SMM, April 27: the current contract of electrolytic copper in North China today rose 250 yuan / ton to 340 yuan / ton, with a transaction price of 42800 yuan / ton to 43190 yuan / ton. Shanghai copper jump high open all the way higher, the disk higher to restrain the downstream buying mood, but the overall willingness of the market to rise unchanged, Pingshui copper remained at a high level of 300 yuan / ton; in addition, recently there is a wet copper supply into the local (Shanghai to Tianjin) quoted water 200 yuan / ton near, a small amount of wet copper to supplement the local supply, alleviating part of the spot pressure.