Mainland China’s gold imports from Hong Kong surged more than sixfold in the first quarter, adding to signs that the country may displace India as the world’s largest consumer of the precious metal on an annual basis.Imports from Hong Kong were 135,529 kilograms (135.53 metric tons) between January and March, from 19,729 kilograms in the year-earlier period, according to data from the Census and Statistics Department of the Hong Kong government. Shipments in March rose 59 percent from February, yesterday’s data showed. LINK...