Shanghai base metals were mostly higher on Wednesday morning as global markets attempted to break out from the gloomy sentiment seen at the start of the trading week. Meanwhile, their counterparts on the LME also rose for the most part. SHANGHAI, May 19 (SMM) — Shanghai base metals were mostly higher on Wednesday morning as global markets attempted to break out from the gloomy sentiment seen at the start of the trading week. Meanwhile, their counterparts on the LME also rose for the most part. Shanghai base metals mostly advanced in overnight trading. Lead increased 1.34%, tin rose 0.76%, nickel went up 0.2% and zinc strengthened 0.43%, while copper slid 0.42% and aluminium weakened 0.73%.