SHANGHAI, Mar. 20 (SMM) – In the Shanghai physical lead market, goods from Chihong Zn & Ge traded on Thursday at RMB 13,720/mt, a discount of RMB 50/mt over the most active SHFE lead contract prices. Tongguan and Humon resources were sold at RMB 13,710/mt and RMB 13,670-13,680/mt, respectively. Lead smelters stepped up moving goods after spot lead prices were underpinned by a rise in SHFE lead prices, but there was still limited amount of lead warrant supply flowing in the physical market. Although downstream producers had significantly higher buying interest, tight lead supply in Shanghai restrained trading activity on Thursday.