The major shareholders as of 14 December 2017
| Name | No. of shares | % | |
| 1. | MINISTRY OF FINANCE | 10,000,000,000 | 70.00 |
| 2. | THAI NVDR COMPANY LIMITED | 611,351,816 | 4.28 |
| 3. | SOUTH EAST ASIA UK (TYPE C) NOMINEES LIMITED | 405,711,990 | 2.84 |
| 4. | STATE STREET EUROPE LIMITED | 283,376,044 | 1.98 |
| 5. | SOCIAL SECURITY OFFICE | 161,239,300 | 1.13 |
| 6. | CHASE NOMINEES LIMITED | 128,428,723 | 0.90 |
| 7. | BNY MELLON NOMINEES LIMITED | 79,255,848 | 0.55 |
| 8. | HSBC (SINGAPORE) NOMINEES PTE LTD | 75,276,029 | 0.53 |
| 9. | THE BANK OF NEW YORK MELLON | 73,428,727 | 0.51 |