Top shareholders according to the share registration book closing on 30 December 2020 are as follows:

No. Major Shareholders # Shares % Shares
1. Ramkhamhaeng Hospital PCL. /1 145,971,739 17.192
2. Mrs. Charuwan Vanasin /2 110,889,119 13.060
3. Mr. Amnuay Unnanuntana, MD 43,882,670 5.168
4. Mr. Arsa Meksawan, PHD 29,794,737 3.509
5. Mrs. Nawara Vanasin /2 26,080,363 3.072
6. Mr. Aurchart Kanjanapitak, MD 18,259,500 2.151
7. Thai NVDR Company Limited 15,355,583 1.808
8. Global Health Investment Co., Ltd /2 /3 11,413,340 1.344
9. F&S 79 Co., Ltd. /1 8,695,656 1.024
10. Mr. Sita Meksawan 8,415,063 0.991
11. Mr. Aasis Unnanuntana, MD 6,859,100 0.808
12. WJ International Hospital Management Co., Ltd. /2 /4 6,541,305 0.770
13. Mr. Boon Vanasin, MD /2 5,801,848 0.683
14. Thonburi Healthcare Group PCL. /5 5,281,400 0.622

Noted:
/1 Ramkhamhaeng Hospital group, the major shareholders, consist of Ramkhamhaeng Hospital PCL. and F&S 79 Co., Ltd. Total 18.216%
/2 Mr. Boon Vanasin group, the major shareholders, consist of Mr.Boon Vanasin, Mrs.Charuwan Vanasin, Mrs. Nawara Vanasin, Ms.Nalin Vanasin (10,837 shares) Mr.Jon Vanasin (10,837 shares), WJ International Hospital Management Co., Ltd. and Global Health Investment Co., Ltd. Total 18.93%
/3 Global Health Investment Co., Ltd the company under to control by Vanasin's family that the major shareholders of the company located at Hongkong.
/4 WJ International Hospital Management Co., Ltd. Shareholders by Mr. Boon Vanasin 30% and Mrs.Charuwan Vanasin located at Hongkong.
/5 The Board of Directors' meeting approved the share repurchase program for financial management purposes on 3 April 2020 starting from 21 April 2020 to 20 September 2020.