** ASX shares of copper miners soar as copper prices rose on hopes of easing U.S.-China trade tensions, upbeat China data MET/L
** Sandfire Resources SFR.AX rises as much as 4.2% to A$16.32; marks biggest intraday pct gain since October 9
** ASX shares of Capstone Copper CSC.AX gains as much as 7.1% to A$14.98, highest since October 9
** Meanwhile, benchmark S&P/ASX 200 .AXJO down 0.1%
(Reporting by Nichiket Sunl in Bengaluru)
((Nichiket.Sunil@thomsonreuters.com))