China has discovered a major copper and gold deposit in the latest breakthrough in its hunt for metals vital to solar power, new-energy industries and data centre construction.The deposit was found in the central province of Anhui, China Central Television reported on Tuesday, with the main mineralised body about 1.2km long and 1.1km wide and deeper sections yet to be fully delineated.The Ministry of Natural Resources said preliminary estimates suggested the deposit contained the equivalent of...