SMM May 19th: today, the spot price of electrolytic copper in North China is quoted at a price of 43920 yuan / ton to 44120 yuan / ton for that month's contract with a price of RMB170L / t ~ RMB230L / t. Early trading in Shanghai copper opened high to 44000 yuan / ton, smelters and traders are still quoting more than 200 yuan / ton, but copper prices rose sharply to restrain downstream consumption, downstream purchases need to reduce the price transaction space, the transaction price is mainly rising water 170 ~ rising water 200 yuan / ton, copper prices are relatively light in the high market.