Dr Ng made significant contributions to the development of Hong Kong's manufacturing industry through his active participations in the areas of vocational training, industrial & technology development, quality & system certification and occupational health & safety. He made enormous contributions to his alma mater as well. He was Deputy Chairman of PolyU Council and President of Federation of PolyU Alumni Associations. Dr Ng was member of various government committees including Chairman of Employee Retraining Board and Chairman of Automotive Parts & Accessory Systems R&D Centre.