Copper miners gain as red metal prices edge up on supply fears

** U.S.-listed shares of copper miners rise premarket, tracking prices of the red metal

** Benchmark three-month copper CMCU3 on the London Metal Exchange up 1% at $9,722.50 a metric ton, building on Friday's modest gains

** Copper prices rose on supply fears after a fatal mining collapse in Chile, the world's biggest producer, but gains were capped by concerns over the global economy

** Chilean copper giant Codelco halted mining at its El Teniente mine last week after a tremor and collapse that killed six workers

** Global mining giants Rio Tinto RIO.N and BHP Group BHP.N each up marginally

** Copper miners Southern Copper SCCO.N up 1.3% and Freeport-McMoRan FCX.N up ~1%

** Canadian miners Hudbay Minerals HBM.TO, HBM.N up marginally and Ero Copper ERO.TO, ERO.N up 2.8%