King Tontown Medical Instruments Group Co., Ltd., (including the former Macao King Tontown Medical Instruments Company and Hongkong-Macao Bioengineering Company), is a transnational group having its headquarter in Toronto, Canada, the headquarters of Asian Pacific region and China in Macao and Zhuhai respectively, and research and development center was also established in Zhuhai City. This company is a standing member of China Council for Industry and Commerce, unit member of China Association for Medical Device Industry and a member of Gerontological Society of China (GSC).