"Capstone Mining Company explores, develops and produces base metals through a diversified portfolio of assets in the United States, Mexico, and Canada.
It also owns certain development projects in Canada and Chile. The mining company is engaged in the exploration of copper, lead, zinc, silver, molybdenum, and gold.
The portfolio consists of two copper exploration mines: US-based Cozamin and Mexico-based Pinto Valley.
The base metal producer also owns a fully permitted copper-iron-gold project in Sando Domingo in Chile.
Capstone purchased the Cozamin Project in January 2004 and commenced development activities at the project in October. In 2013, the company acquired Pinto Valley property from BHP. The project is located in the Arizona’s Globe-Miami mining district.
Capstone Mining Company claims that the Pinto Valley exhibits potential to become a productive mining district in the United States.
Capstone presently focuses on positioning the open-pit mine for optimizing higher copper prices in time through innovation, low-capital and quick payback projects to increase the operational performance of the mining zone.
PV3 and PV4 studies are focusing on optimization and evaluation of the mine’s growth potential in the long run, the exploration company claims. According to the PV4 study, the measured and indicated resources are estimated at 1.36 billion tons. Through Jetti Resources’ patented catalyst technology, the company claimed Pinto Valley mine had demonstrated positive results in the dump leach performance.
By using the novel technology, Capstone aims to increase the copper production to 300-350 million pounds within the next two decades, reportedly.
In December 2020, the company reportedly deployed coarse particle flotation technology by Eriez Floatation Division. The mineral exploration company claims that initial pilot plant testing showed copper recovery rate between 6 to 8 per cent.
Santo Domingo is another wholly-owned copper-iron-gold project of Capstone Mining. The base metal producer claims that the poly metallic project is the only fully permitted greenfield project in Chile. The project is located 130 km northwest of Copiapo and 50 KM southwest of Codelco’s El Salvador copper mine.
In 2019-2020, the mine life was extended to around ten years from earlier four years due to 50 per cent increase in silver and copper output.
The company regularly uploads investor-related documents, technical reports, and resource estimates on the official website.