SMM May 27th: today, the spot price of electrolytic copper in North China is quoted at 150 yuan / ton ~ 210 yuan / ton for that month's contract, with a transaction price of 43990 yuan / ton ~ 44210 yuan / ton. The rebound of copper in Shanghai was blocked at the 44000 yuan / ton barrier, and there was a trading deviation at the end of the month, and the smelter offered the price voluntarily. If the purchase volume in the lower reaches was large, there was room for price reduction. The market transaction was as low as 150 yuan / ton, and the spot rising water deadlock fell after two days. The average price of rising water was 15 yuan / ton lower than yesterday.