World Metal Price (US$) Date Silver/Oz Zinc/Ton Aluminium/Ton Copper/Ton Platinum/Oz20-December 29.32 2311.68 2351.55 9357.38 1711.0021-December 29.31 2328.03 2363.42 9405.98 1709.0022-December 29.36 2328.26 2328.26 9512.16 1727.0023-Dcember 29.33 2336.99 2440.03 9485.73 1727.0024-December 29.29 2330.72 2341.47 9529.63 1731.00Source:kitco.com
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