SHANGHAI, May 6 (SMM) –In Shanghai spot tin market, supply was limited and some speculators entered the market to stockpile goods for hedging on the SHFE. This helped mainstream traded prices rise to RMB 116,000-117,500/mt on Tuesday. Goods from Yunnan Tin Group traded at RMB 117,500/mt. However, buying cooled after SHFE 1507 tin contract dived.