The work program, which follows the Company's March 2, 2026 announcement of Environmental Impact Assessment ("EIA") approval from the Province of Chubut, is designed to lay the groundwork for a potential future Mineral Resource Estimate ("MRE") on the Guanaco concessions in the near term.1

In conjunction with the field mobilization, Jaguar has engaged Atticus Geoscience Consulting Ltd. ("Atticus") and its strategic partner Caracle Creek SpA ("Caracle Creek") as the Company's lead independent technical consultants for the Phase 1 program at Guanaco. Atticus and Caracle Creek bring deep South American operating experience and an extensive track record of preparing mineral resource estimates and technical reports compliant with both U.S. Securities and Exchange Commission ("SEC") Subpart 1300 of Regulation S-K ("S-K 1300") and Canadian National Instrument 43-101 - Standards of Disclosure for Mineral Projects ("NI 43-101") disclosure standards across uranium and other commodities.

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