Sumitomo Joins Copper-Gold Mining Project in Northern Chile
The investment adds a major Japanese industrial actor to a Latin American resource corridor that supplies copper critical to global electrification supply chains.
Japan's Sumitomo Corporation has entered a copper-gold mining project in Chile, according to a report published August 29, 2026 by Nikkei Asia. The move expands Japanese industrial presence in a country that, according to the United States Geological Survey, holds approximately 23 percent of the world's known copper reserves.
Chile is the world's single largest copper producer by volume, according to USGS data. Its northern Atacama region contains several of the highest-output copper and gold deposits on earth, including the Escondida mine, in which BHP holds a majority stake.
Sumitomo Corporation is one of Japan's largest general trading companies, with existing stakes in natural resource projects across Australia, Indonesia, and the Americas. The company's minerals and metals division has previously held interests in Chilean copper through the Morenci and Cerro Verde operations, according to Sumitomo's published corporate disclosures.
Nikkei Asia did not name the specific project Sumitomo is joining, the size of its equity stake, or the value of the investment in its August 29 report. The identity of the counterparty, the mine's location within Chile, and the terms of the agreement are not yet publicly disclosed. A full project description filed with Chile's mining regulator, the Comision Chilena del Cobre, or Cochilco, would normally contain those details once registered.
Copper prices have remained elevated through 2026. The London Metal Exchange copper spot price averaged above $9,800 per metric ton in the first half of the year, according to LME published data, driven by demand from electric vehicle battery systems, power grid infrastructure, and semiconductor manufacturing.
Japan has pursued a structured strategy of securing upstream resource access since the 2011 energy disruptions that followed the Fukushima nuclear incident. The Japanese government's Basic Resources and Energy Plan, updated in 2024 by the Ministry of Economy, Trade and Industry, identifies copper as a critical material for the country's decarbonization and industrial resilience targets.
Chile has attracted increased investment from Asian economies over the past decade. Chinese state-owned enterprises, South Korean firms, and Japanese trading houses have all expanded positions in Chilean lithium and copper assets, according to data compiled by Chile's Foreign Investment Promotion Agency, InvestChile.
The Chilean government under President Gabriel Boric has maintained a policy of increasing state participation in lithium while leaving copper largely open to foreign equity participation, according to statements by Chile's Ministry of Mining published in 2024. That policy distinction has kept copper projects more accessible to external investors than lithium projects.
Gold co-production from copper mines has increased in commercial significance as gold prices have risen. Gold traded above $3,100 per troy ounce on international markets in August 2026, according to the World Gold Council's published spot data, making combined copper-gold deposits more financially attractive than copper-only assets at comparable ore grades.
Sumitomo has not issued a standalone press release on the Chile project as of the publication date of this article. Additional detail on the project's timeline, production targets, and regulatory approvals would depend on filings with Cochilco and any disclosures made through the Tokyo Stock Exchange, where Sumitomo is listed.