Zhongjin Gold said reserve-verification exploration at Hubei Jilongshan Gold Mining Co. began on Aug. 10, moving the project into substantive construction. The four-month survey includes a core drilling programme to complete 32 holes totalling 11,000m within two months. Preliminary estimates indicate the project could add about 2.4 mln t of ore, 2 t of gold and 4,500 t of copper.