World Metal Price (US$)Date Silver/Oz Zinc/Ton Aluminium/Ton Copper/Ton Platinum/Oz9-May 35.86 2167.87 2613.63 8986.66 1798.0010-May 37.87 2189.15 2605.34 9014.88 1793.0011-May 39.06 2168.77 2636.26 8948.58 1800.0012-May 33.75 2134.05 2565.70 8674.62 1857.0013-May 35.24 2187.36 2620.58 8960.00 1771.00Source:kitco.com
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