One Bullion Ltd. has commenced its 2026 diamond drilling programme at the Vumba Gold Project in Botswana, launching a 3,000-metre campaign aimed at defining the continuity, geometry and structural controls of known gold mineralisation.
The company, which holds full ownership of three exploration projects in Botswana, said the programme will comprise approximately 3,000 metres of HQ diamond drilling across 10 holes.
The first hole is already underway, with drilling focused initially on three priority mineralised structural corridors identified through an integrated review of geological, geochemical, drilling and geophysical data.
The programme follows the completion of a detailed technical review incorporating historical and 2022 drilling, trenching, surface sampling, geological mapping, geochemistry and a recently completed high-resolution airborne magnetic survey.
Rather than treating magnetic anomalies in isolation, One Bullion said the geophysical data is being interpreted alongside known gold mineralisation and other geological evidence to improve understanding of Vumba’s structural architecture.
“This is an important step forward for One Bullion and the Vumba Gold Project,” said Adam Berk, Chief Executive Officer of One Bullion. “Over the past several months, our technical team has brought together the historical drilling, recent surface work, geochemistry, geology and new high-resolution geophysics into a much clearer understanding of the structural framework. We are now testing the areas where multiple independent datasets point to the strongest potential for continuity and scale.”
He added: “The focus of this program is to move Vumba from identifying gold mineralization to defining the geometry, continuity and structural controls of the system. The results will help us build a stronger three-dimensional geological model, refine our understanding of the highest-priority zones and position the Company for the next phase of systematic exploration.”
The initial drilling targets the Central, South and North corridors. The Central corridor is the company’s highest-priority area, combining known gold mineralisation, historical drilling, high-grade surface occurrences and a structurally complex geological setting.
The South corridor contains historical drilling and trenching associated with an interpreted steep structural and lithological trend, while the North corridor contains established mineralisation associated with arsenic, sulfidation and favourable mafic host rocks.
Oriented HQ core and systematic downhole surveying will be used to generate detailed structural information. The drilling will investigate the continuity of mineralised structures at depth, the true geometry of mineralised zones, controls on higher-grade shoots, structural bends and intersections, as well as quartz-vein, sulphide and alteration patterns.
One Bullion said the information generated from the first holes will be incorporated into an evolving three-dimensional geological model, allowing subsequent drill positions to be refined as new results emerge.
Additional targets identified during the technical review will remain in the exploration pipeline for potential follow-up drilling.
Meanwhile, work is progressing at the company’s Maitengwe Gold Project, where an airborne geophysical survey has been completed and is being processed and interpreted.
The results will be integrated with existing geological, geochemical and structural information to help refine targets for future exploration and drilling.
One Bullion’s immediate priorities at Vumba include completing and logging the initial drill holes, collecting oriented-core and structural data, conducting laboratory analyses and updating the three-dimensional geological model as results become available.