The Company's twelve largest shareholders as of December 31, 2020:
| Name | Number of Shares | Shares % |
| Enel Chile S.A. (1) | 7,672,584,961 | 93.55% |
| Larraín Vial Corredores De Bolsa | 73,507,056 | 0.90% |
| Banchile Corredores de Bolsa S.A. | 32,447,821 | 0.40% |
| Banco de Chile por cuenta de Citi Na New York | 18,943,000 | 0.23% |
| Banco de Chile por cuenta de Citi Na Hong Kong Cli | 16,964,419 | 0.21% |
| MBI Arbitrage Fondo de Inversion | 14,855,062 | 0.18% |
| EMF Retorno Absoluto FIP | 14,614,923 | 0.18% |
| BCI C de B S.A. | 12,607,060 | 0.15% |
| MBI Corredores de Bolsa S.A. | 11,016,061 | 0.13% |
| Santander Corredores de Bolsa Limitada | 10,920,671 | 0.13% |
| Inversiones Orengo S.A. | 9,286,405 | 0.11% |
| BTG Pactual Chile S.A. C de B | 7,763,180 | 0.09% |
| Subtotal 12 shareholders | 7,895,510,619 | |
| Otros (13,676 shareholders) | 306,243,961 | 3.82% |
| TOTAL | 8,201,754,580 | 100.00% |
(1) Enel Chile S.A. is controlled directly by Enel SpA., holding 64.93% of ownership.