SMM, May 7: the current contract of electrolytic copper in North China today rose by 200 yuan / ton to 250 yuan / ton, with a transaction price of 43060 yuan / ton to 43230 yuan / ton. Copper price rebounded again 43000 yuan / ton gate finishing, smelter is still around 300 yuan / ton, but it is difficult to close, trade quotation 200 ~ 280 yuan / ton, but there are low prices, downstream continue to maintain just needed, the market transaction is weak.