Shanghai copper price registered a second consecutive month of gains on Monday as prices firmed on a potential supply threat in Chile and massive US infrastructure spending plans.
The most-traded July copper contract on the Shanghai Futures Exchange closed 0.9% up at 73,950 yuan ($11,617.68) a tonne for a 2.1% monthly gain.
Copper for delivery in July was down 0.2% at $4.6705 ($10,275 per tonne) on Monday on the Comex market in New York.
A strike by a union of remote operations workers hit BHP鈥檚 Escondida and Spence copper mines in Chile last week, with the company using replacement workers to ensure continued production.
Chile鈥檚 manufacturing output ticked up 5.9% year-on-year in April, government statistics agency INE said on Monday, while聽copper聽output dipped 1.5%, to 467,594 tonnes.