Goldcorp is to acquire Andean Resources for $3.4bn, beating a rival offer from Canadian miner Eldorado Gold Corp.
Yanzhou Coal Mining Company has said it will acquire a 51% stake in Haosheng Coal Mine for a total consideration of $980m.
Yanzhou Coal will also buy a 5.51% stake from Shanghai Huayi, 23.08% from Jinchengtai and a 12.41% equity stake from Jiutai Technology.
China Gold International said it would acquire Skyland Mining, which owns the Jiama copper mine in Tibet, in an all-stock deal valued at $742.3m.
Stillwater Mining, the only US producer of platinum-group metals, said it would acquire Marathon PGM Corp to gain a Canadian project.
The total consideration of the transaction is $118m.
The deal will increase Stillwater's annual platinum and palladium production by 40% within three years after gaining assets.
Novadx has signed an agreement to acquire mineral rights of an 18,000-acre, metallurgical coal prospect that is estimated to produce 172 million tons a year.
China's Zijin Mining said it had terminated a plan to acquire Congolese copper miner Platmin Congo after the agreement expires.