SMM May 13: Shanghai electrolytic copper spot to the current month contract discount 20 yuan / ton ~ flat water, flat water copper transaction price 43020 yuan / ton ~ 43130 yuan / ton, Shengshui copper transaction price 43030 yuan / ton ~ 43140 yuan / ton. Shanghai copper callback collated in 43000 yuan / ton, a decline of more than 500yuan / ton, the monthly price difference narrowed to about 200yuan / ton compared with yesterday, the morning market holder immediately reported discount water 20 yuan / ton ~ flat water, good copper flat water near, Pingshui copper discount 20 yuan / ton, the disk fell to 43000 yuan / near, the willingness to receive goods at low prices increased significantly, Pingshui copper can be moved up to 10 yuan / ton, the popularity of good copper is not as good as flat copper, basically stable in the flat water line. The quotation is limited, and the wet copper quotation fluctuates in the narrow range of 60 ~ 50 yuan / ton today. Today, the monthly difference has narrowed significantly, the willingness of holders to sell has weakened, the discount has narrowed rapidly, approaching delivery, the activity of traders has increased, copper futures have also attracted downstream bargain replenishment after falling, and transactions today continue to show a gradual improvement over the previous two days. As the position of the current month contract gradually returns to the safe range, the reduction range of the month after the week will gradually narrow, the price difference between months will gradually narrow, and the large discount state under the disk will no longer exist.