SMM Yangshan Copper Premiums and Import Profit/Loss
SMM Yangshan Copper Premiums (warrants) and Import Profit/Loss serves as the indicator for domestic copper cathode supply-demand balance. In the case oversupply in China, SHFE copper will underperform LME copper, and import loss will expand in this scenario which later suppresses import demand. As such, Yangshan copper premiums drop, and vice versa.