London copper rose by 0.5% while falling by about 2% this week, and the European Union's export tax plan boosted London aluminum prices.

LME copper futures rose by 0.5%, to $13,345.50 per ton, dropping to $13,083 at one point, with a potential cumulative drop of about 1.8% for the week, marking the worst weekly performance since May 1st. Shanghai Futures Exchange copper stocks fell by 5.7% from the previous week to 135,732 tons, hitting a new low since December; LME copper stocks dropped to 336,475 tons, the lowest since March 18th. LME aluminum futures rose by 0.8%, to $3,189 per ton, as per the Financial Times, the EU plans to implement a 15% export tax starting in September. LME zinc futures rose by 1.4%, to $3,483 per ton. LME lead futures fell by 0.5%, to $1,902 per ton. LME nickel futures fell by 0.3%, to $16,780 per ton. LME tin futures rose by 0.9%, to $50,875 per ton.