Shanghai Futures Exchange copper edged up 0.4 percent to 37,400 yuan ($5,608) a tonne on Tuesday and ShFE zinc rallied as much as 1.5 percent after finding support from data that showed a drop in mine supply. "Copper is being driven more by the global macro at the minute, particularly the USD, while the other metals are beating their own drums. Its fundamentals are not too bad," said analyst Daniel Hynes of ANZ in Sydney. "It's surprising how little the market has reacted to the potential disruptions given nickel is already in a decent deficit," ANZ's Hynes added.