Vancouver, BC – October 9, 2025 – TheNewswire - South Atlantic Gold Inc. (TSX-V: SAO) (“South Atlantic” or the “Company”) is pleased to announce two important developments: the acquisition of an extra 4.2k ha (“hectares”) of UAV magnetic survey data followed by a comprehensive review of the cumulative total of all UAV data acquired to date (totaling 6.8k ha) at its Pedra Branca Project in Ceará State, Brazil, and the appointment of Mr. Matt Rees, P.Geo. as Technical Advisor to the Board.
Douglas Meirelles, President and CEO of South Atlantic Gold, commented:
“We are excited to welcome Matt to our team. His 13 years of leadership at IAMGOLD, combined with his global exploration expertise will be invaluable as we advance Pedra Branca. At the same time, the recently acquired additional UAV magnetic survey data provides us with a powerful new dataset that, under the guidance of our Technical Committee, will sharpen our target definition and accelerate our path toward discovery and development.”
UAV Magnetic Survey Review Underway
As part of its strategy to delineate priority drill targets and design the next exploration program at Pedra Branca, the Company has commenced a detailed review of the UAV magnetic survey data:
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Magnetic Data Reprocessing: The geophysics team has begun reprocessing the entire 6,800 hectares of UAV magnetic survey data (see Figure 1 map) using lowlatitude algorithms tailored to the region. This work is enhancing structural interpretation and highlighting crosscutting features of interest, and represents a small fraction survey area, across the Company’s districtscale Pedra Branca land package of more than 48,000 hectares
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Integration with 3D Modeling: The reprocessed data is being incorporated into the Leapfrog™ 3D geological model, enabling refined drill targeting and evaluation of mineralized continuity at depth.
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Technical Committee Oversight: South Atlantic’s Technical Committee has identified priority areas where magnetic anomalies align with geochemical trends and structural corridors, warranting follow-up mapping, sampling, and potential drill testing.
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Advancing the Oxide Starter Concept: In parallel, the Company is reviewing historical metallurgical data to assess the potential for a near-surface oxide starter operation, while continuing to evaluate deeper, high-grade orogenic gold targets.
Appointment of Matt Rees, P.Geo., as Technical Advisor
Mr. Rees brings over four decades of international exploration and operational experience. He holds a M.Sc. in Geology from the University of Saskatchewan (1992) and is a registered Professional Geoscientist (P.Geo.). Previously he had been with IAMGOLD Corporation since 2012, serving as Manager of New Opportunities (2012–2018) and subsequently as Chief Geologist (2018–2025). His career also includes senior technical roles and advisory positions with several companies since 1989. Mr. Rees is also an active member of the Society of Economic Geologists (SEG). In 2023 he also assumed the Chair of the Industry Advisory Board to the Mineral Exploration Research Centre (MERC) under the Metal Earth (ME) project, part of the Harquail School of Earth Sciences at Laurentian University.
Next Steps
- Completion of magnetic reprocessing and QA/QC.
- Integration of results into Leapfrog™ for updated 3D targeting.
- Field validation through mapping, soil and stream-sediment sampling.
- Review of historical drill core for additional sampling opportunities.
- Definition of priority drill targets for the next exploration program at Pedra Branca.
Figure 1 – Outline of the new UAV data in contrast with the previous UAV Survey.
Qualified Person’s Statement
The scientific and technical information that forms the basis for parts of this news release was reviewed and approved by Marcelo Antonio Batelochi (P.Geo.), MAUSIMM (CP), the Company’s Exploration Manager who is a Qualified Person as defined by NI 43-101.
About South Atlantic Gold Inc.
South Atlantic is an exploration company engaged in acquiring and advancing mineral properties in the Americas. For further information, please visit our website at www.southatlanticgold.com.
ON BEHALF OF THE BOARD
Douglas Meirelles, President and CEO
For more information regarding this news release, please contact:
Douglas Meirelles, President and CEO
T: 250-762-5777
Email: ir@southatlanticgold.com
Cautionary Note Regarding Forward-Looking Information
This news release contains statements that constitute “forward-looking Information”, as such term is used in applicable Canadian securities laws. Such forward-looking information involves known and unknown risks, uncertainties and other factors that may cause the Company’s actual results, performance or achievements, or developments in the industry to differ materially from the anticipated results, performance or achievements expressed or implied by such forward-looking information. Forward-looking information includes statements that are not historical facts and are generally, but not always, identified by the words “expects,” “plans,” “anticipates,” “believes,” “intends,” “estimates,” “projects,” “potential” and similar expressions, or that events or conditions “will,” “would,” “may,” “could” or “should” occur. Forward-looking information in this news release includes the Company’s strategies and the Company’s abilities to execute such strategies, the Company’s expectations for the Pedra Branca project, and the Company’s future plans and objectives.
Although the Company believes the forward-looking information contained in this news release is reasonable based on information available on the date hereof, by its nature forward-looking information involves assumptions and known and unknown risks, uncertainties and other factors which may cause our actual results, level of activity, performance or achievements, or other future events, to be materially different from any future results, performance or achievements expressed or implied by such forward-looking information.
Examples of such assumptions, risks and uncertainties include, without limitation, assumptions, risks and uncertainties associated with general economic conditions; adverse industry events; the receipt of required regulatory approvals and the timing of such approvals; that the Company maintains good relationships with the communities in which it operates or proposes to operate, future legislative and regulatory developments in the mining sector; the Company’s ability to access sufficient capital from internal and external sources, and/or inability to access sufficient capital on favorable terms; mining industry and markets in Canada and generally; the ability of the Company to implement its business strategies; competition; the risk that any of the assumptions prove not to be valid or reliable, which could result in delays, or cessation in planned work, risks associated with the interpretation of data, the geology, grade and continuity of mineral deposits, the possibility that results will not be consistent with the Company’s expectations, as well as other assumptions risks and uncertainties applicable to mineral exploration and development activities and to the Company, including as set forth in the Company’s public disclosure documents filed on the SEDAR+ website at www.sedarplus.ca.
THE FORWARD-LOOKING INFORMATION CONTAINED IN THIS NEWS RELEASE REPRESENTS THE EXPECTATIONS OF THE COMPANY AS OF THE DATE OF THIS NEWS RELEASE AND, ACCORDINGLY, IS SUBJECT TO CHANGE AFTER SUCH DATE. READERS SHOULD NOT PLACE UNDUE IMPORTANCE ON FORWARD-LOOKING INFORMATION AND SHOULD NOT RELY UPON THIS INFORMATION AS OF ANY OTHER DATE. WHILE THE COMPANY MAY ELECT TO, IT DOES NOT UNDERTAKE TO UPDATE THIS INFORMATION AT ANY PARTICULAR TIME EXCEPT AS REQUIRED IN ACCORDANCE WITH APPLICABLE LAWS.
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