Rumble Upgrades Western Queen Gold Resource to 433,600oz

24 June 2026 | Western Australia - Rumble Resources has upgraded the Gold Mineral Resource Estimate at its Western Queen Gold and Tungsten Project in Western Australia, following a successful diamond drilling campaign.

The Western Queen Gold Resource has increased to 5.13Mt at 2.6 g/t gold for 433,600 ounces, representing a 17% increase in total contained gold.

Importantly, Indicated Resources have increased by 54% to 2.46Mt at 2.9 g/t gold for 227,700 ounces, adding 79,700 ounces compared with the July 2025 Resource.

Rumble also reported the discovery of a new high-grade zone at Western Queen Central, containing 145,000 tonnes at 11.3 g/t gold for 52,500 ounces. The zone is located directly below the historical underground workings and beneath the Western Queen Central open pit.

The upgraded Resource is based on 17,255m of diamond drilling completed between October 2025 and April 2026. Rumble said the drilling focused on upgrading previous Inferred Resources to the Indicated category at Western Queen South and Western Queen Central, as well as testing high-grade down-plunge extensions of the main mineralised zones.

Managing Director and CEO Peter Harold said the Resource upgrade was extremely positive, with the geological team delivering a major increase in Indicated Resources and identifying a new high-grade discovery below the old workings at Western Queen Central.

Why it matters: The increase in Indicated Resources is significant because it provides greater confidence for future mine planning and feasibility work. Rumble said the upgraded Resource will now be incorporated into an updated mining schedule for the Bankable Feasibility Study, which remains on track for delivery during the September quarter.

The company said the new high-grade zone at Western Queen Central measures approximately 250m by 100m and represents a high-priority target for future development. Updated modelling indicates that barren pegmatites displace less of the high-grade mineralisation than previously interpreted.

Rumble said the Resource upgrade, new high-grade discovery and ongoing tungsten optimisation work are expected to support a significant increase in mine life compared with the two-year case outlined in the November 2025 Scoping Study.

The company has also executed an ore tolling and blending agreement with Gylden Resources, with the immediate priority now being to secure the necessary permits to allow pit dewatering ahead of the start of mining operations.

Mine development remains on track for production to commence in 2027.

The Western Queen deposits are located on granted mining leases M59/208 and M59/45. The project is part of the Warda Warra Greenstone Belt in the Murchison region and hosts both gold and tungsten mineralisation.

Rumble also reported further gold drilling results from Western Queen South, including 13m at 4.90 g/t gold from 314m, including 7m at 7.40 g/t gold, and 19m at 2.11 g/t gold from 331m, including 2m at 6.54 g/t gold.

While most recent holes were not targeting tungsten, drilling again intersected high-grade scheelite mineralisation, including 10m at 0.35% WO3 from 348m and 0.85m at 1.09% WO3 from 405m. Rumble said an updated tungsten Mineral Resource Estimate is expected in July.

For Western Australia’s gold sector, the Western Queen upgrade adds another near-term development story in the Murchison, with higher-confidence ounces, a new high-grade zone and a Bankable Feasibility Study due in the coming months.

Source: Rumble Resources ASX announcement, “Western Queen Gold Resources upgraded to 433koz with 228koz now in Indicated category and a new high-grade zone of 53koz @ 11.3g/t gold”, 24 June 2026.