World Metal Price (US$) Date Sliver/Oz Zinc/Ton Aluminum/Tom Copper/Ton Platinum/Oz 28- May 28.58 1930.66 2005.92 7899.14 1436.00 29- May 28.60 1932.45 2006.82 7880.99 1435.00 30- May 27.68 1920.35 1995.39 7770.34 1413.00 31- May 27.95 1905.34 1988.90 7608.61 1400.00 1-June 27.73 1908.70 1976.80 7598.53 1397.00
Background