SMM7 March 30: Guangdong zinc mainstream trading at 18680-18870 yuan / ton, the price concentrated on the Shanghai zinc 2009 contract discount of 30-45 yuan / ton, Guangdong than the Shanghai market discount of 110yuan / ton than the previous trading day increased by 10 yuan / ton. The first trading session, zinc home high strong shock, downstream procurement demand is even worse, holders continue to lower rising water prices, it is still difficult to boost downstream transactions, Kirin, Mengzi, Huize, Tiefeng quotes for Shanghai zinc September contract discount 30-40 yuan / ton. In the second trading session, the center of gravity of futures prices moved further upward, downstream demand still did not improve, traders were relatively positive in receiving goods at discounts, and most of the market transactions were contributed by traders. Kirin, Mengzi, Huize and Tiefeng offer a discount of 40-45 yuan per ton for the September contract of Shanghai zinc. Kirin, Mengzi, Huize mainstream transactions at 18680-18870 yuan / ton.