News

Rox Resources Limited (ASX: RXL) has released a promising drilling update from its flagship Youanmi Gold Project in Western Australia, with recent results confirming the continuation of high-grade gold mineralisation across multiple deposits.

The recently completed 35,000-metre Step-up drilling program has delivered a series of strong assay results, with standout intercepts including:

• RXDD203: 11.90m @ 4.37g/t Au from 451.0m and 1.96m @ 17.13g/t Au from 471.9m (Youanmi Main)

• RXDD190: 6.73m @ 6.66g/t Au from 447.3m (Youanmi Main)

• RXRC569: 5.00m @ 5.33g/t Au from 53.0m (Interceptor)

• RXDD205: 14.77m @ 1.33g/t Au from 407.2m and 1.00m @ 9.92g/t Au from 434.0m (United North)

The program aimed to grow near-mine resources and upgrade inferred mineralisation in support of the upcoming Definitive Feasibility Study (DFS), which remains on track for release in July 2025.

Rox Resources Managing Director & CEO, Mr Phillip Wilding, stated:

“The Step-up drill program has been highly successful in increasing our understanding of the Youanmi ore system. These results affirm the high-grade nature of the deposit and support the case for advancing to development and production.”

Ongoing activities at Youanmi include:

• Two diamond rigs targeting extensions at Youanmi North, United North, Pollard and Prospect

• Progress on dewatering infrastructure to enable decline access to underground development

• Completion of metallurgical test work, with Albion Process™ testing underway

• Preparations for updated Mineral Resource Estimate (MRE) and environmental approvals

Rox continues to build momentum as it advances towards re-establishing mining operations at Youanmi, a historically high-grade gold producer with strong infrastructure already in place.

23 May 2025 | West Perth, WA – Great Boulder Resources (ASX:GBR) has confirmed a new gold discovery at Side Well South and extended the Eaglehawk deposit by another 200 metres, highlighting the growing potential of the company’s flagship Side Well Gold Project near Meekatharra.

Key RC intercepts from Side Well South include:

• 14m @ 1.64g/t Au from 83m, including 4m @ 3.59g/t Au (25SWRC001)

• 19m @ 0.84g/t Au from 28m, including 5m @ 2.01g/t Au (25SWRC003)

• 8m @ 1.68g/t Au from 107m (25SWRC004)

Assays from 16 additional RC holes are pending. Meanwhile, AC drilling at Eaglehawk returned:

• 8m @ 2.19g/t Au from 60m, including 4m @ 4.23g/t Au (25SWAC137)

These results confirm primary mineralisation beneath recent AC hits and highlight further expansion potential across multiple trends.

Managing Director Andrew Paterson commented:

“It’s really exciting to see immediate progress at Side Well South and the extension at Eaglehawk. We’ve now confirmed primary gold in multiple new zones, and we’re only just beginning to test the broader system.”

Next steps:

• Completion of Phase 2 AC drilling at Side Well South

• RC follow-up at Ironbark (recent 8m @ 9.07g/t Au intercept)

• Regional geophysics and heritage clearance for the northern Central Corridor

• Scoping study for Ironbark on track for delivery this quarter

Great Boulder has also published a revised Exploration Target for Side Well totalling up to 1.1Moz, based on defined prospects across Mulga Bill, Eaglehawk, Ironbark, Saltbush and Side Well South.

22 May 2025 | West Perth, WA – Kali Metals (ASX:KM1) has expanded its Marble Bar Gold Project in the Pilbara by 28.8km² following the acquisition of exploration licence E45/6389, bringing the project’s total landholding to approximately 96km².

The newly acquired tenement sits directly along strike and immediately north of Kali’s existing 9.5km gold-in-soil anomaly, where previous rock chip sampling returned grades of up to 4.0g/t gold. Kali believes the mineralised trend extends into the new area and intends to begin exploration immediately, with heritage approvals already in place.

Managing Director Paul Adams commented:

“This acquisition not only consolidates our landholding but also significantly strengthens the exploration potential at Marble Bar. With gold prices recently reaching record highs, we’re maintaining a clear focus on advancing this highly prospective area.”

Kali also announced it has recently completed its most extensive surface sampling program to date, collecting 299 rock chip samples across the project. Assay results are expected in the coming weeks.

Acquisition Terms:

• $20,000 cash and scrip consideration (3.5M shares)

• Two deferred share payments tied to JORC resource milestones:

  • 100,000oz and 250,000oz gold at 0.5g/t cut-off within four years

The Marble Bar Project is strategically located near Calidus Resources’ Warrawoona/Klondyke operations and forms part of Kali’s broader gold and lithium portfolio across Australia’s key mineral belts.

22 May 2025 | South Perth, WA – Astral Resources (ASX:AAR) has delivered outstanding metallurgical results from its Feysville Gold Project, with gold recoveries of up to 98.1% confirmed from initial testwork at the Kamperman and Rogan Josh deposits. The results support the inclusion of these satellite deposits in the upcoming Mandilla Pre-Feasibility Study (PFS).

Five composite samples from Kamperman and two from Rogan Josh underwent gravity and cyanide leach testing. Three Kamperman samples returned an average recovery of 98.1%, confirming free-milling characteristics. The remaining two, which contained elevated copper, recorded 87.9% but are expected to improve with higher cyanide concentrations in follow-up tests.

Key Results:

• Kamperman: 3 samples averaged 98.1% recovery; 2 samples averaged 87.9% (high copper impact)

• Rogan Josh: 2 samples averaged 91.5% recovery at an average head grade of 0.70g/t Au

• Low reagent consumption and rapid leach kinetics across both deposits

Managing Director Marc Ducler stated:

“These results clearly demonstrate that the simple, low-cost processing route proposed for Mandilla will also suit ore from Kamperman and Rogan Josh. This is a key step toward incorporating Feysville into the broader Mandilla mine plan.”

The combined Feysville resources now total 5Mt @ 1.2g/t Au for 196koz, strengthening Astral’s consolidated Mineral Resource base of 1.76Moz.

Additional assay results from RC and aircore drilling at Feysville are due later this quarter, alongside ongoing in-fill and extensional drilling at the nearby Iris and Hestia deposits.

21 May 2025 | Alstonville, NSW – Polymetals Resources (ASX:POL) has confirmed that redevelopment of its Endeavor Silver-Zinc Mine is progressing on schedule and within budget, with commissioning well underway and first cash flow expected in June.

Following the completion of major site works and infrastructure upgrades, the site has entered full commissioning. Crushed ore is being hoisted and stockpiled, with wet commissioning of the plant in progress and ore processing scheduled to begin next week.

Key highlights:

• First ore crushed and hoisted to surface

• Over 40,000 tonnes of ore stockpiled underground

• Site targeting 65,000t/month processing rate in H2 2025

• First mining of high-grade silver ore set for July 2025

Executive Chairman Dave Sproule said:

“We’re proud of the rapid, in-house development at Endeavor — a rarely achieved feat at this scale. First processing is imminent, and our shareholders are seeing real value for money.”

In parallel, diamond drilling continues at the Carpark prospect, targeting extensions of the Main Lode. Results will be released once the current program is completed.

Polymetals is aiming to become a long-term base and precious metal producer from the Cobar Basin, with the Endeavor restart marking a critical milestone in that journey.

21 May 2025 | West Perth, WA – Yandal Resources (ASX:YRL) has confirmed broad zones of gold mineralisation at the Siona Discovery, part of its Ironstone Well-Barwidgee Project in WA’s northern Goldfields, and is now preparing to launch a major 12,500m aircore drilling program at the nearby Caladan prospect.

Diamond drilling at Siona returned:

• 16.3m @ 0.5g/t Au from 322.2m (25IWBRD0003)

• 29.1m @ 0.4g/t Au from 282.9m (25IWBRD0010)

• 6.4m @ 1.5g/t Au from 103.5m, including

  • 0.4m @ 12.7g/t Au (25IWBDD0009)

• 116m @ 1.0g/t Au from 97m (24IWBRD0039 – RC + diamond tail)

These results build on the broad, low-grade halo with internal high-grade zones identified in earlier RC drilling. Geological modelling suggests gold mineralisation is controlled by deformation along and within the New England Granite intrusion.

Managing Director Chris Oorschot said:

“We’re now armed with a much clearer understanding of the Siona system. With the full extent of the granite under Yandal’s control, we’re shifting focus to testing new structural targets that could deliver larger-scale discoveries.”

Next steps:

• Caladan aircore drilling begins late May

• Follow-up aircore at Salusa and other New England Granite (NEG) targets

• Heritage surveys scheduled for late May / early June

• RC drilling to resume post-aircore to test deeper high-grade trends at Siona

Yandal sees the NEG as a regional-scale gold system, with visible gold, strong alteration, and favourable structural controls now confirmed through diamond drilling.

21 May 2025 | West Perth, WA – Rox Resources (ASX:RXL) has achieved a major milestone in its metallurgical test work, confirming gold recoveries of 91.6% to concentrate from samples at its flagship Youanmi Gold Project in WA’s Mid West.

Conducted as part of the Definitive Feasibility Study (DFS), bulk flotation tests also returned concentrate grades of 49.9g/t Au, with up to 62.6% additional gold recoverable from tailings via cyanide leach. Test work using the Albion Process™ is now underway to optimise overall recovery.

Key Results:

• 91.6% gold and 98.3% sulphur recovery to concentrate

• Tailings leach recovery: 35.8–62.6%, with low reagent use

• Albion Process™ to improve recovery from semi-refractory ores

• Final gold recoveries expected to exceed PFS assumptions

Managing Director Phillip Wilding commented:

“It’s exciting to see recoveries exceeding our Pre-Feasibility Study expectations. The Albion Process could deliver further upside while lowering processing costs, supporting a compelling case for development.”

The metallurgical program, which began in January, will feed directly into Rox’s DFS due in November 2025. The work covers the major ore lithologies that comprise over 95% of the planned plant feed and is key to optimising the process flowsheet.

Additional dewatering, approvals, and resource updates are progressing in parallel as Rox works toward a production decision.

21 May 2025 | Mt Hawthorn, WA – Tempest Minerals (ASX:TEM) has significantly expanded the surface footprint of its Sanity gold anomaly at the Yalgoo Project in Western Australia, following results from a tighter-spaced geochemical sampling program.

Soil sampling on a 100m x 100m grid returned up to 294ppb gold, outlining a stronger and more coherent anomaly adjacent to historical mine workings. The Sanity prospect continues to build as a compelling target for future drilling.

Key Highlights:

• Peak soil value: 294ppb Au, with a strong gold-silver geochemical correlation

• Rock chips nearby returned up to 7g/t gold, 0.2% copper, and >60% iron

• Geophysical data highlights a coincident magnetic anomaly and structural distortion

• Over 200 samples define a robust multi-element geochemical anomaly

Next Steps:

• Assess results within regional geological context

• Advance approvals and develop geological models

• Plan for drilling and further mapping, geophysics, and sampling

Managing Director Don Smith commented:

“The expansion of the Sanity anomaly adds weight to the prospectivity of the Yalgoo Project. This is a clear example of our data-driven approach delivering strong regional targets ready for drill testing.”

Tempest controls more than 1,000km² in the Yalgoo region, and Sanity joins a growing list of prospects alongside the 2024 Remorse magnetite discovery.

20 May 2025 | West Perth, WA – Accelerate Resources (ASX:AX8) has identified multiple high-impact drill targets at its 100%-owned Kanowna East Gold Project, just 9km from Northern Star’s +6Moz Kanowna Belle deposit, following recent gravity survey data and structural analysis.

The company is preparing to launch new drilling programs at its Western Tiger and Little Lake prospects, both located within a structurally complex corridor associated with the Reidy and Mt Monger Faults in WA’s Eastern Goldfields.

Key Highlights:

🔹 Western Tiger Prospect

• 600m-long gold-rich paleochannel with widths up to 140m

• Past intercepts include:

  • 8m @ 4.5g/t Au (KEAC373)

  • 5m @ 2.2g/t Au (KEAC006)

• New geochem and gravity data reveal a felsic intrusion below mineralisation

• Upcoming RC drilling aims to extend known gold zone 500m NW and define a maiden JORC resource

🔹 Little Lake Prospect

• New gravity data defines a NE-trending shear zone between fault intersections

• Targeting basement-hosted mineralisation under cover, analogous to Garden Well (+3Moz)

• Initial drilling will focus on structurally favourable zones near historical gold hits

With $3M in cash and recent funding from a $2M non-core asset sale, Accelerate is fully funded to execute its exploration strategy.

CEO Luke Meter commented:

“We’re advancing high-quality targets in a world-class gold belt, just a short haul from multiple toll treatment options. This next drill phase could be pivotal in unlocking the value of Kanowna East.”

Further work is also planned at regional prospects including Perkolilli, Dingo Dam, and Dingo Dam South.

20 May 2025 | Subiaco, WA – Brightstar Resources (ASX:BTR) has reported a standout intercept of 16m @ 8.03g/t Au from its Phase 1 RC drilling campaign at the Yunndaga deposit, part of its 0.6Moz Menzies Gold Project in WA.

The results come from a ~6,100m RC program targeting infill and down-dip extensions to known mineralisation, aiming to underpin a future underground mining operation.

Key intercepts include:

• 16m @ 8.03g/t Au from 220m (incl. 1m @ 33.6g/t & 4m @ 13.5g/t) – YNRC25022

• 13m @ 4.70g/t Au from 167m (incl. 2m @ 22.6g/t) – YNRC25026

• 11m @ 3.32g/t Au from 215m – YNRC25023

• 12m @ 2.34g/t Au from 156m – YNRC25027

• 8m @ 3.45g/t Au from 147m – YNRC25017

These results confirm the continuity of high-grade lodes beneath the historic Yunndaga open pit and support the underground mine designs outlined in Brightstar’s 2023 Scoping Study, which forecast ~61koz @ 2.91g/t Au from initial mining shapes.

Managing Director Alex Rovira commented:

“These results have surpassed expectations. They affirm our focus on Yunndaga as a near-term underground opportunity and show we’re only scratching the surface of its potential.”

A second-phase 5,000m RC and diamond drill program will begin in June to expand mineralisation at depth and increase resource confidence.

Brightstar’s Menzies and Laverton hubs are set to deliver a Definitive Feasibility Study in 1H CY25, while the company continues production from the Second Fortune and Fish underground mines in parallel.