Top shareholders according to the share registration book closing on 15 March 2021 are as follows:

No. Major Shareholders # Shares % Shares
1. Ramkhamhaeng Hospital Public Company Limited 145,971,739 17.19
2. Mrs. Charuwan Vanasin 118,489,119 13.96
3. Dr. Amnuay Unnanuntana 43,882,670 5.17
4. Mr. Arsa Meksawan, PHD 29,794,737 3.51
5. Mrs. Nawara Vanasin 28,720,363 3.38
6. Mr. Aurchart Kanjanapitak, MD 18,259,500 2.15
7. Thai NVDR Company Limited 15,147,902 1.78
8. Global Health Investment Co., Ltd 11,413,340 1.34
9. F&S 79 Co., Ltd. 8,695,656 1.02
10. Mr. Sita Meksawan 8,415,063 0.99