WHITE SULPHUR SPRINGS, Mont., May 28, 2026 (GLOBE NEWSWIRE) -- Sandfire Resources America Inc. ("SandfireAmerica" orthe"Company") announces that it has entered into a sixth variation agreement (the "Sixth Variation") to its bridge loan agreement, as amended (the “Bridge Loan”) with Sandfire BC Holdings (Australia) Pty Ltd. ("Sandfire BC"), the Company's largest shareholder, and Tintina Montana Inc., a wholly-owned subsidiary of the Company ("Tintina Montana").

Pursuant to the sixth Variation, the amount available to be borrowed under the Bridge Loan will be increased from an aggregate of up to US$59.5 million to an aggregate of up to US$65.3 million through one or more advances and the latest maturity will be extended from June 30, 2026, to December 31, 2026, subject to the terms of the Sixth Variation and the Bridge Loan.

All other terms and conditions of the Bridge Loan shall remain in full force and effect, except as amended by the Sixth Variation. No securities of the Company are issuable under the Agreement.

CEO, Lincoln Greenidge, shared “Thank you to Sandfire Resources Ltd for their continued financial support and partnership. As we make meaningful progress on updating the recently published Pre-Feasibility Study and advancing other critical activities for the Black Butte Copper Project, we continue to work steadily towards a Final Investment Decision.

This project represents a significant milestone for the state of Montana and for the United States’ efforts to develop a reliable domestic supply of copper, essential to meeting our nation’s growing infrastructure demands. We are truly proud to contribute to America’s critical minerals future in a responsible and sustainable way.”

ContactInformation:
Sandfire Resources America Inc.
Nancy Schlepp, VP of Communications
and Government Relations; Corp. Sec.
Mobile: 406-224-8180
Office: 406-547-3466
Email: nschlepp@sandfireamerica.com

CautionaryNoteRegardingForward-LookingStatements:Certaindisclosuresinthisdocumentconstitute "forwardlookinginformation"withinthemeaningofCanadiansecuritieslegislation,includingstatements regardingtheAgreement,theCompany'sfinancingoptionsandexpectedoutcomes.Inmakingthese forward-lookingstatements,theCompanyhasappliedcertainfactorsandassumptionsthattheCompany believesarereasonable,includingthattheCompanywillreceiverequiredregulatoryapprovals,andthatthe Companywill be able tosecure additionalfundingtoexecute its plans,However,the forward-looking statementsinthisdocumentaresubjecttonumerousrisks,uncertaintiesandotherfactors,includingdelays inobtainingorinabilitytoobtainrequiredgovernmentorotherregulatoryapprovalsorfinancing.There canbenoassurancethatsuchstatementswillprovetobeaccurate,andactualresultsandfutureeventscould differmateriallyfromthoseanticipatedinsuchstatements.Readersarecautionednottoplaceundue relianceonforward-lookingstatements.TheCompanydoesnotintend,andexpresslydisclaimsany intentionorobligationto,updateorreviseanyforward-lookingstatementswhetherasaresultofnew information,futureeventsorotherwise,exceptasrequiredbylaw.

Neither the TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policiesof the TSXVenture Exchange)acceptsresponsibilityfortheadequacyoraccuracyof thisrelease.