London copper was almost unchanged on Monday as tensions between Washington and Beijing at a regional summit renewed concerns over a prolonged trade war, weighing on prices although the market was supported by tightening supplies. U.S.-China trade tensions were clearly on display at an Asia Pacific economic summit in Papua New Guinea over the weekend, where leaders failed to agree on a communique for the first time ever. COPPER: Three-month copper on the London Metal Exchange was almost flat at $6,203 a tonne, as of 0408 GMT, while the most-traded copper contract on the Shanghai Futures Exchange climbed 0.2 percent ... (full story)