1. Thiensurat Public Company Limited
2. Mazuma Thailand Co. Ltd.
3. Function International Public Company Limited
4. Coway (Thailand) Co. Ltd.
5. By Cleansui Co. Ltd.
6. Smart Electrical Supplies Co. Ltd. (Clarte)
7. Filter Mart Company Limited
8. Panasonic Management (Thailand) Co. Ltd.
9. Aquacheme Co. Ltd
10. Filter Vision Public Company Limited
11. Amway Thailand Ltd.