Latest Diamond Drilling News

Tambourah Metals has tightened drilling across its Tambourah King gold lode, returning several encouraging intersections ahead of a planned maiden resource estimate. Shallow results at Western Chief add a second exploration thread, although the system remains lightly tested at depth.

Metal Hawk has secured $1.2 million from sophisticated investors as RC drilling begins at the Numbat lode in Western Australia. The campaign will test whether the company’s strongest Leinster South gold intercept extends along strike and at depth.

Cobre has logged copper sulphide mineralisation in its first deep diamond hole at Sierra Atacama since 2021, extending the system below the existing operation. The result is encouraging but remains visual and preliminary, with laboratory assays due in October.

AuKing Mining has reported a 50-metre interval grading 2.03% TREO from surface at its Tundulu rare earths project in Malawi. The result, from drilling about 400 metres west of earlier holes, supports a broader near-surface mineralised footprint but remains exploration-stage evidence.

Olympio Metals has started a roughly 1,500-metre maiden diamond drilling program at its Jacknife silver project in Idaho, targeting mineralisation linked to more than 3.2 million ounces of historical silver production. The campaign is significant, but the company must still verify old data before it can establish a JORC-compliant resource.

Antipa Minerals has extended gold-copper-lead-silver mineralisation across 2.2km at Tim’s Dome, sharpening focus on a large untested electromagnetic conductor. Surface diamond drilling is now underway on the 1.2km target, which remains unproven despite encouraging surrounding assays.

Pursuit Minerals has started its first diamond hole at the Demasía tenement, testing whether lithium-bearing brines extend beyond the existing 1.264 million tonne LCE resource at Rio Grande Sur. Early packer tests recovered brine at shallow depths, but lithium assays are still pending.

Right Resources has begun a fully funded 2,000-metre aircore program at its Blue Prospect near Tumbarumba, testing six tungsten and five gold anomalies for the first time below surface. Assay results are expected progressively during the December Quarter, but the campaign is exploratory and is not designed to define a Mineral Resource.

Sunstone Metals has expanded its Bramaderos gold-equivalent resource to 3.6Moz and reported new Porotillo and Copete discoveries, but its FY2026 accounts carry a material uncertainty over going concern. A post-year-end A$9.94 million placement has improved liquidity, although further equity funding remains central to the exploration plan.

Great Boulder Resources has used FY2026 to make the leap from gold explorer toward producer, acquiring Peak Hill and securing a 481,000-ounce resource alongside its 1.02 million-ounce Side Well project. The strategic shift came with a A$9.93 million loss, a heavily expanded share count and a clear near-term test: whether 40,000 metres of drilling can support development by late 2027.

QMines is spending $2.388 million on two freehold properties that remove a key access constraint over the Botos deposit near Mt Chalmers. The acquisition clears the way for modern drilling, but the deposit remains an untested conceptual opportunity rather than a defined resource.

Magnum Mining has completed more than 10,000 metres of drilling at its Piracanjuba North rare earths project in Brazil and is shifting its main effort to the 32.5km² Plateau Zone. A further 2,000-metre diamond drilling phase will run alongside independent resource, radiological and metallurgical studies, although delayed assay turnaround creates a risk to the company’s November timetable.