- The company has indirect voting shareholding interest in Thanarad Thung Song Co., Ltd. via a subsidiary- Rajyindee Hospital Public Co., Ltd
- Weihai Thonburi Healthcare Investment Co., Ltd. is a joint venture of the Company. (Holds 58%of the share capital with WEGO Holding Co., Ltd. (holding 42%) by WEGO Holding Co., Ltd. established in China.
- Thonburi Wellbeing Co., Ltd. (Former name is Premiere Home Health Care Co., Ltd.)
- Other investments are investments in ordinary shares of the Company. Holds more than 10% as follows