Highlights

  • Rumble Resources shares surged 5.66% to AUD 0.056 on 19 May 2026, touching a 52-week high of AUD 0.06 intraday, after the company announced a binding Toll Milling and Blending Agreement with Gylden Resources and Kirkalocka Gold for processing ore from its Western Queen Gold and Tungsten Project.
  • The agreement, which runs for four years and eleven months from the date the first Western Queen ore is processed, enables 100% of forecast annual production of approximately 300,000 tonnes to be processed at Kirkalocka's 2.1 million tonne per annum plant — eliminating the need for Rumble to build its own processing Facility.
  • The November 2025 Scoping Study for Western Queen South projected free Cash Flow of $133 million and an IRR of 370% at a gold price of AUD 5,540 per ounce, compared to the then-Spot Price of approximately AUD 6,350 per ounce, underlining the project's economic sensitivity to the prevailing gold price environment.

 

Rumble Resources Limited (ASX:RTR) delivered a standout session on 19 May 2026, with shares rising 5.66% to AUD 0.056 and registering an intraday high of AUD 0.06 — the stock's 52-week high. The move was directly triggered by the announcement of a binding Toll Milling and Blending Agreement for the company's Western Queen Gold and Tungsten Project, a deal that removes one of the most significant Capital and logistical hurdles facing the junior miner's path to Revenue generation.

For a small-Capitalisation resources stock, the significance of securing a processing agreement with a well-resourced counterparty cannot be overstated. Prior to such arrangements, exploration and development companies of Rumble's scale face the dual challenge of financing both mine development and plant construction — a funding burden that often results in dilutive Equity raisings or development delays. The toll milling structure sidesteps this entirely, and the market responded accordingly.

The Toll Milling Agreement — Structure and Strategic Importance

The agreement was entered into between Western Queen Pty Ltd, a Wholly Owned Subsidiary of Rumble, and Gylden Resources Pty Ltd, along with Kirkalocka Gold SPV Pty Ltd. Under the terms of the arrangement, Gylden has agreed to process gold-bearing ore from the Western Queen project at Kirkalocka Gold's 2.1 million tonne per annum plant in Western Australia, located approximately 180 kilometres by road from the Western Queen project site.

The agreement will run for four years and eleven months from the date the first parcel of Western Queen ore is processed at Kirkalocka, providing a meaningful window of operational certainty. Processing will occur in campaigns of 75,000 tonnes — blended 50/50 with Gylden ore — or in dedicated campaigns of 150,000 tonnes of Western Queen ore processed separately. Based on forecast production of approximately 300,000 tonnes per annum from the Western Queen project, this translates to approximately four campaigns per year under the blended model, or two under the dedicated model.

Milling fees are fixed for calendar year 2027, with subsequent years subject to annual negotiation. Critically, Rumble retains 100% of the gold recovered from its ore in each campaign — there is no profit share arrangement with Gylden. Additional cost provisions exist for excess reagent or grinding media consumption, but the overall structure is commercially favourable for an emerging producer of Rumble's scale.

Western Queen Project — Financial and Operational Backdrop

The Western Queen Gold and Tungsten Project, located 90 kilometres northwest of Mt Magnet in Western Australia, holds a mineral resource estimate of 3.72 million tonnes at 3.1 grams per tonne gold for 370,000 ounces, as announced in July 2025. The project's historical pedigree is substantial: the combined historical production from two deposits on the tenements totalled 880,000 tonnes at 7.6 grams per tonne gold for 215,000 ounces.

The November 2025 Scoping Study, focused on the Western Queen South underground mine, outlined a production target of 617,000 tonnes at 2.95 grams per tonne for 58,500 ounces of contained gold. Key Economics from the study included free cash flow of $133 million, an NPV of $112 million at an 8% discount rate, an IRR of 370% at a gold price of AUD 5,540 per ounce, and all-in sustaining costs of AUD 2,970 per ounce. With the current spot gold price running at approximately AUD 6,350 per ounce at the time of the announcement, the project's economics are materially more attractive than the base case presented in the scoping study.

Path to Production — Key Milestones Ahead

The agreement contains several conditions precedent before it becomes operative. Most notably, Rumble must notify Gylden that a positive decision to mine Western Queen has been made, and both parties must have executed a joint gold refining contract. Additionally, Ramelius Resources must not have exercised its pre-emptive rights to process ore from Western Queen. The existence of pre-emptive rights in favour of Ramelius represents a residual uncertainty that investors should monitor, though the announcement of the Gylden deal suggests Rumble is confident in the pathway forward.

On the ground, the next major operational task is the dewatering of the Western Queen open pit. Once completed, underground mine development can commence, with first ore delivery to the Run-of-Mine pad expected approximately six months after the portal is cut. Permitting is largely advanced, with the Works Approval and Native Vegetation Clearance Approval already obtained. The Groundwater Licence and the Mine Development and Closure Proposal remain outstanding, representing key regulatory milestones to watch.

Tungsten — The Overlooked Upside

Alongside the gold story, Rumble has been developing a compelling tungsten narrative at Western Queen. The maiden tungsten mineral resource estimate, announced in August 2025, stands at 4.31 million tonnes at 0.31% tungsten trioxide for 13,200 tonnes of contained tungsten trioxide. Metallurgical testwork confirmed that the scheelite material can be upgraded to a concentrate containing 48% tungsten trioxide at a 45% recovery through a simple gravity circuit. A scoping study for the tungsten component is currently underway, with the goal of potentially fast-tracking tungsten into production alongside gold. The toll milling agreement also includes a good-faith obligation for both parties to negotiate the development of a tungsten processing facility at Kirkalocka, providing a potential pathway for tungsten revenue without separate capital outlay.

Conclusion

The 5.66% share price surge to a 52-week high on 19 May 2026 reflects the market's positive reception to what is a genuinely significant operational de-risking event for Rumble Resources. The toll milling agreement materially reduces the capital requirements to bring Western Queen into production, accelerates the pathway to revenue generation, and opens an additional avenue for tungsten processing. With the Bankable Feasibility Study expected in the September 2026 quarter and an updated mineral resource estimate in progress, Rumble is entering a period of meaningful catalysts that will progressively define the project's development timeline and economic parameters.