SMM4, March 21: Guangdong electrolytic copper spot contract for the current month, the average price rose 15%; wet copper rose 160% to 170%, the average price rose 10%. The average price of electrolytic copper fell 430 yuan / ton to 42170 yuan / ton, and the average price of wet copper fell 435 yuan / ton to 42125 yuan / ton. In the spot market, although inventories have increased, the market shortage has not changed significantly, especially flat copper is still difficult to obtain, a small amount of 200 yuan / ton of flat copper flowed out in early trading but was soon swept away, and then the price of flat copper rose to 220 yuan / ton. On the contrary, a large number of thick plates continued to flow into the market today, and the supply of good copper exceeded demand, and the price fell all the way down from 220 yuan / ton in early trading to 200 yuan / ton. Wet copper supplies continue to be tight compared with yesterday's small increase of 10 yuan / ton to 170 yuan / ton. Overall, today's Guangdong electric copper market trading is OK, to low-price warehouse receipts good copper transaction, Pingshui copper price high goods less trading in general.