SHANGHAI, Aug. 18 (SMM)--Domestic Chihong Zn & Ge brand was earlier quoted at RMB 16,200/mt, with discounts of negative RMB 420-470/mt against SHFE 1110 lead contract prices. Since SHFE lead prices surged by RMB 100/mt as of 10：30, prices of Chihong Zn & Ge were then raised to RMB 16,300/mt, with discounts remaining unchanged. Other brands such as Jinguan were generally quoted at RMB 16,150/mt. Traders were more active due to optimistic speculation, causing transactions to improve.