Rome Resources (RMR ) has released final assay results from its recent drilling campaign at the Kalayi deposit within the Bisie North project in the Democratic Republic of Congo.
Among the highlights of the drilling were 9.5 metres at 2.05% tin, 19.5 metres at 0.52% tin, five metres at 1.88% tin, and 6.5 metres at 0.97% tin.
The length-weighted average tin grade from all samples in this campaign above a 0.5% cut-off rings in at 2.41%, representing world-class grade potential.
These assay results complete the latest drilling programme and will now be incorporated into an updated resource estimate, targeted for this month.
The current resource estimate, released in November 2025, comprises an inferred resource of 0.33 million tonnes grading 1.36% tin for 4,470 tonnes of contained tin.
Alongside the assay programme, the company continues to advance the Kalayi pilot mining project, and has also completed the airborne geophysical survey, both of which are expected to support the next phase of development and exploration at Bisie North.
"We are delighted to now have received the final assays from the latest Kalayi drilling campaign, which now enables us to progress the updated tin mineral resource estimate for Kalayi targeted for in or around July 2026,” said Paul Barrett, chief executive of Rome Resources.
“The latest programme has continued to demonstrate wider mineralised zones than previous campaigns whilst maintaining high-grade tin intervals. Our objective has been to improve continuity and increase contained tin within the Kalayi resource, and we believe these results provide a strong foundation for the forthcoming mineral resource estimate.”
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A length-weighted average grade of 2.41% tin across all mineralised samples above a 0.5% cut-off represents an exceptionally high average grade for a tin exploration project and compares favourably with many of the world's leading tin deposits. The next moment of truth will be the resource update, due within the month.