility. The project will also use Plutonic’s tailings storage, camp, accommodation and airstrip infrastructure, creating operational integration across the broader gold belt.

The feasibility work selected longhole stoping with paste fill as the preferred underground mining method. The design incorporates a 2.0g/t gold break-even cut-off grade, while a 92.5% mining recovery factor has been applied to stopes.

Catalyst has also confirmed that the required mining approvals and permits for Trident are in place, reducing one potential source of schedule uncertainty as development advances.Catalyst Targets a Larger Plutonic Gold PlatformThe Trident expansion forms part of Catalyst’s wider plan to establish a longer-duration production platform across the Plutonic Gold Belt. The company currently reports group Mineral Resources of approximately 4.5Moz at 3.3g/t gold and Ore Reserves of approximately 1.5Moz at 2.6g/t gold. It is targeting around 2Moz of Reserves to underpin annual production of approximately 200,000 ounces over a 10-year horizon.

Catalyst also reported AU$331 million in cash and bullion and no debt, providing a comparatively strong financial position from which to progress development and exploration programs.Infill Drilling Remains a Key Value DriverFuture reserve growth at Trident will depend substantially on the conversion of the remaining Inferred Resource. Catalyst is maintaining an active drilling program aimed at improving resource confidence, upgrading mineral inventory and testing opportunities to expand the Trident deposit.

The scale of geological work already completed is significant. The underlying Mineral Resource incorporates 111,001 metres of drilling from 230 diamond or diamond-tail holes and 110 reverse-circulation holes, including 72 grade-control holes totalling 11,221 metres.

Successful conversion of additional high-grade ounces could extend the mine plan beyond the currently defined reserve base and strengthen Trident’s contribution to the broader Plutonic production profile.What Could Drive CYL Shares Next?Catalyst Metals’ latest Trident update materially strengthens the visibility of its medium-term production strategy. The 32% increase in underground Reserves to 524,000 ounces, combined with a 1.081Moz Resource and planned production of 60,000–80,000 ounces annually, gives Trident the potential to become an important high-grade contributor to the Plutonic operation.

With CYL trading at AU$6.620 after gaining 3.76%, the next phase of market attention is likely to centre on underground development progress, first ore in 2027, further conversion of the 448,000-ounce Inferred Resource and execution of Catalyst’s broader plan to lift Plutonic Belt production toward approximately 200,000 ounces annually. Investors should also monitor gold-price movements, mining costs, metallurgical recovery and development schedules, as these remain important variables for project economics.Note- All data presented is based on information available at the time of writing.Disclaimer for Kapitales ResearchThe materials provided by Kapitales Research, including articles, news, data, reports, opinions, images, charts, and videos ("Content"), are intended for personal, non-commercial use only. The primary goal of this Content is to educate and inform readers. This Content is not meant to offer financial advice, nor does it include any recommendation or opinion that should be relied upon for making financial decisions. Certain Content on this platform may be sponsored or unsponsored, but it does not serve as a solicitation or endorsement to buy, sell, or hold any securities, nor does it encourage any specific investment activities. Kapitales Research is not authorized to provide investment advice, and we strongly advise users to seek guidance from a qualified financial professional, such as a financial advisor or stockbroker, before making any investment choices. Kapitales Research disclaims all liability for any direct, indirect, incidental, or consequential damages arising from the use of the Content, which is provided without any warranties. The opinions expressed by contributors or guests are their own and do not necessarily reflect the views of Kapitales Research. Media such as images or music used on this platform are either owned by Kapitales Research, sourced through paid subscriptions, or believed to be in the public domain. We have made reasonable efforts to credit sources where appropriate. Kapitales Research does not claim ownership of any third-party media unless explicitly stated otherwise. 

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