• Shares of JCHX Mining Management climb 7.2% to 76.7 yuan, on track for their biggest one-day pct gain since July 22

• Stock touches the highest point since July 31, snapping two straight sessions of fall

• China-based mining services and mine resource development group says its Zambia unit wins copper mining contract valued at about $115 mln

• YTD, stock up 0.5%, benchmark CSI300 Index up 0.4%

(Reporting by Donny Kwok)