MiningMining> Data Center> Copper Ore> Output> Copper Concentrate Output> Output of Copper Concentrate in the World (Y)
- Output of Copper Concentrate in the World in 1992Jan 15, 1993
- Output of Copper Concentrate in the World in 1991Jan 15, 1992
- Output of Copper Concentrate in the World in 1990Jan 15, 1991