Among all registered brands, only the following five brands enjoy premium: Guiye brand of Jiangxi Copper, Tongguan brand of Tongling, Tiefeng brand of Yunnan Copper, Golden Dolphin brand of Jinlong Copper and Ding Tong brand of Zhangjiagang United Copper, among which the first four brands have been registered in LME.
High-purity cathode copper refers to electrolytic copper with a purity of 99.9935% which meets the national standard GB/T467- 1997. Standard cathode copper refers to electrolytic copper that meets the national standard GB/T467- 1997, and the content of copper plus silver is not less than 99.95%.
Pingshui copper: other domestic brands and imported LME registered copper are delivered according to the standard level, and they do not enjoy the premium, so they are used to being called Pingshui copper.
Wet copper: Copper produced by hydrometallurgy is called electrodeposited copper, commonly known as "wet copper". In the production process, the anode is insoluble, the hydrometallurgical process is unstable, and impurities such as iron and arsenic are easily contained. The price of wet copper is generally cheaper.