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Oceana Lithium Limited (ASX: OCN, “Oceana” or “the Company”) is pleased to add uranium to the target list of prospective elements at its 100% owned Napperby Project in the Northern Territory, Australia.
Highlights
Napperby Project, Northern Territory, Australia
- Oceana’s Napperby Project covers some of Arunta Province’s hottest granites plutons, the Wangala Granite (uranium) and Ennugan Mountains Granite (uranium/thorium)
- Both granite plutons show outstanding uranium/thorium ratios and are almost fully encapsulated within Napperby’s EL32836 and ELA32841
- Follow-up exploration activities will target uranium and Rare Earth Elements (REEs) in parallel with Lithium-Caesium-Tantalum (LCT) pegmatites
The project is located within the highly prospective Arunta Province, which is endowed with some of the most prospective rocks for lithium, Rare Earth Elements (REEs) and uranium mineralisation in the Northern Territory.
The Paleoproterozoic Wangala and Ennugan Mountains granites have long been recognised as “Hot Granites” and known to be anomalously enriched in a range of elements including U, Th, P, F and REEs.
As shown in Figure 1, both granite plutons show outstanding Uranium/Thorium ratios and are almost fully encapsulated within Oceana’s Napperby Project leases EL32836 and ELA32841 (under application).
Over the years, several mineral occurrences with uranium and uranium/thorium have been recorded by the Northern Territory Geological Survey, with uranium being more common in the Wangala Granite and uranium/thorium occurring in the Ennugan Mountains Granite.
Further to the south in the Ngalia Basin there are several mineral occurrences and deposits recorded including the Napperby Uranium Deposit, with a JORC 2012 Inferred Mineral Resource of 9.54Mt at 382ppm U3O8 (refer to Core Exploration Ltd - ASX Announcement dated 12/10/2018) and the Cappers Deposit where Air Core hole NAC122 intercepted 2.2m @ 211ppm U3O8 from 3.55m (refer to Energy Metals - ASX Announcement dated 17/09/2009).
Figure 1: Map showing U/Th ratio and known uranium, thorium and REEs mineral occurrences at Napperby Project
The following passages are taken from the independent geological report included in the Oceana’s prospectus and are still very relevant today.
Recent publications by the Northern Territory Geological Survey refer to the Wangala Granite as a composite multi-phase pluton that has been subject to a late hydrothermal event of ca 1575Ma (Chewings) age, which has introduced phosphorus, uranium, fluorine, tin, tungsten and REEs.
Of particular interest is a poorly exposed muscovite-rich granite with abundant pegmatite bodies at the eastern end of the pluton, believed to be the final phase of intrusion. This phase is especially fertile for both Niobium-Yttrium-Fluorine (NYF) and Lithium-Caesium-Tantalum (LCT) segregations in pegmatite, yet surprisingly there are very few analyses for lithium. Bed-rock interpretation indicates this phase is extensive in the sub-crop beneath alluvial-colluvial flats.
This area has been subject to shallow geochemical drilling mainly for uranium exploration in the 1970s, but there is no information on the lithological and geochemical nature of the bedrock.
The contact zones and the eastern termination of the Wangala pluton against Lander Formation are highly prospective for rare-element pegmatites and REEs but still totally unexplored.
The Ennugan Mountains Granite of 1621 Ma (post Yambam) age is a two-phase pluton. The southern phase is an I-type biotite-hornblende granite which implies derivation from lower crustal melting. It is characterised by lenses of biotite schist with elevated uranium, thorium, phosphorus, fluorine and REEs.
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OCN:AU
American Salars Lithium
Investor Insight
American Salars Lithium’s strategic focus on scalable, brine-based lithium projects in Tier 1 jurisdictions makes it a compelling investment opportunity, poised to become a leading consolidator of lithium salars globally.
Overview
American Salars Lithium (CSE:USLI,OTC:USLIF,FWB:Z3P) is an exploration-stage company focused on acquiring, developing and monetizing lithium brine projects across the Americas. With a strong emphasis on low-cost entry and resource expansion, the company is executing a disciplined strategy to build a portfolio of scalable assets in highly strategic jurisdictions.
Salar de Pocitos
At the core of American Salars’ strategy is the belief that lithium demand—driven by both electric vehicles and emerging stationary storage applications—will surge in the coming years. The company is positioning itself now to benefit from a long-term price recovery, focusing on assets that are attractive to major producers and investors.
Unlike many junior miners that pivot with market fads, American Salars has remained laser-focused on lithium since inception. The company is not built for short-term trading but for long-term investors seeking exposure to a growing portfolio of lithium salars with eventual exit potential.
American Salars is executing a focused, value-driven strategy designed to maximize returns for shareholders through disciplined asset acquisition, resource growth and positioning for future monetization. The company’s approach to lithium investing involves acquiring undervalued assets during market downturns with the objective of capitalizing on future price recoveries. This opportunistic acquisition model allows the company to secure high-potential projects at low entry costs while minimizing dilution and preserving capital.
The company prioritizes lithium brine projects due to their lower development costs, faster resource delineation, and smaller environmental footprint. Its assets provide a foundation for scalable resource development through targeted drilling, advanced aquifer modeling, and ongoing environmental permitting. By focusing on brines, American Salars can efficiently build a strong, technically de-risked project pipeline with lower exploration overhead. Ultimately, American Salars is building its portfolio with a clear path to strategic exits.
Company Highlights
- American Salars Lithium is taking advantage of depressed lithium prices to acquire undervalued assets with long-term scalability and world-class exit potential. The company targets assets with clear upside potential, particularly in brine-rich jurisdictions like Argentina and Nevada.
- The company’s holdings include four lithium projects: Salar de Pocitos (Argentina), Black Rock South (Nevada, USA), Jaguaribe Pegmatite (Brazil), and the Quebec Lithium Portfolio (Canada).
- Located in the Lithium Triangle of Salta, Argentina, the flagship Pocitos 1 is an 800-hectare brine project shares a 760,000-tonne inferred lithium carbonate equivalent (LCE) resource and excellent expansion potential.
- Brine-based lithium resources offer lower environmental impact, faster resource delineation, and reduced development costs compared to hard rock alternatives.
- Several of the company’s team members have been involved in multi-million-dollar lithium asset sales. Recent deals in the region (e.g., Alpha Lithium, Neo Lithium, Arcadium) provide a roadmap for monetization.
Key Projects
Salar de Pocitos
Salar de Pocitos is American Salars Lithium’s flagship asset, located in Argentina’s lithium-rich Puna region in Salta Province. The Pocitos 1 block covers 800 hectares and has demonstrated significant brine potential through past drilling and testing campaigns. The property shares a 760,000-ton inferred lithium carbonate equivalent (LCE) resource, though it's important to note that this resource estimate was derived from earlier drilling and included Pocitos 2, which American Salars does not own. However, all drill holes contributing to that estimate were located within Pocitos 1, where the company holds 100 percent ownership. Drilling has intersected aquifers at depths ranging between 365 to 407 meters, with lithium concentrations up to 169 parts per million (ppm). Notably, strong brine flow rates were sustained for over five hours, and core sample porosity tests returned excellent values between 6 percent and 14 percent.
Ekosolve pilot plant testing on brines from Pocitos 1 produced lithium carbonate at 99.89 percent purity with recovery rates of 94.9 percent, confirming the extractive potential of the salar. The project’s high lithium concentrations within a compact footprint present compelling scalability potential, and American Salars is actively pursuing an expanded land position to increase its overall brine resource base. Environmental baseline studies are underway in preparation for a future production scenario. An updated NI 43-101 compliant resource estimate is also anticipated as part of the company’s near-term development strategy.
With strong local partnerships and a seasoned team of lithium veterans on the ground, Pocitos stands out as one of the most promising early-stage brine assets in Argentina. The Company signed a letter of intent on March 3rd 2025 to acquire an additional 13,080 hectares on the salar.
Black Rock South
The Black Rock South project is located in the Black Rock Desert basin in Nevada, USA. The Black Rock Desert region is known for geothermal activity and proximity to established lithium operations, such as Albemarle’s Silver Peak Mine—the only currently producing lithium brine operation in North America. American Salars’ property is strategically situated just 72 miles north of Tesla’s Gigafactory and 93 miles southwest of Thacker Pass, placing it in a geopolitically important supply zone for US battery manufacturing.
The project consists of a large sedimentary basin with known geothermal activity, indicating the potential for a brine-hosted lithium aquifer at depth. A 2024 soil sampling program returned 33 of 38 samples with lithium values above 100 ppm, including a peak of 180.5 ppm and an average of 131 ppm. These values trended in a northeast direction, suggesting structural controls that could host lithium-enriched aquifers.
An NI 43-101 report has been completed, and the company is now evaluating geophysical programs and structural modeling to define high-certainty drill targets. Depths to target aquifers are anticipated to be 800 to 1,000 meters, requiring significant capital investment. To address water usage concerns, the company is exploring the use of direct lithium extraction (DLE) technologies, which offer lower environmental impact by returning processed water to the aquifer.
Jaguaribe
Located in the northern coastal state of Ceará, Brazil, the Jaguaribe project spans 18,083 hectares and targets lithium-bearing LCT (lithium-cesium-tantalum) pegmatites. This historically artisanal mining district has previously produced lithium, coltan (niobium-tantalum) and tin. Recent Phase 1 surface exploration by American Salars identified multiple wide pegmatite dykes of up to 30 meters in width and 300 meters in length, indicating a robust and laterally continuous system.
Initial geochemical assays returned lithium oxide grades of up to 3.72 percent, 2.15 percent and 1.58 percent, alongside notable concentrations of cesium (554.5 ppm), tantalum (135 ppm) and niobium (177 ppm). These high-grade surface samples confirm Jaguaribe’s potential as a high-impact, hard-rock lithium project in a jurisdiction with favorable mining laws and growing lithium sector interest. The company plans to conduct detailed mapping, channel sampling and geophysical surveys to define drill-ready targets. The scale, grade and historic mining context make Jaguaribe American Salars’ top-ranked hard rock project.
Quebec Lithium Portfolio
American Salars controls three hard rock lithium exploration properties in Quebec, Canada: Xenia West & East, Lac Simard South, and Leduc East, together totaling over 11,500 hectares. These properties are located in proximity to well-known lithium districts, including Sayona Mining's and Brunswick Exploration’s land holdings. The Xenia projects, comprising 92 claims (5,382 ha), are located 30 km southeast of Val-d’Or and lie within the Pontiac Geological Subprovince, known for its lithium-rich pegmatites.
Lac Simard South, spanning 80 km southwest of Sayona’s Authier project, is accessible via gravel roads and logging routes, and offers excellent infrastructure for exploration and future development. Leduc East, a 6,100-hectare block north of Gatineau, is the most recently acquired and sits in a highly prospective greenstone belt. While these assets are still in early-stage development, they offer extensive historic pegmatite mapping, cost-effective acquisition history, and multiple targets identified from legacy data.
The company plans to execute low-cost sampling and reconnaissance work in the near term to add value and keep the claims in good standing. Given the surge in M&A activity across Quebec’s lithium belt, this portfolio offers substantial optionality.
Management Team
Nick Horsley – President, CEO and Director
Nicke Horsley has more than 19 years of experience in public markets, M&A and resource development. He is the founder of American Salars and is deeply aligned with shareholders.
Christopher Cooper – Director
Christopher Cooper is a former director at Alpha Lithium, which was acquired for over $300 million. He has extensive experience in lithium exits and corporate development.
Rodney Campbell – Director
Rodney Campbell has extensive experience in oil and gas and capital markets, with strong institutional connections.
Daryn Gordon – CFO
Daryn Gordon is an experienced chief financial officer with more than 20 years in audit and financial services, specializing in Canadian junior mining companies.
David Guerrero – Argentina Advisor
David Guerrero is the former country manager for Alpha Lithium. He has deep in-country expertise in Argentina and extensive lithium development experience.
Phillip Thomas – Qualified Person (Argentina)
Phillip Thomas has over 20 years’ experience in lithium brine geology. He was previously involved with Rincon, Pozuelos and other major Argentine salars.
William Feyerabend – Qualified Person (Nevada)
William Feyerabend is an expert in lithium exploration and technical reports across Nevada and Latin America.
Mitchell Lavery – Qualified Person (Quebec)
Mitchell Lavery is a veteran geologist with over 40 years of experience across gold, base metals and lithium in Canada.
