SHANGHAI, Jun. 23 (SMM) –In Shanghai spot tin market, mainstream traded prices followed SHFE tin up to RMB 112,500-114,500/mt on June 19. Many producers and traders held back goods in hope of even higher prices. Downstream producers held to the sidelines, leaving trading modest. Goods from Yunnan Tin Group traded at RMB 113,500-114,500/mt.