Cooper Metals confirms copper-gold mineralisation across two Mt Isa prospects

Drilling confirms mineralisation at Ardmore North and Attina

Cooper Metals Limited (ASX:CPM) has moved two of its Mt Isa East prospects from surface targets to drill-confirmed copper-gold systems, with mineralisation reported at both Ardmore North and Attina. The maiden reverse-circulation program comprised 16 holes for 1,984 metres, including 13 holes at Ardmore North and three at Attina.

At Attina, hole 26MIE-016 returned 5 metres at 1.21% copper and 0.22 grams per tonne gold from 112 metres, including 2 metres at 2.07% copper and 0.36 g/t gold. Ardmore North produced a shorter but higher-grade intersection in hole 26MIE-005 of 2 metres at 2.66% copper and 0.54 g/t gold from 22 metres, including 1 metre at 4.91% copper and 0.99 g/t gold. The company reports intervals as downhole lengths, with true widths yet to be determined.

The results extend the exploration story outlined in the maiden Mt Isa drilling, which previously reported the completion of the first RC campaign at the prospects. Nine of 13 Ardmore North holes returned copper above the company’s reporting cut-off, while mineralisation remains open at depth at both prospects. Ardmore North is also open to the south along strike, and the extent of mineralisation along strike at Attina remains untested.

Pyramid acquisition shifts focus to drill targeting

Cooper completed its acquisition of 100% of the Pyramid Gold Project in July, issuing 15 million shares to AIC Mines Limited (ASX:A1M), which became Cooper’s largest shareholder. The project covers about 150 square kilometres in Queensland’s Drummond Basin and includes the Gettysberg Fault corridor.

A sample-level review of the historical database is now under way, covering 151 drillholes and 10,975 assayed samples collected between 1987 and 2023. Cooper says primary gold assays for 115 holes have been traced to original laboratory certificates, while 53 multi-element analytes and recovered silver data are being incorporated into the geological review. The work is intended to support three-dimensional modelling and an inaugural drill program planned for the December 2026 quarter. No new exploration results have been reported, and the historical material has not been re-sampled or re-assayed.

That work follows the Pyramid Gold acquisition, which brought the project into Cooper’s portfolio through an asset swap with AIC Mines. The company says gold mineralisation at Gettysberg has been outlined over more than 500 metres of strike, while roughly 8 kilometres of the Gettysberg Fault corridor remains largely untested. Those figures describe exploration potential, not a current mineral resource.

Philippine copper deal adds scale and execution risk

After quarter end, Cooper signed a binding agreement to acquire 85% of Chalterra, which holds an option to acquire 100% of the Colet Copper Project in Negros Occidental in the Philippines. The transaction requires shareholder approval and an independent expert report on whether it is fair and reasonable to shareholders.

Colet contains more than 124,000 metres of historical drilling across the Don Jose and A1 porphyry copper deposits. Cooper’s initial work will focus on validating that historical information, with drilling planned for early 2027. The company has expressly cautioned that the project’s 2012 historical estimate was prepared under JORC 2004, has not been independently verified, and cannot currently be treated as a JORC 2012 Mineral Resource.

Capital raising addresses a short cash runway

Cooper held A$1.24 million in cash at 30 September, down from A$1.81 million three months earlier. Quarterly cash outflows totalled A$664,000 across operating activities and capitalised exploration, giving the company an estimated 1.9 quarters of funding on the Appendix 5B calculation before the latest fundraising is fully reflected.

The company has issued 28.75 million shares through a A$2.15 million placement at 7.5 cents a share and is undertaking a fully underwritten one-for-four non-renounceable entitlement issue expected to raise about A$2.7 million. Both components include free attaching options, with the entitlement offer open at the report date. The proceeds are intended to support the expanding exploration portfolio, but the funding also increases the importance of disciplined sequencing across Mt Isa East, Pyramid and Colet.