币界网报道:[Hong Kong-listed Kingkey Financial International opened higher, up more than 14%] According to market data on July 3, Hong Kong-listed Kingkey Financial International (HK1468) opened higher by more than 14%, with a market value of HK$478 million. Yesterday, Kingkey Financial International announced that it would spend US$12 million to subscribe to Amber International shares and enter the field of institutional encryption services.