SHANGHAI, Dec. 7 (SMM) – Shanghai spot tin prices saw further losses on December 6th as weakness in demand lasted. Mainstream traded prices of Yunxiang, Nanshan, Kaiyuan and Lvsexinan branded tin were between RMB 161,500-162,000/mt. Yunheng and Yunxi branded tin mainly traded between RMB 164,500-165,000/mt. China tin prices dropped rapidly starting from last week and lost RMB 8,000/mt on a weekly basis as of Tuesday. Besides weak demand, goods movements at lower prices by both some smelters and traders were also causes of such rapid drop. At present the metal is expected to test support at the RMB 160,000/mt mark.