Other industrial metals also jumped, with aluminium at its highest since 2018, nickel its strongest since 2014, tin its strongest since 2012 and lead its highest since 2019.
Benchmark copper on the London Metal Exchange (LME) was up 2.9% at $8,631 a tonne in official trading after touching $8,633. Prices are up around 10% this month.
Benchmark copper slipped 0.4% to $8,251 a tonne in official trading after touching an eight-year peak on Thursday, having surged nearly 90% since March last year.
There was some last-minute restocking by the Chinese ahead of their holiday, so when they come back they'll be able to gear up pretty quickly.
Benchmark copper was down 0.4% at $8,248.50 a tonne by 1140 GMT after touching an eight-year peak on Thursday, having surged nearly 90% since March last year.
There was some last-minute restocking by the Chinese ahead of their holiday, so when they come back they'll be able to gear up pretty quickly.
"Inventories are still quite low on exchanges. That gives good indication that manufacturing demand for copper is present and that its not just a speculative story,".