Hong Kong stocks in the non-ferrous metals sector strengthened, with Jiangxi Copper (00358.HK) rising more than 5%, and Lingbao Gold (03330.HK), Luoyang Molybdenum (03993.HK), Minmetals Resources (01208.HK), China Nonferrous Mining (01258.HK), Zijin Mining (02899.HK) and other stocks following suit.