South Atlantic Gold Expands Pedra Branca Land Package with Two New Tenement Filings and Advances Magnetic Inversion & Structural Targeting

(TheNewswire)

Vancouver, BC – December2 nd 2025 – TheNewswire - South Atlantic Gold Inc. (TSX-V: SAO) (“South Atlantic”or the “Company”) is pleased to announce the filing of two new mineral explorationtenement applications with the Agência Nacionalde Mineração (“ANM”) in Ceará State, Brazil. Theseapplications, covering a combined ~3,970 hectares ,expand the Company’s Pedra Branca land package to over 52,000 hectares andcapture ground directly along trend with priority magnetic andstructural features.

Douglas Meirelles , President and CEO of South Atlantic Gold, commented:

“Over the past 60 days, ourstructural analysis has already revealed new potential targets inpreviously untested areas. Acting quickly, we secured two additionaltenements that strengthen our position and further consolidate PedraBranca as a true district ? scale opportunity. Inparallel, our technical team is advancing the magnetic inversion andLeapfrog integration, refining our structural interpretation andbringing us closer to defining priority drill targets.”

Technical Progress

Magnetic Inversion

• 3D susceptibility models from UAV magnetic surveys havebeen completed, with higher resolution blockinversions (20 m cell size) revealing NE trendingstructures and step over/flower featuresconsistent with shear related mineralizationmodels.

• Reduction to pole (RTP) processing has improved source localization,highlighting anomalies in underexplored northern blocks.

Regional Context

• Initial inversion of government TMI/RTP data has beencompleted, with higher resolution inversionpending.

• Regional structures appear to align withproject scale anomalies, reinforcing the broaderexploration potential.

New Tenements

• Process 48065.800552/2025 59 –1,978 hectares across Pedra Branca, Independência, and Boa Viagemmunicipalities.

• Process 48065.800553/2025 01 –1,992 hectares in Pedra Branca municipality.

Click Image To View Full Size

Figure 1 –Map of the Claims of Pedra Branca Projectincluding the New Claims (October of 2025).

Sources: 1. CPRM (Brazilian Geological Survey) -Project “Troia–Pedra Branca” integrated geophysical datapublished in 2015.

2. ? ? Historical Soil andStream Sediment sampling by Unamgem/Noranda? Falconbridge (80'sto 90's) and Jaguar – MSOL (2007-2011).

Qualified Person’s Statement

The scientific and technical information that forms thebasis for parts of this news release was reviewed and approved byMarcelo Antonio Batelochi (P.Geo.), MAUSIMM (CP), the Company’sExploration Manager who is a Qualified Person as defined by NI43-101.

About South Atlantic Gold Inc.

South Atlantic is an exploration company engaged inacquiring and advancing mineral properties in the Americas.  Forfurther information, please visit our website at www.southatlanticgold.com .

ON BEHALF OF THE BOARD

Douglas Meirelles, President and CEO

For more information regarding thisnews release, please contact:

Douglas Meirelles, President and CEO

T: 250-762-5777
Email: ir@southatlanticgold.com

Cautionary Note RegardingForward-Looking Information

This news release contains statements that constitute“forward-looking Information”, as such term is used in applicableCanadian securities laws.  Such forward-looking information involvesknown and unknown risks, uncertainties and other factors that maycause the Company’s actual results, performance or achievements, ordevelopments in the industry to differ materially from the anticipatedresults, performance or achievements expressed or implied by suchforward-looking information. Forward-looking information includesstatements that are not historical facts and are generally, but notalways, identified by the words “expects,” “plans,”“anticipates,” “believes,” “intends,” “estimates,”“projects,” “potential” and similar expressions, or thatevents or conditions “will,” “would,” “may,” “could”or “should” occur. Forward-looking information in this newsrelease includes the Company’s strategies and the Company’sabilities to execute such strategies, the Company’s expectations forthe Pedra Branca project, and the Company’s future plans andobjectives.

Although the Company believes the forward-lookinginformation contained in this news release is reasonable based oninformation available on the date hereof, by its natureforward-looking information involves assumptions and known and unknownrisks, uncertainties and other factors which may cause our actualresults, level of activity, performance or achievements, or otherfuture events, to be materially different from any future results,performance or achievements expressed or implied by suchforward-looking information.

Examples of such assumptions, risks and uncertaintiesinclude, without limitation, assumptions, risks and uncertaintiesassociated with general economic conditions; adverse industry events;the receipt of required regulatory approvals and the timing of suchapprovals; that the Company maintains good relationships with thecommunities in which it operates or proposes to operate, futurelegislative and regulatory developments in the mining sector; theCompany’s ability to access sufficient capital from internal andexternal sources, and/or inability to access sufficient capital onfavorable 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 bevalid or reliable, which could result in delays,or cessation in planned work, risks associated with the interpretationof data, the geology, grade and continuity of mineral deposits, thepossibility that results will not be consistent with the Company’sexpectations, as well as other assumptions risks and uncertaintiesapplicable to mineral exploration and development activities and tothe Company, including as set forth in the Company’s publicdisclosure documents filed on the SEDAR+ website atwww.sedarplus.ca.

THE FORWARD-LOOKING INFORMATIONCONTAINED IN THIS NEWS RELEASE REPRESENTS THE EXPECTATIONS OF THECOMPANY AS OF THE DATE OF THIS NEWS RELEASE AND, ACCORDINGLY, ISSUBJECT TO CHANGE AFTER SUCH DATE. READERS SHOULD NOT PLACE UNDUEIMPORTANCE ON FORWARD-LOOKING INFORMATION AND SHOULD NOT RELY UPONTHIS INFORMATION AS OF ANY OTHER DATE. WHILE THE COMPANY MAY ELECT TO,IT DOES NOT UNDERTAKE TO UPDATE THIS INFORMATION AT ANY PARTICULARTIME EXCEPT AS REQUIRED IN ACCORDANCE WITH APPLICABLE LAWS.

Neither TSX VentureExchange nor its Regulation Services Provider (as that term is defined in policies of the TSX Venture Exchange ) accepts responsibilityfor the adequacy or accuracy of this release.

Copyright (c) 2025 TheNewswire - All rights reserved.