Revival of Copper Mining in Arizona through Bioleaching Innovations
In Arizona, a resurgence in copper mining is driven by rising demand and new bioleaching technology. Companies like Gunnison Copper are reviving previously unprofitable sites to meet growing U.S. copper needs, with 50% of consumption still reliant on imports.

Gunnison Copper is at the forefront of a movement in Arizona's mining sector, leveraging bioleaching to extract copper from previously deemed unviable ores. The Johnson Camp Mine, which was closed in 2010, is being revitalized using this method, aiming for a production target of 25 million pounds of copper annually.
The state is pivotal, producing around 70% of U.S. copper, with several projects capitalizing on existing infrastructure. Taseko's Florence project plans in-situ extraction, while the Resolution-Copper project faces delays due to regulatory challenges. The success of bioleaching could transform older mining sites into economically viable operations, enhancing domestic copper supply.




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