Pinto Valley

Single open-pit porphyry copper mine. Located approximately 11 miles west of Globe, Arizona, accessed via US Highway 60 with grid power. Property covers approximately 10 square miles of patented land and 467 unpatented mining claims within the Tonto National Forest. Producing steadily with mine life extended to 2039. Hypogene ore body hosted in Precambrian-age Lost Gulch Quartz monzonite. Originally commenced production in 1974 and acquired by Capstone in 2013. Conventional grinding and flotation concentrator with a 56,000 tpd capacity, plus an SX-EW facility processing pregnant leach solution. Flagship US copper asset.