** ASX-listed shares of copper miners plunge to be among top percent losers in the Australian benchmark index .AXJO as copper prices weaken on U.S.-China trade tensions MET/L
** ASX shares of Capstone CopperCSC.AX CS.TO fall as much as 6.8% to A$13.48, their biggest intraday pct loss since April 11
** Shares of Sandfire Resources SFR.AX fall as much as 1.1% to A$15.97
** Local mining sub-index .AXMM up 0.7%
** YTD, CSC up 39.6%, SFR up 72.5%
(Reporting by Nichiket Sunil in Bengaluru)
((Nichiket.Sunil@thomsonreuters.com))