Wong also served as independent director of various business, including MGM China, New Times Energy, Sino Hotels, and Sun Hung Kai & Company, as well as chairman of several firms, among them MK Corporation, North West Development, Culture Resources Development, Silk Road Hotel Management, and Silk Road Travel Management.
Dia juga menjabat sebagai direktur independen dari berbagai bisnis, termasuk MGM China, New Times Energy, Sino Hotels, dan Sun Hung Kai & Company, serta ketua dari beberapa perusahaan, di antaranya MK Corporation, North West Development, Culture Resources Development, Silk Road Hotel Management, dan Silk Road Travel Management.