SMM, April 30: electrolytic copper spot in North China today rose 170 yuan / ton to 230 yuan / ton for the current month's contract, and the transaction price was 43040 yuan / ton to 43200 yuan / ton. Shanghai copper jump high open rebound to 43000 yuan / ton, the last trading day before May Day, pre-holiday clearance in exchange for safe haven market subjective factors, local supply is abundant, high water quotation is difficult to maintain, smelters and traders take the initiative to reduce to close, the lowest price fell back to 43000 yuan / ton, the average price of discount water fell 20 yuan / ton compared with yesterday.
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