Donggua Mine is large modernized copper mine which has been constructed recently. The components of ore is very complex for dressing with high sulphur.

• 冬瓜山铜矿系新建大型现代化铜矿山,矿石属高硫难选矿石,矿物组成复杂,是目前发现的最难处理的含铜矿石类型之一。