BASE METALS (London Metal Exchange -- Midday official cash/3-month prices, US$ per tonne)DateMay 23May 20May 19May 18May 17Al Alloy1535/15451540/15461550/15601544/15501540/1541Aluminum1710/1716.501738/1742.501734/17401728/17371728/1736.50Copper3165/30083195/30483186.50/30523169/3025.503113/2992.50Lead1000.50/9591003/961994.50/951.50982/942970/933Nickel16700/1595516745/1610016200/1605016650/1590017100/16200Tin8050/80208075/80308175/80708110/80308100/8050Zinc1230/1234.501235.50/12391239/12411230/12381225.50/1234.50PRECIOUS METAL PRICES (London fix, US$ per troy oz.)DateMay 23May 20May 19May 18May 17Gold AM417.60420.70421.75419.40420.35Gold PM418.00418.00420.80419.75420.00Silver6.98007.10007.18007.02006.9700Platinum863.00863.00866.00860.00856.00Palladium187.00187.00190.50190.00187.00
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