London copper prices inched up on Thursday amid a weakening US dollar, while the market focus remained on a series of trade talks between the US and its major trading partners. Three-month copper on the London Metal Exchange gained 0.31% to $9,651 per metric ton, as of 0102 GMT, and the most-traded copper contract on the Shanghai Futures Exchange stayed largely steady at 78,190 yuan ($10,890.43). The dollar index remained near six-week lows on weak US economic data, making dollar-denominated assets less expensive for holders of other currencies. On the trade front, US President Donald Trump called his Chinese ... (full story)