Three-month copper futures on the London Metal Exchange (LME) decreased by 0.6% to $8,299.50/tonne. On the Shanghai Futures Exchange, the October copper futures contract decreased by 0.2% to 68,650 yuan/tonne ($9,403.59).
The dollar index hit its highest level since March 9 after the US Federal Reserve decided to further tighten its tight monetary policy.
Lead stocks on the LME increased to 73,875 tonnes, easing tightness in the lead market as a $1 premium was added to prices traded at $63 on 5 September in cash-quarterly deals.
In addition, copper stocks on the LME reached 155,700 tonnes, the highest level since May 2022, pushing copper prices down.
Nickel decreased by 0.9%, zinc by 1.4%, lead by 0.5%, aluminium by 0.5% and tin by 0.3% on the LME. This decrease in metal prices was due to the strengthening of the US dollar and the increase in stocks in global markets.