5. Silungkang, West Sumatra
Sumatra is also one of the largest copper-producing regions in Indonesia.
Copper smelters in West Sumatra are located in several areas, such as Lunto and Silungkang.
The Silungkang mine itself can produce approximately 419,600 tons of copper annually, covering a mining area of over 3,102 hectares.
Sheila Silvina