The Company's twelve largest shareholders as of December 31, 2019:
| Name | Number of Shares | Shares % |
| Enel Chile S.A. (1) | 7,672,584,961 | 93.55% |
| Larraín Vial Corredores De Bolsa S.A. | 76,824,688 | 0.94% |
| Banchile Corredores de Bolsa S.A. | 27,356,234 | 0.33% |
| Citibank N.A. Según circular 1375 C.M.F | 27,039,390 | 0.33% |
| Banco de Chile por cuenta de Citi Na Hong Kong Cli | 12,331,949 | 0.15% |
| MBI Corredores de Bolsa S.A. | 11,732,928 | 0.14% |
| Banco de Chile por cuenta de Citi Na New York Clie | 11,584,000 | 0.14% |
| EMF Retorno Absoluto FIP | 10,178,975 | 0.12% |
| Santander Corredores de Bolsa Limitada | 10,064,133 | 0.12% |
| Fondo de Inversión Privado MBI Renta Fija Plus | 9,999,620 | 0.12% |
| Banco Santander por cuenta de Inv. Extranjeros | 9,570,327 | 0.12% |
| Inversiones Orrego S.A. | 9,286,405 | 0.11% |
| Subtotal 12 shareholders | 7,888,553,610 | |
| Otros | 313,200,970 | 3.82% |
| TOTAL | 8,201,754,580 | 100.00% |
(1) Enel Chile S.A. is controlled directly by Enel SpA., holding 61.93% of ownership.