Koba Reports Up to 26.1% Tin Assays; Maiden Drilling to Target Jiminy and Kitchener

Exceptional Surface Sampling Results

Koba Resources Limited (ASX – KOB) has revealed outstanding initial exploration results from its Stannary Hills Tin-Tungsten Project in Queensland, with rock chip assays returning tin grades as high as 26.1%. These results stem from a reconnaissance sampling program conducted in late 2025 across several high-priority prospects, including Kitchener, Jiminy, Ontario, Lass O’Gowrie, and Young Australian.

The Jiminy Prospect stands out with a large, previously underexplored tin-in-soil geochemical anomaly measuring 1.5 kilometres by 0.3 kilometres. Sampling here yielded some of the highest grades, including 26.1% tin, highlighting the prospect’s significant potential. Meanwhile, the Kitchener Prospect, historically the most productive area within the project, confirmed widespread high-grade outcropping mineralisation with assays up to 13.5% tin.

Strategic Drilling Plans and Further Exploration

Building on these promising surface results, Koba is preparing to commence its maiden drilling program in late Q1 2026, targeting the highest priority zones such as Jiminy and Kitchener. This drilling campaign aims to test the depth and continuity of the mineralisation, which remains largely untested below surface, especially at Jiminy.

Complementing the drilling preparations, the company has completed an extensive soil sampling program in December 2025, collecting 172 samples across Kitchener and Ontario prospects. Results from this program are anticipated in February 2026 and are expected to refine and potentially expand drill targets. Additional exploration activities planned for 2026 include induced polarisation geophysical surveys and further geological mapping to better understand tungsten potential and develop a robust pipeline of targets.

Market Context and Project Significance

The timing of these exploration successes is particularly favourable given the recent surge in tin prices, which rose more than 25% in January 2026 following a 30% increase throughout 2025. This price rally is driven by supply concerns, notably from Indonesian export restrictions, underscoring tin’s growing strategic importance in global markets.

Koba’s Managing Director, Ben Vallerine, emphasised the quality of the mineral system and the company’s strong position to unlock value – “Our initial field programs have delivered outstanding results, confirming extensive, high-grade tin mineralisation at surface. The large, untested anomalies at Jiminy and the historical production at Kitchener provide compelling drill targets. We are well positioned to commence drilling in late-Q1 2026 to realise the significant potential of the Stannary Hills Project.”

Looking Ahead

Beyond Stannary Hills, Koba is also advancing exploration at its Mt Garnet Tin-Tungsten Project, following successful reconnaissance sampling in late 2025. The company’s integrated approach combining geochemical sampling, geophysical surveys, and drilling aims to rapidly progress these projects towards resource definition.

While the surface sampling results are highly encouraging, the true test will come with drilling outcomes that confirm the scale and grade continuity at depth. Investors and analysts will be watching closely as Koba embarks on this critical phase of exploration in the coming months.