Toronto-listed junior explorer One Bullion says new high-grade assay results from its Vumba Project are strengthening the case for a potentially significant gold discovery in Botswana, as exploration interest builds in the country’s underexplored greenstone belts.
The company reported gravity-finish re-assays from five previously over-limit samples, returning a top grade of 30.8 grams per tonne gold, alongside results of 22.2 g/t, 17.55 g/t and 11.0 g/t.
The samples were collected from artisanal pits, stockpiles and dumps at Vumba and followed earlier fire-assay results that had exceeded the 10 g/t reporting threshold.
While the grades are considered strong by exploration standards, One Bullion cautioned that the results are based on selective grab sampling rather than a formal mineral resource estimate.
Still, the company believes the results are encouraging.
One Bullion said the mineralised samples span multiple artisanal workings and geological host structures across roughly 2.5 kilometres of strike, suggesting the mineralisation may extend beyond isolated pockets.
That matters because continuity is what turns interesting geology into a viable mining story.
Chief executive Adam Berk said the latest results reinforce the company’s view that Vumba hosts meaningful high-grade mineralisation warranting further work, including drilling.
The company had earlier reported visible gold and selective grab samples grading as high as 679 g/t and 207 g/t, figures that drew attention despite the early-stage nature of the exploration programme.
Beyond Vumba, One Bullion said Botswana’s environmental authorities have approved the Environmental Impact Statement for its Maitengwe Exploration Project, clearing another hurdle for exploration activity.
The developments come as Botswana seeks to revive gold exploration following the closure of Mupane Gold Mine in March 2024.