Can Red Mountain rival Thacker Pass? Venari Minerals (ASX: VMS) readies maiden resource

Venari Minerals NL (ASX: VMS) has completed the central drilling dataset for its 100%-owned Red Mountain Lithium Project in Nevada, following the receipt of a second tranche of strong lithium assay results from its October 2025 campaign. With this data in hand, the Australian lithium exploration firm is now advancing toward the release of its maiden Mineral Resource Estimate (MRE), anticipated in December.

The latest update covers four drill holes, RMRC019, RMRC020, RMRC024, and RMRC025, and each of them returned broad and continuous lithium-bearing intervals, including multiple high-grade zones. The announcement reinforces the project’s scale and builds anticipation for what could be one of Nevada’s next major claystone lithium discoveries.

How significant are the latest lithium intercepts from Venari’s October drilling campaign?

Drill-hole RMRC019 recorded a standout cumulative lithium mineralised intercept of 166.1 metres, with peak sub-zones including 29 metres at 1,460 parts per million lithium (ppm Li), 10.7 metres at 1,480 ppm Li, and 24.4 metres at 1,300 ppm Li. RMRC020 followed with a combined 56.4 metres of lithium mineralisation from near-surface, featuring 24.4 metres at 1,600 ppm Li beginning at just 4.6 metres depth.

Drill-hole RMRC024 delivered an even more extensive interval, intersecting 182.8 metres of lithium-bearing material. This included 10.7 metres at 1,590 ppm Li from 195.1 metres depth and additional high-grade subzones, highlighting both continuity and depth potential. Meanwhile, RMRC025 intersected 115.9 metres, with internal high-grade intercepts of 12.2 metres at 1,697 ppm Li and 10.7 metres at 1,641 ppm Li.

These assays confirm that lithium mineralisation remains open to the north, south, and down-dip, indicating further exploration potential outside the central zone. Collectively, the results complete the data package needed for the upcoming maiden MRE, which is expected to anchor Venari Minerals’ resource narrative in the lithium-rich Great Basin.

How does Red Mountain compare to Nevada’s other claystone lithium deposits?

The Red Mountain Lithium Project is situated in central-eastern Nevada, adjacent to U.S. Route 6. The project is geologically hosted within the Horse Camp Formation, a tertiary-aged lacustrine sedimentary unit known to contain lithium-rich clays. Similar geological settings host two of the state’s leading claystone lithium assets: Lithium Americas Corporation’s Thacker Pass project, which has a resource of 62.1 million tonnes lithium carbonate equivalent (LCE), and American Battery Technology Corporation’s Tonopah Flats project, which hosts 15.8 million tonnes LCE.

While Red Mountain is still at the pre-resource stage, Venari Minerals has reported consistent mineralisation across 19 drill holes completed through four exploration campaigns. To date, nearly every hole has returned significant lithium results, and the mineralisation zones have demonstrated strong lateral and vertical continuity.

In contrast to some earlier-stage lithium projects, Red Mountain’s mineralisation is shallow, extensive, and associated with clay-rich horizons that have shown promising metallurgical recovery rates. These attributes place it in a competitive position as a development-stage asset, particularly within a U.S. supply chain increasingly focused on securing domestic lithium production capacity.

What do leach test results and metallurgical studies say about Red Mountain’s viability?

Venari Minerals has previously conducted scoping-level metallurgical testwork to determine the extractability of lithium from its Red Mountain samples. Results have shown leach recoveries of up to 98 percent under varied temperature, acid strength, and duration conditions. This is a key differentiator, as lithium-bearing claystone deposits often require complex processing solutions.

Additionally, beneficiation testwork has demonstrated the potential to upgrade mineralisation to lithium concentrations as high as 4,480 ppm in clay concentrates. This suggests that Red Mountain material could be amenable to cost-effective processing routes, potentially supporting favourable economics for downstream conversion.

With lithium mineralisation appearing in thick, continuous horizons, and positive early-stage metallurgical response, Red Mountain is increasingly being seen as a technically robust candidate for further development. These parameters could prove valuable as Venari Minerals moves toward scoping and feasibility phases post-MRE.

What is the outlook for the maiden Mineral Resource Estimate and exploration strategy?

Venari Minerals has confirmed that the maiden MRE for the Red Mountain Lithium Project is on track for release in December 2025. The estimate will be based on the completed 13-hole dataset from the central project zone. Seven additional holes from the October campaign, drilled in the northern project zone, are currently pending assay results and may contribute to a future resource expansion.

Executive Director and Chief Executive Officer Matthew Healy and Chairman Tony Leibowitz have both reaffirmed their confidence in the project’s scale. In public remarks, they noted that the October drill campaign validated the project’s high-grade potential and reinforced the team’s geological model.

Beyond the initial MRE, Venari Minerals has signaled its intent to pursue additional technical studies, including more advanced metallurgy and preliminary engineering. The company’s strategy appears geared toward defining an economically viable claystone lithium asset with a clear path to development, including potential engagement with partners or strategic investors following the MRE milestone.

How are investors and the market responding to Venari’s lithium progress?

Following the announcement, shares of Venari Minerals rose by 6.7 percent to A$0.016, with intraday trading volumes exceeding one million shares. While the company’s market capitalization remains modest at approximately A$17 million, the trading response suggests renewed investor interest tied to the Red Mountain resource build-out.

Venari Minerals’ stock has delivered a one-year return of negative 40.74 percent, reflecting the challenges faced by many early-stage lithium explorers amid fluctuating market sentiment. However, analysts tracking the Nevada lithium sector have noted that a well-executed maiden MRE could serve as a near-term catalyst. The broader macro context, marked by Inflation Reduction Act incentives, rising EV battery demand, and U.S. critical minerals policies, also supports attention on lithium juniors with North American assets.

While institutional coverage remains limited due to Venari’s microcap status, retail investor forums and lithium-focused watchlists have begun circulating commentary on the Red Mountain project. Market observers believe that if the MRE validates the consistency of mineralisation indicated in the drilling data, it could attract strategic attention and potential JV interest.

What sets Red Mountain apart from other pre-resource lithium plays?

Unlike many other early-stage exploration projects in the region, Red Mountain offers a combination of shallow, thick lithium intervals, strong leachability, and highway-accessible infrastructure. The drill spacing is appropriate for early-stage exploration, and claystone-hosted lithium appears across a broad footprint, not limited to isolated lenses.

Importantly, Venari Minerals has consistently published full assay tables, cross-sections, and geological context, supporting transparency and credibility around the resource development process. The Red Mountain area is also under 100 percent control through subsidiary Needles Holdings Inc., with drill activities fully certified by the Bureau of Land Management.

Geologically, the mineralisation aligns with regional tectonics and volcanic processes that have generated multiple large-scale lithium clay deposits across the Basin and Range province. Red Mountain’s location and mineral profile may also position it for future processing synergies or regional consolidation.

What are the key takeaways from Venari Minerals’ latest Red Mountain update?

• Venari Minerals NL (ASX: VMS) has completed central zone drilling at its Red Mountain Lithium Project in Nevada, setting the stage for a maiden Mineral Resource Estimate in December 2025.

• The four reported drill holes returned thick, continuous lithium mineralisation, including RMRC025’s 12.2 metres at 1,697 ppm Li and RMRC019’s 29 metres at 1,460 ppm Li.

• Lithium mineralisation remains open in multiple directions, supporting the potential for resource expansion beyond the central zone.

• Metallurgical testing has shown lithium leach recoveries of up to 98 percent and successful beneficiation to high-grade clay concentrates.

• Red Mountain is geologically hosted in the Horse Camp Formation, the same unit associated with major claystone lithium deposits in Nevada.

• Seven drill holes from the northern portion of the project are pending assay results, which may support a future MRE expansion.

• Shares of Venari Minerals rose 6.7 percent intraday following the news, with volumes surpassing one million shares.

• The Red Mountain project continues to compare favorably to peers such as Lithium Americas’ Thacker Pass and American Battery Technology’s Tonopah Flats.

• Analysts see the upcoming MRE as a key de-risking milestone that could position the project for strategic investment or JV opportunities.

• Venari Minerals has committed to advancing Red Mountain through technical studies following the MRE release, with strong early indicators supporting a path to development.