World Metal Price (US$) Date Silver/Oz Zinc/Ton Aluminium/Ton Copper/Ton Platinum/Oz23-May 34.68 2132.70 2475.20 8955.07 1759.0024-May 35.16 2143.23 2475.20 8944.54 1756.0025-May 36.29 2197.44 2489.09 8994.05 1760.0026-May 38.66 2264.86 2545.31 9226.56 1782.0027-May 37.76 2278.75 2571.97 9248.29 1781.00Source:kitco.com
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