SMM May 18: today, the spot price of electrolytic copper in Shanghai for that month's contract is 140 to 170 yuan / ton, the transaction price of flat copper is 43210 yuan / ton ~ 43300 yuan / ton, and the transaction price of copper is 43220 yuan / ton ~ 43310 yuan / ton. Shanghai copper morning market opened low and directly rose back to 43100 yuan / ton first-line shock, today to change the month to 2006 contract quotation, early trading inquiry is active, the holder quotes 150 ~ 170 yuan / ton, good copper can be a small amount to 150 yuan / ton, flat copper price down to 140 yuan / ton transaction is active, the trading atmosphere is slightly better than last Friday. In the second trading session, the supply of copper with low price and flat water has been difficult to find. The rising water of good copper is 160 yuan / ton to 170 yuan / ton, and the standing price of copper water in Pingshui is more than 150 yuan / ton, but the trading heat is not as hot as the morning market, and it is just needed downstream. Wet copper keeps rising water around 110 yuan / ton. Today, the market quotation is firm, the holder still intends to push up the water, the source of low-rising water is highly favored by the market, the transaction is mainly based on the receipt of goods by traders, and the trend of firm quotation will continue.