Copper Fox Metals Provides PEA and Operational Update on Van Dyke ISCR Project

About this update from Copper Fox Metals Inc.

Calgary, Alberta--(Newsfile Corp. - April 21, 2026) - Copper Fox Metals Inc. (TSXV: CUU) (OTCQX: CPFXF) (FSE: HPU) ("Copper Fox" or the "Company"), through its wholly owned subsidiary Desert Fox Van Dyke Co., is pleased to provide an update on the Van Dyke ISCR project located in the Globe-Miami Mining District, Gila County, Arizona. Preparation of the preliminary economic assessment (PEA) and development of the 3-D numerical groundwater flow model continues to advance at a steady pace. The Van Dyke copper project is recognized as a potential near term, mid-size, environmentally friendly, sustainable copper project with a 17-year mine life and a production capacity of 85 million pounds of Grade A 99.99% pure copper cathode per year located in the center of the prolific Miami-Inspiration Mining District, approximately 90 miles east of the recently commissioned Florence ISCR copper project. Activities Locations for the underground access to the deposit, SX-EW plant and related infrastructure have been selected. An updated mineral resource estimate (MRE) to support the PEA is planned. A preliminary semi-regional 3-D groundwater flow model has been constructed; calibration of the model is in progress. Two additional hydrogeological monitoring and groundwater sampling sites are expected to come online in May 2026. Elmer B. Stewart, President and CEO of Copper Fox, stated, "We are pleased with the progress of the PEA and look forward to preparation of an updated MRE that could potentially impact both the resource classification and amount of contained soluble copper in the deposit. The preliminary groundwater flow modelling, which has benefitted significantly from the vast amount of available hydrogeological data from the greater Miami area, is progressing and expected to better inform predicting the "sweep" efficiency, (essentially a measure of how effectively the leaching fluid contacts and dissolves the soluble copper minerals from a deposit) and future copper production." Updated PEA The updated PEA will be prepared in accordance with the Canadian disclosure requirements of National Instrument 43-101 - Standards and Disclosures for Mineral Projects (NI 43-101) and the requirements of Form 43-101 F1. Moose Mountain Technical Services will manage preparation of the PEA supported by RGC Hydro Services LLC, Samuels Engineering, and Stantec. This PEA team h...

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