Indonesia is a major producer of copper, with the seventh-largest production in the world in 2023. Copper is one of Indonesia's main exports with smelting facilities being established in recent years. The largest copper mines in the country are the Grasberg mine in Central Papua and the Batu Hijau mine in Sumbawa, and the two mines contribute the vast majority of the national production. The mines have been accused of causing significant environmental impact through the dumping of tailings and of human rights violations against local communities.