Introduction
Mineral Mountain is a ‘drill ready’ Laramide age, porphyry copper project located in the Mineral Mountain Mining District, 16 miles east of Florence, Arizona. A four-hole (2,000m) ‘maiden’ drilling program is planned for October 2025 to test the large porphyry copper footprint identified in 2024. Arizona is a Tier 1 mining friendly , politically secure jurisdiction with excellent and readily accessible infrastructure.
The project is located in the Laramide age copper province in Arizona situated in a major northeast trending, porphyry copper belt that hosts some of the largest porphyry copper deposits in Arizona including Santa Cruz and Resolution. The project is located approximately 25 kilometers (km) (15 miles) southwest from Rio Tinto and BHP’s giant Resolution porphyry copper-molybdenum deposit and approximately 25km northeast of Taseko’s Florence Copper project.
Property Description
Copper Fox, through its subsidiary Desert Fox Mineral Mountain Co., owns 100% interest in the Mineral Mountain project. The Project consists of two Arizona Mineral Exploration Permits and 260 BLM mining claims covering approximately 2,633.8 ha (6,508.2 acres). The project is not subject to third party encumbrances.
Geological Model
The porphyry copper deposits in the Safford Mining District of Arizona are used as geological/ exploration models for the project. The large copper footprint at Mineral Mountain is interpreted to represent the oxidized surface expression of a buried, gold enriched, porphyry copper-molybdenum system. The level of exposure at Mineral Mountain represents the interface between the Sericite-Chlorite and Potassic alteration zones of the interpreted buried porphyry copper system. Recent exploration identified a new area of porphyry style mineralization and alteration 1.5km southeast of the targets designated for drilling in October 2025. This target is currently being assessed.
Porphyry Footprint
The porphyry footprint is an open-ended northeast trending zone of coincident porphyry style mineralization and alteration underlain by a strong positive chargeability anomaly (>9mv/v/18mrad) measuring approximately 3,200m long by 1,200m wide hosted in phyllic (sericite-chorite) and potassic altered Laramide age porphyritic biotite granodiorite and quartz monzonite. The open-ended, chargeability/resistivity anomaly extends below the depth of penetration of the geophysical survey. The mineralization is characterized by a copper-magnetite (now hematite) assocation with enhanced gold-molybdenum concentrations. The porphyry footprint hosts over 800 occurrences of secondary and primary copper mineralization (chrysocolla, malachite, chalcocite +/- covellite +/- chalcopyrite). Modeling of multi-element geochemical data defined an area within the footprint measuring approximately 3,000m by 700m of greater than 1,000 parts per million (ppm) copper within which occurs two zones (1,500m by 750m and 750m by 500m) of greater than 30ppm molybdenum.
Planned 2025 Drill Program
A four-hole (2,000m) drilling program to test two areas of higher chargeability within the porphyry footprint is planned for October 2025. A brief description of the drill targets is presented below.
Target 1 is a zone of coincident gold enriched copper-molybdenum mineralization measuring approximately 1,200m long by up to 900m wide underlain by a strong positive chargeability anomaly. The mineralization occurs in quartz-copper, quartz-copper-hematite and copper-hematite veinlets, in fractures and as disseminations in potassic and sericite-chlorite altered porphyritic and phaneritic biotite granodiorite and quartz monzonite.
Target 2 is a zone of copper mineralization underlain by a chargeability anomaly interpreted to start at approximately 300m below surface. The tarket is underlain by porphyritic quartz monzonite, biotite granodiorite, granite and late stage granodioritic, hornblende dacit and aplite dikes. The copper mineralization (malachite-chrysocolla-chalcocite) is similar to that exposed in Target 1 hosted in phyllic and prophylitic altered porphyritic quartz monzonite, biotite granodiorite,and granite. The molybdenum signature in this target is subdued compared to Target 1.