Kaoko Metals reports encouraging start to maiden drilling at Chalkos
Key Takeaways
- •The first two diamond drill holes at Otniel were completed as part of Kaoko Metals' maiden drilling program at Chalkos.
- •Both holes intersected broad zones of visible copper mineralisation.
- •The visible mineralisation still needs laboratory assays to confirm its significance.
- •Drilling is expected to continue at Otniel before the rig moves to the Donkey Hill target.
- •Kaoko is considering adding a second diamond rig to accelerate exploration across the project.

Kaoko Metals (ASX: KAO) has reported an encouraging start to maiden drilling at its Chalkos Project, with the first two diamond drill holes completed at the Otniel prospect intersecting broad zones of visible copper mineralisation.
The drilling represents the first diamond holes ever completed at Otniel, with the initial core providing the company with an early look at the mineralised system beneath the prospect.
That matters because maiden diamond drilling is typically the first chance to test what earlier surface work may suggest at depth, and the company will now rely on laboratory assays to confirm the significance of what was seen in the core. In exploration programs like Chalkos, visible mineralisation is an early field observation rather than a final result, so the assay phase remains the key next step before any broader interpretation.
The company is continuing drilling at Otniel, with the rig then expected to move to the high-priority Donkey Hill target. The completion of the first two holes at Otniel marks an important step in Kaoko’s exploration campaign.
Both holes intersected broad zones of visible copper mineralisation, giving the company its first subsurface information from diamond drilling at the prospect.
Kaoko is also considering bringing in a second diamond rig, which could allow the company to accelerate its exploration program and test multiple targets.
The coming months are therefore set to be an active period for the company, with investors watching for the first assay results from Otniel, continued drilling and the transition of the rig to Donkey Hill.
In this interview with HotCopper, Kaoko Metals managing director Gerard O’Donovan discusses the early drilling results, what the company will be looking for in the upcoming assays and the broader exploration program planned across Chalkos.
Join the discussion: See what’s trending right now on HotCopper, Australia’s largest stock forum, and be part of the conversations that move the markets.
The material provided in this article is for information only and should not be treated as investment advice. Viewers are encouraged to conduct their own research and consult with a certified financial advisor before making any investment decisions. For full disclaimer information, please click here.