Mantoverde mine
  Mantoverde mine  Mantoverde mine | |
| Location | |
|---|---|
| Atacama Region | |
| Country | Chile |
| Coordinates | 26°33′15″S70°19′00″W / 26.55417°S 70.31667°W / -26.55417; -70.31667 |
| Production | |
| Products | Copper |
| Owner | |
| Company | Capstone Copper (70%)Mitsubishi Minerals (30%) |
The Mantoverde mine is a large copper mine located in northern Chile in the Atacama Region. Mantoverde represents one of the largest copper reserves in Chile and in the world having estimated reserves of 580 million tonnes of ore grading 0.5% copper.[1]
The mine hosted as of January 2025 four open-pits.[2]
In July 2025 a mine expansion plan called Mantoverde Optimizado had its Environmental Impact Declaration approved by authorities allowing for the mine life to increase from 19 to 25 years and to increase its mineral processing capacity from 32,000 to 45,000 metric tons per day.[3]
Together with Capstone Copper's mining project of Santo Domingo it is thought to be able to produce battery-grade cobalt.[2]
A majority of the shares of the mine were bought by Capstone Mining in 2015 from Anglo American Chile, and it was inherited by Capstone Copper after the merge of Capstone Mining and Mantos Copper.[2][4][5] In February 2020, Mitsubishi Materials Corp stated that it bought a stake worth 30% in the company for $236 million.[6] At present 70% of the shares in the mani are owned by Capstone Copper and the remaining 30% by Mitsubishi Minerals.[7]
On January 2, 2026 643 workers in the mine begun a strike citing a "lack of agreement" on a collective bargaining.[8][9]
See also
References
- ^"Iron oxide deposits in the world"(PDF). ethesis.helsinki.fi. 2012. Archived from the original(PDF) on 2011-04-09. Retrieved 2013-07-04.
- ^ abc"Capstone's 'fast follower' philosophy keeps bearing copper fruit". International Mining. 2025-01-28. Retrieved 2025-07-20.
- ^Chapple, Paula (2025-04-09). "Capstone Copper recibe el permiso para proyecto Mantoverde optimizado". Revista Nueva Minería y Energía (in Spanish). Retrieved 2025-07-21.
- ^Jamasmie, Cecilia (2021-11-30). "Capstone Mining, Mantos Copper to merge". mining.com. Retrieved 2025-07-20.
- ^"Santo Domingo Project, Chile". NS Energy. 2024-09-26. Retrieved 2025-07-21.
- ^"Japan's Mitsubishi Materials buys 30% stake in Chile copper mine". Reuters. 2020-02-07. Retrieved 2020-02-09.
- ^Guillou, Víctor (2024-11-26). "Camino a la gran minería: Capstone copper pone en marcha proyecto que extiende la vida útil de Mantoverde". La Tercera (in Spanish). Retrieved 2025-07-20.
- ^Cruz, Eva (2026-01-02). "Trabajadores de mina Mantoverde de Capstone Copper en Chile inician huelga". Rumbo Minero (in Spanish). Retrieved 2026-01-04.
- ^Attwood, James (2026-01-02). "Huelga en Mantoverde: mineros presionan en medio de precios récord del cobre". Bloomberg Linéa (in Spanish). Retrieved 2026-01-12.
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