Copper miners gain on US-China trade truce extension

** Shares of copper miners gain, tracking red metal prices

** Benchmark three-month copper CMCU3 on the London Metal Exchange up 0.7% at $9,800 a metric ton

** Copper prices rise as relief dominated the mood after the U.S. and China extended their tariff truce, while optimism was buoyed by a lower dollar after the release of U.S. inflation data

** U.S.-listed shares of global mining giants Rio Tinto RIO.N rise 1.4% and BHP Group BHP.N up ~1%

** Copper miners Southern Copper SCCO.N and Freeport-Mc-MoRan FCX.N rise 1.6% each

** Canadian miners: Hudbay Minerals HBM.TO up 2% and Teck Resources TECKb.TO rise marginally