Key Highlights

  • Maiden diamond drilling began at Walwa on 16 October 2026, a 1,500-metre programme described as the first diamond drilling there in decades.
  • The company agreed in August 2026 to acquire the Yamarna district gold project in Western Australia.
  • An extraordinary general meeting is convened for 10 November 2026.

Dart Mining NL (ASX:DTM) began maiden diamond drilling at its Walwa Tin-Tantalum Project in north-east Victoria on 16 October 2026, as reported to the ASX on 22 October. The programme covers 1,500 metres and is described as the first diamond drilling at Walwa in decades. It tests tin-bearing aplite-pegmatite dykes below historically mined levels and a conceptual greisen target interpreted 400 to 600 metres below surface. The company separately agreed in August 2026 to acquire the Yamarna district gold project in Western Australia.

What the company actually does

Dart Mining is a small exploration company that has reshaped its portfolio through 2026. It agreed in March 2026 to sell the Buckland Gold Project in Victoria to Daybreak Minerals Pty Ltd for A$300,000 in cash, plus a right for Daybreak to subscribe for up to A$500,000 of Dart shares subject to shareholder approval, and signed a A$7 million non-binding term sheet covering a wider sale of Victorian projects. It has added the Walwa tin-tantalum ground and Skarn Ridge, and it retains Coonambula in Queensland.

Latest verified developments

The Walwa programme follows a run of results there. On 16 September 2026 the company reported high-grade tin and tantalum confirmed at Walwa, and on 25 August it set out priority drilling targets. Nine drill pads have been surveyed and permitted on existing tracks, allowing the programme to expand. A seismic survey interpreted up to four additional dykes, each over four metres thick. On 20 August 2026 Dart announced a binding agreement to acquire the Yamarna district gold project in Western Australia, covering 865 square kilometres across Yamarna South and Yamarna North, together with a A$2 million placement at A$0.0085 per share. An extraordinary general meeting has been convened for 11.00am on 10 November 2026 and will be held virtually.

Financial and operational evidence

The FY26 statutory accounts, lodged on 30 September 2026 for the year ended 30 June 2026, show a net loss after tax of A$4,010,052, narrowed from A$11,625,651 in FY25, with cash of A$343,142 and net cash used in operating activities of A$1,064,279. A consolidated current liabilities total was not stated; the consolidated current line items sum to about A$1,692,253. At Walwa, historic intercepts include nine metres at 0.38 per cent tin oxide from 89 metres and 6.1 metres at 0.58 per cent tin oxide from 35.1 metres, while a June 2026 in-situ pegmatite sample returned 3.96 per cent tin with 165 parts per million tantalum. Historic drilling at Walwa was mostly shallow percussion work, averaging about 50 metres.

Risks and pressure points

Cash of A$343,142 at 30 June 2026, against annual operating outflows above A$1 million, leaves the company dependent on the August placement proceeds and on further funding. The directors prepared the accounts on a going concern basis and stated they believe the group will continue as a going concern for the foreseeable future, while noting it expects to be cash absorbing until its tenements demonstrate economically recoverable reserves. The Yamarna acquisition remains subject to conditions including due diligence, shareholder approval and a royalty deed. Historic Walwa tonnage estimates from 1982 and 1983 are not reported under JORC and are not treated as current Mineral Resources.

Milestones to watch

Assay results from the 1,500-metre Walwa diamond programme are the next substantive output. The extraordinary general meeting on 10 November 2026 and completion of the Yamarna acquisition are both outstanding. Completion of the Buckland sale, and any firm agreement following the March 2026 Victorian term sheet, could remain in focus, as could the September 2026 quarterly cash flow report, which would be the first to show the placement proceeds and the pace of spending across the enlarged portfolio.