Koba Resources Prepares Maiden Drilling After Exceptional 26.1% Tin Assays in Queensland

Queensland Projects Deliver Eye-Catching Tin Grades

Koba Resources (ASX:KOB) has unveiled outstanding tin assay results from its recently acquired Queensland tin-tungsten assets, with rock chip samples hitting up to 26.1% tin (Sn) at the Stannary Hills Project. These grades, recorded across multiple prospects including Jiminy and Kitchener, underscore the underexplored potential of the Herberton Tin Field, Australia's second-most prolific tin district.

The company is advancing towards its maiden drilling campaign targeting four high-priority prospects: Stannex, Gilmore, Kitchener, and Jiminy. Notably, the Stannex Prospect features a substantial 2km by 0.5km tin-in-soil geochemical anomaly with only six historical drill holes, while the Jiminy Prospect remains completely undrilled despite extensive high-grade surface mineralisation.

Recent field efforts include a drone LIDAR survey over Kitchener and Jiminy to refine drill targeting and the commencement of tungsten-focused rock chip sampling at Mt Garnet, marking the first systematic approach to tungsten exploration in the area. Historical drilling near Gilmore has returned significant tungsten intercepts, such as 3m at 1.2% tungsten (W) from 27m depth, highlighting the dual metal potential of these projects.

Yarramba Uranium Drilling Advances with Results Pending

In South Australia, Koba completed a 23-hole follow-up drilling program at the high-grade Everest Uranium Prospect within the Yarramba Project. This follows the discovery of extensive uranium mineralisation exceeding 1,000ppm U3O8 during the initial drilling phase. Results from this campaign are anticipated in early May 2026, which could provide a clearer picture of the project's uranium resource potential.

The Yarramba tenure covers over 250km of uranium-bearing palaeochannels, including strike extensions of deposits owned by Boss Energy Ltd, situating Koba’s project within a world-class uranium district. Alongside Everest, advanced prospects such as Oban, Berber, Delord, and Chivas have shown promising high-grade intersections, setting the stage for further drilling in the second half of 2026.

Financial Position Supports Aggressive Exploration

At the end of March 2026, Koba held about A$3.75 million in cash with no new equity raises during the quarter. Exploration expenditure totaled approximately A$403,000, primarily allocated to Queensland tin-tungsten projects and the Yarramba uranium program. The company is actively preparing drill sites and finalising permits to initiate drilling imminently, reflecting a disciplined approach to advancing its portfolio.

This progress builds on earlier capital raises, including a $4.35 million placement completed in late 2025, which funded the acquisition and initial exploration activities of the Queensland projects. The combination of strong assay results and a solid cash position positions Koba to unlock value through its upcoming drilling campaigns.

Exploration Next Steps and Strategic Focus

Koba’s near-term agenda involves commencing drilling at the Gilmore Mine and Stannex Prospect, alongside initiating tungsten-focused sampling to convert promising targets into drill-ready projects. The company will also extend soil sampling along key trends such as Jiminy and Great Eastern and trial an Induced Polarisation (IP) survey to enhance drill targeting. These systematic efforts aim to build a robust pipeline of high-quality drill targets across its Queensland portfolio.

Meanwhile, the Yarramba Project’s follow-up uranium drilling results will be closely watched for indications of resource expansion and grade continuity. The company’s ability to integrate these diverse exploration activities while managing capital efficiently will be critical to maintaining momentum.

These developments come after the company’s initial reconnaissance programs, which have already confirmed the presence of widespread, high-grade mineralisation across multiple prospects. The upcoming drill results and ongoing fieldwork will be pivotal in defining the scale and economic potential of Koba’s tin-tungsten and uranium assets.

With drilling about to commence, the company’s strategy to target both high-grade tin and tungsten in Queensland, alongside advancing uranium exploration in South Australia, reflects a diversified approach to resource discovery in two distinct commodities markets. The stakes are high as Koba seeks to translate surface sampling successes into meaningful underground resources.

These moves follow earlier announcements that detailed the company’s acquisition and initial sampling results, including the exceptional 26.1% tin assays and the 23-hole uranium drilling program recently completed at the Everest Prospect, situating Koba at a critical juncture ahead of key assay releases.