Rumble Resources Secures Five-Year Toll Milling Deal for Western Queen Gold Ore

Toll Milling Deal Accelerates Western Queen Production Pathway

Rumble Resources Limited (ASX:RTR) has secured a near five-year toll milling and blending agreement with Gylden Resources and Kirkalocka Gold, committing 100% of forecast gold ore from its Western Queen project to be processed at the Kirkalocka plant. This arrangement sidesteps the need for Rumble to build its own processing facility, slashing upfront capital expenditure and accelerating the timeline to revenue.

The contract, effective from the first ore processed, spans four years and eleven months and sets competitive milling fees fixed for calendar year 2027, with fees thereafter subject to annual negotiation. Rumble retains full ownership of the gold recovered, with no profit sharing, underscoring the company’s control over its precious metal output.

Flexible Processing Campaigns to Match Production

Under the agreement, Western Queen ore will be processed in campaigns of either 75,000 tonnes blended 50/50 with Gylden ore or dedicated campaigns of 150,000 tonnes of 100% Western Queen ore. Based on the November 2025 Scoping Study, Western Queen is expected to produce approximately 300,000 tonnes of ore annually, with a campaign of Western Queen ore treated every three months.

This toll milling strategy aligns with Rumble’s focus on rapid project advancement, as the company prioritises dewatering the Western Queen open pit to commence underground mine development. First ore is expected to reach the ROM pad roughly six months after the underground portal is established.

Robust Project Economics and Resource Growth Potential

The Western Queen project boasts solid fundamentals, with a recent scoping study outlining a production target of 617,000 tonnes at 2.95 g/t for 58,500 ounces of gold, backed by an NPV of A$112 million and an IRR of 370% at a gold price of A$5,540/oz. Only 29% of the current mineral resource is included in this initial production target, leaving ample scope for resource conversion and mine life extension.

Rumble’s recent 17,500-metre diamond drilling campaign has delivered high-grade gold and tungsten intercepts that underpin an impending resource update and Bankable Feasibility Study, scheduled for early in the September 2026 quarter. This drilling effort is a key step toward upgrading inferred resources to indicated status, potentially expanding the mining inventory and improving project economics. The company’s drilling progress and resource upgrade plans have been highlighted in recent coverage of high-grade gold and tungsten drilling and high-grade gold shoot extension.

Tungsten Processing Discussions Signal Additional Revenue Stream

Beyond gold, Rumble is negotiating with Gylden and Kirkalocka Gold to develop a processing facility for tungsten-bearing ore from Western Queen, should mining of tungsten material proceed. The tungsten resource, estimated at 4.31 million tonnes at 0.31% WO3 for 13,200 tonnes of WO3, offers a promising co-product revenue stream. Metallurgical testwork has confirmed the potential to produce a 48% WO3 concentrate at 45% recovery using a simple gravity circuit, supporting plans to fast-track tungsten production alongside gold mining.

This tungsten opportunity dovetails with Rumble’s ongoing scoping study to accelerate its commercialisation, as detailed in recent reports on fast-tracking tungsten production.