World Metal Price (US$)Date Silver/Oz Zinc/Ton Aluminium/Ton Copper/Ton Platinum/Oz19-April 43.22 2360.96 2730.34 9534.34 1767.0020-April 44.79 2381.79 2716.00 9700.10 1799.0021-April 45.85 2386.05 2722.94 9697.18 1803.0022-April 46.62 2387.62 2732.35 9806.94 1815.00Source:kitco.com
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