Copper prices rose on Friday, as the US dollar fell against most of its peers, while risk assets continued to attract investors.
Copper was lifted by concerns about production disruptions in Chile after workers in one of biggest mines rejected the terms of their proposed work contracts, which might lead to their strike.
The dollar index fell against a basket of currencies by 0.4% to 93.2 points as of 15:12 GMT, after hitting a high of 93.5 and a low of 93.1.
Hopes were renewed about the possibility of a second Covid-19 aid package in the US, despite US President Trump's decision to stop the stimulus talks with Democrats.
Copper December futures rose 0.8% to $3.06 per pound as of 15:16 GMT, with a day high of $3.09 and a low of $3.03.