Jaguar Uranium Corp.

Jaguar Uranium Corp. announced assay results from its historical drill-core resampling program at the Berlin Uranium-Rare Earth Project in the Department of Caldas, Colombia, reporting rare earth oxides associated with uranium-phosphate-vanadium mineralization. Selected retained-core intervals returned up to 0.63 m grading 3,570 ppm TREO and 607 ppm MREO, the highest TREO value reported from the selected intervals in this resampling program, along with 1.53 m grading 2,267 ppm TREO and 329 ppm MREO and 0.50 m grading 2,532 ppm TREO and 414 ppm MREO, with reported Nd-Pr-Tb-Dy enrichment within the sampled U-V-phosphate horizon. The tested core was drilled between 2010 and 2012 by U3O8 Corp., and the resampling program was first announced on March 17, 2026. President and Chief Executive Officer Steven Gold said the initial results indicate rare earth elements occur with uranium, phosphate and vanadium mineralization in the selected Berlin core intervals, and the company plans to use them with trenching, geophysics and drilling to refine the geological model and evaluate continuity of mineralization. The company said the results constitute exploration results only and do not represent a mineral resource or mineral reserve, and that any incorporation into future geological modelling and mineral resource work would require additional drilling, continuity assessment, analytical review and other supporting technical studies. Jaguar positioned the Berlin Project within the scope of the recent U.S.-Colombia Critical Minerals Cooperation Agreements, including the Barranquilla Accords established on September 8, 2026.

Jaguar Uranium Corp. announced final copper assay results from its initial rock sampling program at the Huemul Uranium-Copper-Vanadium Project in Mendoza Province, Argentina, with copper grades reaching 8.54%, uranium up to 2.27%, silver up to 708 grams per tonne, and vanadium up to 1.27%. Sampling of strike extensions along the Uryco/Rosa and Black zone trends identified a potential 4-kilometre-long trend of copper mineralization exposed at surface. The company is planning a maiden drill campaign at the project, which includes Argentina's first-ever producing uranium mine, operated from 1955 to 1975. One over-limit uranium sample result exceeding 25,000 parts per million is still pending reanalysis.