Commodity rout: Precious metals – Gold, Silver, Platinum have cracked up to 47.5%; base metals – aluminium, copper, zinc, lead and nickel – plunged up to 18% in global markets from January 29 highs.Commodity rout: Precious metals – Gold, Silver, Platinum have cracked up to 47.5%; base metals – aluminium, copper, zinc, lead and nickel – plunged up to 18% in global markets from January 29 highs. Latest News [ SOBAN NEWS: International and National ]