Askari Metals Confirms Continuous Polymetallic Mineralisation at Uis Pegmatite Target

Robust Polymetallic Mineralisation Validated by Trenching

Askari Metals Limited (ASX:AS2) has bolstered its Uis Project in Namibia with compelling assay results from its Phase 1 trenching program at the PS Pegmatite Target. The results confirm continuous polymetallic mineralisation, featuring standout grades such as 6,670 ppm tin (Sn), 0.49% lithium oxide (Li2O), 465 ppm tantalum (Ta), 2,020 ppm rubidium (Rb), and 134 ppm caesium (Cs). This polymetallic suite aligns with the company's previous trenching successes at the OP and DP pegmatite targets, reinforcing the project's potential as a critical minerals hub.

The systematic trenching, conducted at approximately 40-metre spacing, exposed the main PS pegmatite over a 260-metre strike length with an additional 140-metre parallel pegmatite. The continuous nature of mineralisation across these structures provides a strong foundation for the upcoming reverse circulation (RC) drilling campaign planned for the second half of 2026. This trenching dataset is instrumental in refining drill targeting and advancing the project towards a maiden JORC (2012) Mineral Resource estimate.

Strategic Location and Historical Context Enhance Project Appeal

Located adjacent to the operating Uis Tin Mine; owned by Andrada Mining Limited (LSE:ATM); the Uis Project benefits from proximity to a proven mining district and established infrastructure. The nearby mine hosts a JORC-compliant resource of 77.51 million tonnes at 0.79% Li2O, 0.15% Sn, and 82 ppm Ta, underscoring the geological potential of the region. Furthermore, the project enjoys direct access to the Walvis Bay Deepwater Port, less than 230 kilometres away via sealed roads, facilitating potential future logistics and export operations.

Historical exploration at Uis has yielded high-grade mineralisation, with prior rock chip sampling at PS returning up to 3.05% Li2O and 1.63% SnO2, while earlier reverse circulation drilling by Askari Metals recorded intercepts including 4 metres at 0.16% SnO2 and 4 metres at 314 ppm Ta2O5. However, previous drilling at PS was limited by suboptimal targeting due to surface cover, making the recent trenching results particularly significant as they validate and extend the known mineralisation footprint.

Polymetallic Potential Across Multiple Commodities

The PS pegmatite exhibits strong grades across several critical minerals. Tin intercepts from trenching include intervals such as 3.14 metres at 3,577 ppm Sn and 5.32 metres at 1,249 ppm Sn, while lithium oxide assays highlight intervals exceeding 0.3% Li2O; commonly regarded as a threshold for spodumene pegmatites; with notable results like 4.55 metres at 0.4% Li2O. Tantalum concentrations are robust, with values up to 465 ppm Ta, comparable to the adjacent Uis Tin Mine resource grades.

Rubidium and caesium, less commonly reported but increasingly critical, also demonstrate encouraging mineralisation. Rubidium oxide assays average around 0.10% Rb2O, rivalling the Mt Edon Critical Mineral Project in Western Australia, while caesium concentrations, though modest at surface due to weathering effects, are expected to improve with drilling into fresh rock. These elements have diverse applications spanning biomedical research, electronics, defence, and emerging technologies, enhancing the strategic value of the Uis Project’s polymetallic profile.

Next Steps and Exploration Pipeline

Askari Metals plans to commence its next phase of RC drilling in H2 2026, initially targeting the OP pegmatite before expanding to include DP, PS, and the spodumene-rich K9 pegmatite, the latter of which has yet to be drill tested. The company also intends to conduct soil geochemical surveys on adjacent licences and further trenching campaigns to delineate additional targets. Pending assay results from the K9 target, expected mid-May 2026, will provide further clarity on the project's scope.

These developments follow the company's broader exploration momentum, including a maiden drilling campaign at the Nejo Gold and Copper Project in Ethiopia and prior trenching successes at Uis, as detailed in the recent maiden drilling at Nejo and polymetallic potential and robust polymetallic mineralisation at OP target announcements. The continuity of mineralisation across multiple pegmatite targets within a district-scale project area positions Askari Metals to unlock significant value in the critical minerals sector.