# Copper Fox Highlights Significant Porphyry Copper-Molybdenum Exploration Indicators at Sombrero Butte, Advancing Permitting Plans for Testing Porphyry Target *2026-07-24T06:00:00-04:00* Copper Fox Highlights Significant Porphyry Copper-Molybdenum Exploration Indicators at Sombrero Butte, Advancing Permitting Plans for Testing Porphyry Target Updated exploration model integrates geophysics, alteration, mineralogy, fluid inclusion studies, and historical drilling to define a large near-surface porphyry copper-molybdenum target in the Laramide copper province of Arizona, USA. Calgary, Alberta--(Newsfile Corp. - July 24, 2026) - Copper Fox Metals Inc.**(TSXV: CUU) (OTCQX: CPFXF) (FSE: HPU) ("Copper Fox" or the "Company")**, through its wholly owned subsidiary Desert Fox Sombrero Butte Co., is pleased to present an updated exploration model for the 100% owned Sombrero Butte project in Arizona, USA. The updated model supports the interpretation that Sombrero Butte hosts a large, highly evolved porphyry copper-molybdenum system within the Laramide copper province of the southwestern United States. The exploration model integrates the 2024 geophysical survey, recent mapping, high-resolution airborne magnetics, petrography, SWIR, whole-rock, trace-element and fertility geochemistry, fluid-inclusion observations, and historical drilling results. Collectively, these datasets define a coherent porphyry-style footprint characterized by a large chargeability anomaly, Laramide intrusive phases, potassic alteration overprinted by intense phyllic and spheroidal sericite alteration, hypersaline fluid inclusions, copper-mineralized breccias and evidence of multiple high-temperature hydrothermal events. Elmer B. Stewart, President and Chief Executive Officer of Copper Fox, stated, "The exploration results at Sombrero Butte bring together the principal geological, geophysical, mineralogical and alteration indicators expected in an Arizona Laramide-age porphyry copper-molybdenum system. The coincidence of hypersaline fluid inclusions, spheroidal sericite, and relic potassic alteration, several hydrothermal events and a large chargeability response strengthen the interpretation that the project hosts a large porphyry system. To drill test this high-quality target Copper Fox has retained an Arizona based consulting company to prepare the required surveys to accompany the submission of the Geological Field Operations Plan (GFOP) to the Arizona State Land Department." **Exploration Model** Figure-1 is a schematic diagram of the updated exploration model for the Sombrero Butte project. The porphyry target is a combination of a large geophysical anomaly, prospective (fertile) intrusive phases, alteration patterns, hypersaline magmatic-hydrothermal fluid inclusions and copper-molybdenum mineralization in veins, fractures, high-grade copper (+/-molybdenum-gold-silver) magmatic hydrothermal breccias and as disseminations in the Copper Creek intrusive. These porphyry related features support the interpretation that the upper or marginal portions of a larger porphyry copper-molybdenum system occurs at depth. [](https://images.newsfilecorp.com/files/2177/306391_538e36b314880bc0_001full.jpg) _Figure-1: Schematic section (looking north) showing Updated Sombrero Butte Exploration Model._ To view an enhanced version of this graphic, please visit: [https://images.newsfilecorp.com/files/2177/306391_538e36b314880bc0_001full.jpg](https://images.newsfilecorp.com/files/2177/306391_538e36b314880bc0_001full.jpg) **Key Porphyry Copper-Molybdenum Indicators** The convergence of multiple independent porphyry indicators at the intersection of two prolific Laramide-age porphyry copper belts in Arizona that hosts the former San Manuel/Kalamazoo porphyry copper mine and the Copper Creek porphyry copper deposit are significant features of the Sombrero Butte porphyry copper target (Figure-2). The porphyry features identified at Sombrero Butte that are typically observed in porphyry copper systems are listed below. - _Strategic Location;_at the intersection of two prolific Laramide-age porphyry copper belts in Arizona. - _Structural control;_located between the Blind Thrust and Holy Joe fault systems. - _Favorable geology;_porphyritic and non-porphyritic phases of hornblende-biotite granodiorite, biotite granodiorite quartz diorite, and quartz monzonite and multiple late-stage dikes of the Copper Creek granodiorite intrusive. - _Geophysical signature;_a 3,200 meter (m) long by 1,300m wide chargeability anomaly (>25 mrad) associated with a moderate (200-500 ohm) resistivity signature. - _Alteration;_early stage potassic (+/- tourmaline) and propylitic overprinted by phyllic (Spheroidal sericite and oxidized quartz-pyrite-sericite veinlets) alteration and lesser amounts of distal a