Aruma Resources Limited (ASX:AAJ): What Do the Latest Tillex Copper Intercepts Show?

Aditi Sarkar

11 November 2026 08:00 PM AEDT

Aruma Resources Limited (ASX:AAJ): What Do the Latest Tillex Copper Intercepts Show?

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Highlights

New Phase 2 diamond drilling results were reported from holes TX26-014 and TX26-015 at Tillex.
TX26-014 included a 27.7-metre downhole interval grading 1.51% copper and 5.69 g/t silver.
The company interpreted a copper-mineralised zone over approximately 245 metres of strike.
Additional completed holes await laboratory results, while no mineral resource has been established.

Aruma Resources Limited (ASX:AAJ) is a minerals explorer advancing the Tillex Copper-Silver Project in Ontario, Canada, within the Timmins Mining district. Its November 2026 exploration update described further diamond drilling intersections from Phase 2 of the Tillex programme and outlined follow-up assays. The results contribute to understanding mineralisation at the project, but drilling intersections should not be confused with mineral reserves or future mine production.

Latest Phase 2 Drill Results

Hole TX26-014 returned 27.7 metres grading 1.51% copper and 5.69 grams per tonne silver from a downhole depth of 49.3 metres. A separate interval in the same hole returned 11.25 metres at 1.43% copper and 13.69 grams per tonne silver from 94.75 metres. These intervals provide two observations of copper-silver mineralisation within a single hole, rather than two independently defined resources.

Hole TX26-015 returned 6.54 metres at 1.21% copper and 5.17 grams per tonne silver from 58.66 metres. Aruma Resources Limited (ASX:AAJ) also described mineralisation in more than one rock unit. All reported depths and widths refer to drilling intersections; actual mineralised thickness may differ because the relationship between drill direction and geological structures has not been fully determined.

Interpreting the Tillex Copper Zone

The company’s November update interpreted the mineralised zone over approximately 245 metres of strike, around 70 metres in width and more than 20 metres vertically. These are exploration interpretations supported by available holes, not a JORC resource estimate. The structure remains open, meaning its boundaries have not been established by drilling.

Earlier 2026 work at Tillex also included a reported 89-metre interval at 2.04% copper and 12.31 grams per tonne silver in hole TX26-004. Such broader intersections offer context for the newer results, but they need geological correlation to establish how mineralised intervals connect. Aruma Resources Limited (ASX:AAJ) is therefore seeking continuity across multiple holes rather than relying on one prominent result.

Outstanding Assays and Further Exploration

The Phase 2 programme has included holes TX26-006 through TX26-015, with further drilling carried out beyond those reported results. At the time of the November update, assays from TX26-016 to TX26-023 were pending. These holes were designed to test possible extension of the copper zone towards the south-west.

The wider Tillex Trend extends for roughly 3.2 kilometres of prospective strike, substantially more than the portion tested in detail. Aruma Resources Limited (ASX:AAJ) has not established continuous mineralisation across that full distance. Future drilling will need to separate areas with demonstrated mineralisation from targets that are prospective only. Management indicated that Phase 2 exploration could continue into early 2027.

Geological and Operational Uncertainties

Tillex remains an exploration project. The geometry of the zone, the position of its boundaries and consistency of copper and silver grades require further drilling and interpretation. Downhole intervals cannot be treated automatically as true widths. Geological interpretation can also change as new holes are sampled and mapped.

Aruma Resources Limited (ASX:AAJ) also faces the practical challenges of scheduling laboratory work and drilling in northern Ontario. Results that establish strike extension could inform future resource work, but an actual resource estimate would require sufficient geological confidence, assay quality and estimation. The company has not reported a mining decision or demonstrated commercial extraction.

Key Insights

The November 2026 Tillex update adds measured downhole copper-silver intersections and supports Aruma Resources Limited (ASX:AAJ)’s current geological interpretation. Pending assays may refine the zone’s dimensions, but its continuity and any mineral resource remain unconfirmed. The distinction between exploration results and economic development is central to understanding the project.

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