SHANGHAI, Oct. 21 (SMM) – Shanghai spot tin prices dropped further on October 20th following the plunge in LME tin prices. Yunheng, Yunxiang, Nanshan and Kaiyuan branded tin was mainly traded between RMB 177,500-179,000/mt. Small volumes of Yunxi branded tin was traded at RMB 182,500/mt. Market transactions were quite limited. Market players became pessimistic toward the metal amid continuously dropping prices and a bearish trend in the short term. Downstream demand remained weak, with downstream buyers only purchasing as needed.