Aldoro Confirms Niobium Continuity at Kameelburg’s Northeastern Boundary

Niobium-Rich Horizon Extends Beyond Core

Aldoro Resources Ltd (ASX:ARN) has delivered fresh evidence that the niobium-bearing beforsite phase at its flagship Kameelburg REE-Strontium-Niobium Project in Namibia stretches further northeast than previously confirmed. Diamond drill hole DD003C, designed to test the outer edge of the mineralised carbonatite, returned a substantial 19-meter intercept averaging 0.41% Nb₂O₅, alongside 0.69% total rare earth oxides (TREO) and 3.43% strontium carbonate (SrCO₃).

This intercept confirms the continuity of the niobium-enriched beforsite phase beyond the high-grade REE-Sr core established in earlier holes such as DD003A, suggesting a broader, structurally influenced niobium horizon across the northern flank of the deposit. The result is particularly significant as DD003C sits near the northeastern margin of the central magnetic anomaly, effectively helping to delineate the economic mineralisation boundary for the upcoming Mineral Resource Estimate (MRE).

Layered Mineralisation Reflects Complex Zoning

DD003C intersected three stacked mineralised layers: an upper REE-Sr dominant zone averaging 5 meters at 1.58% TREO and 4.69% SrCO₃, a thick middle niobium-rich beforsite zone, and a lower REE-Sr layer with 7 meters at 1.39% TREO and 4.78% SrCO₃. While the REE-Sr intercepts are narrower and lower grade compared to the central core holes, their presence confirms the multi-commodity architecture extends to the northeastern margin of the carbonatite intrusion.

Strontium carbonate continues to emerge as a major secondary commodity, with broad zones exceeding 3% SrCO₃ across all mineralised layers in DD003C. This aligns with previous findings highlighting strontium’s significance at Kameelburg, reinforcing the project’s dual-commodity potential.

Phase II Drilling Nears Completion, Bulk Sampling Ahead

The DD003C results form part of Aldoro’s recently completed Phase II diamond drilling program, which totals 15 holes and 7,190 meters. Assays have now been received for eight holes, including DD003A, DD004E, DD004F, DD005E, DD005F, DD005G, and DD018A, with seven more assay results expected over the coming weeks, ensuring a steady news flow for investors.

Aldoro is mobilising its Smart 8 drilling rig to commence bulk sampling across the Kameelburg carbonatite, a key step toward metallurgical test work and further development studies. A deeper follow-up hole on the DD003 pad is prioritised to test the strong grade-with-depth trend first observed in DD003A. The updated MRE incorporating all Phase II drilling is anticipated in June 2026.

The ongoing drilling campaign and forthcoming resource update build on a string of recent assay releases that have confirmed a large, continuous multi-commodity mineral system at Kameelburg, including notable niobium and strontium grades extending the deposit’s scale and complexity high-grade niobium intercepts and 387m continuous mineralisation.

Geological Controls and Resource Modelling

Initial geological interpretation places DD003C close to the northeastern boundary of economically significant mineralisation. The narrower and lower-grade intervals relative to the central core holes are consistent with the outer edge of the cake-shaped REE-Sr mineralised core. This boundary definition is crucial for refining the MRE wireframes and improving confidence in resource classification.

The drilling orientation, designed to crosscut mineralised beforsite dykes and sovitic cores, reduces sampling bias and supports the robust geological model underpinning the resource estimate. While true widths of mineralised intercepts remain to be established, the downhole assays provide a reliable snapshot of mineral continuity and grade distribution.