World Metal Price (US$) Date Sliver/Oz Zinc/Ton Aluminum/Tom Copper/Ton Platinum/Oz 2- April 32.31 2028.99 2113.44 8762.43 1634.00 3- April 33.03 2037.28 2116.80 8831.42 1661.00 4- April 32.37 2016.45 2094.85 8644.16 1636.00 5- April 31.59 2020.70 2082.08 8512.67 1602.00
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