Key highlights

  • Cooper Metals (ASX:CPM) shares fell 14.67% to $0.064 during the Trading session on 20 October 2026.
  • On 15 October 2026 the company reported maiden RC drilling results at Attina and Ardmore North confirming copper-gold mineralisation.
  • Sixteen holes were drilled for 1,984 metres, of which 991 metres were assayed.

During the trading session on 20 October 2026, shares of Cooper Metals Limited (ASX:CPM) fell 14.67% to $0.064. Separately, on 15 October 2026, the company announced that all assay results had been received from its maiden reverse circulation (RC) drilling at the Attina and Ardmore North prospects in the Mt Isa East Copper-Gold Project in Queensland. The share price move and the announcement occurred on different dates and are not linked in this article.

About Cooper Metals Limited

Cooper Metals is an ASX-listed explorer. Its Mt Isa East Project covers approximately 983 square kilometres of granted tenements and applications in the Mt Isa Inlier. Attina and Ardmore North are two of eleven targets identified across the project by an independent prospectivity review of the Ardmore tenement, reported in June 2024.

Drilling results at Attina

Three holes totalling 468 metres were drilled at Attina. Hole 26MIE-016 returned 5 metres at 1.21% copper and 0.22 g/t gold from 112 metres, including 2 metres at 2.07% copper, and 11 metres at 0.58% copper and 0.13 g/t gold from 121 metres. Hole 26MIE-014 returned 12 metres at 0.60% copper and 0.14 g/t gold from 12 metres, including 1 metre at 1.38% copper.

Drilling results at Ardmore North

Thirteen holes totalling 1,516 metres were drilled at Ardmore North. Hole 26MIE-013 returned 7 metres at 0.93% copper and 0.15 g/t gold from 9 metres, including 1 metre at 3.64% copper, and 8 metres at 0.56% copper and 0.15 g/t gold from 46 metres. Hole 26MIE-005 returned 2 metres at 2.66% copper and 0.54 g/t gold from 22 metres, and hole 26MIE-007 returned 2 metres at 2.51% copper and 0.20 g/t gold from 85 metres.

The company states that the mineralisation remains open at depth at both prospects.

Program scope and follow-up

In total, 16 RC holes for 1,984 metres were completed on EPM 19125. Samples were not assayed continuously, and 991 metres of the 1,984 metres drilled were assayed. The release says gold is present through the copper intervals and that surface mapping suggests steep structures, so holes drilled at an angle across them leave the systems open at depth.

With the results in hand, the company plans targeted field work to follow up key structural contacts and refine section interpretations, ahead of the wet season, before planning further drilling.

Sector backdrop

The Mt Isa Inlier is an established copper and gold province in north-west Queensland. The company’s release refers to corporate interest and transactions in regional copper assets, although it does not name them. Copper is widely used in electrical equipment, and exploration companies in the region compete for tenure, drilling contractors and capital.

Wet-season conditions in northern Queensland can limit field access.

Risks shareholders should weigh

The intersections reported are narrow, and several of the higher-grade intervals are 1 metre wide. Only half the drilled metres were assayed, and the release does not state a resource, so the potential size and continuity of mineralisation have not been established.

Follow-up drilling depends on field work results and available funding, and may be affected by the approaching wet season. At $0.064, the 14.67% fall on 20 October 2026 shows the price Volatility that can affect exploration companies.

What’s next

The company plans targeted field work at both prospects before the wet season, followed by planning of follow-up drilling. Work at other targets within the eleven identified across Mt Isa East will continue to be assessed.