Aluminium set for best week in three decades as supply woes mount

Aluminium prices are heading for the best week in at least three decades as US sanctions on Russian producer United Co. Rusal send buyers scrambling to find supplies. Prices of the metal climbed to the highest since 2012 Thursday, helping push this week’s gain to almost 14%, the most in Bloomberg records going back to June 1987. The US premium, or the amount added to the London Metal Exchange price of aluminium to ship metal to the Midwest, jumped by the most on record.