Mr. Adam Berk reports

ONE BULLION COMMENCES HIGH-RESOLUTION AIRBORNE GEOPHYSICAL SURVEY AT VUMBA GOLD PROJECT IN BOTSWANA AND APPOINTS JOE VAN WYK AS VICE PRESIDENT, EXPLORATION

One Bullion Ltd. has commenced a high-resolution airborne geophysical survey across its Vumba project in Botswana.

The survey is being conducted by Xcalibur Smart Mapping, which began on July 2, 2026, and is expected to take approximately 10 days to complete. The program will cover the Vumba licence area and will be followed by a subsequent survey over the company's Maitengwe project to the north. The program marks a pivotal step in advancing One Bullion's exploration strategy toward the definition and prioritization of drill targets.

"This is a significant step forward for One Bullion as we continue to systematically advance Vumba toward drilling and reflects the disciplined, data-driven approach that underpins everything we do," said Adam Berk, chief executive officer of One Bullion. "This survey moves us decisively into the next phase of our exploration program. Integrating the geophysical data with our recent high-grade artisanal workings results will allow us to refine our drill targets with confidence as we advance toward a maiden drill campaign at Vumba. With strong momentum across the project, we look forward to providing further updates as results become available."

Highlights:

• High-resolution airborne geophysical survey commenced over the Vumba licence, conducted by Xcalibur Smart Mapping, beginning July 2, 2026;
• Survey expected to take approximately 10 days to fly the Vumba licence, followed by a survey of the Maitengwe project to the north;
• Initial survey results and interpretation anticipated by late July, 2026;
• Geophysical data to be integrated with the company's geology, drill database, sampling and recent high-grade assay results to refine and prioritize drill targets;
• Appointed Joe Van Wyk as vice-president, exploration, a geologist with more than 20 years of international mining experience, to provide on-the-ground oversight of the company's field operations in Botswana;
• Maiden drill campaign at Vumba is fully financed and planned to follow the survey, targeting approximately 3,000 metres expected to commence August, 2026.

Geophysical survey at Vumba

As previously announced, One Bullion engaged Xcalibur Smart Mapping to conduct a high-resolution airborne, horizontal-gradient magnetic survey across the Vumba licence area, to be followed by the same survey configuration of the Maitengwe project. The survey is expected to deliver detailed structural and lithological insights that will significantly enhance target definition at depth and along strike within the broader greenstone belt. The integration of geophysical data with the company's drill database, geological mapping, sampling and assay results, including the recently reported high-grade gold results at Vumba, is expected to accelerate the refinement and prioritization of high-confidence drill targets across the emerging Vumba mineralized corridor.

Strengthening the in-country exploration team

To support its expanding exploration program initiatives in Botswana, One Bullion has appointed Mr. Van Wyk as vice-president, exploration. Mr. Van Wyk is a geologist with more than 20 years of international experience spanning exploration, feasibility and project development. He began his career as an exploration and resource geologist with AngloGold Ashanti and Gold Fields, leading regional target generation and quality-assurance/quality-control programs across Africa, the Americas and Australia. He subsequently led feasibility and resource modelling as a senior resource geologist with TWP Projects/WorleyParsons. More recently, he has held senior executive and advisory roles across the African mining sector, including as founder and chief executive officer of KiBOKO Consulting. Mr. Van Wyk holds a BSc and a BSc (honours) in geology from the University of Pretoria, South Africa. Based in Botswana, Mr. Van Wyk will lead overseeing the on-site exploration activities, the field camp and the company's geological team, providing full operational oversight as drilling preparations advance. His appointment strengthens the company's technical leadership as it advances Vumba toward its maiden drill program and continues to unlock the broader potential of its Botswana assets.

Next steps

Upon completion of the Vumba survey, the company expects to receive and interpret the geophysical data over an approximately 10-day period, with the goal of integrating these results into refined drill targeting. One Bullion is concurrently advancing toward its maiden drill campaign at Vumba, and is currently negotiating a drilling contract and finalizing contract terms. Subject to survey results and contract execution, the company is targeting a drill program of approximately 3,000 metres across approximately 15 holes (each ranging from surface to approximately 200-metre depth), expected to commence in August, 2026. The company will provide further updates as the survey progresses and as drilling plans are confirmed.

Qualified person

The scientific and technical information contained in this news release has been reviewed and approved by Rory Kutluoglu, PGeo, a qualified person as defined under National Instrument 43-101 (Standards of Disclosure for Mineral Projects), who is independent of One Bullion.

About One Bullion Ltd.

One Bullion is a Toronto-based gold exploration company focused on advancing high-quality gold assets in Botswana, one of Africa's most stable and mining-friendly jurisdictions. Established in 2018, the company controls approximately 8,004 square kilometres of prospective land across three greenstone-belt-hosted gold projects, including Vumba, Kraaipan and Maitengwe. One Bullion's strategy centres on disciplined, data-driven exploration combining modern geological methods with advanced targeting to identify and test high-priority gold targets while maintaining a commitment to environmental stewardship, community engagement and long-term value creation for stakeholders.

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