Li Ka-shing in Hong Kong on May 10, 2018, on the official day of his retirement. (File photo: AFP/ANTHONY WALLACE) Li Ka-shing has earned a fortune in plastics, logistics and oil during his career. Now the billionaire and his family are increasingly betting on renewable energy. CK Infrastructure Holdings, a shareholder in gas and electricity businesses run by Li’s eldest son Victor, invested recently in the hydrogen private equity fund HYCAP, according to a statement from the Hong Kong-based company sent to Bloomberg News.