List of the Company's 12 main shareholders as of December 31, 2025:

Shareholder Name

Number of shares

% Ownership share

Enel SpA (1)

44,907,055,101

64.93%

CITIBANK N.A. SEGUN CIRCULAR 1375 S.V.S.                   

2,746,323,523

3.97%

BANCO DE CHILE POR CUENTA DE STATE STREET                  

2,745,458,689

3.97%

BANCO SANTANDER POR CUENTA DE INV EXTRANJEROS              

2,101,738,996

3.04%

BANCO DE CHILE POR CUENTA DE TERCEROS NO RESIDENTES        

1,419,962,396

2.05%

AFP HABITAT S A PARA FDO PENSION C                         

1,212,428,332

1.75%

BANCO DE CHILE POR CUENTA DE CITI NA NEW YORK CLIE         

828,354,685

1.20%

LARRAIN VIAL S A  CORREDORA DE BOLSA                       

827,694,463

1.20%

BANCO SANTANDER CHILE                                      

785,684,094

1.14%

AFP PROVIDA S.A. PARA FDO. PENSION C                       

701,887,835

1.01%

AFP CUPRUM S A  PARA FDO  PENSION C                        

651,577,895

0.94%

AFP CAPITAL S A  FONDO DE PENSION TIPO C                   

644,334,873

0.93%

Subtotal 12 main shareholders

59,572,500,882

86.13%

Other 5,776 shareholders (2)

9,594,056,337

13.87%

Total 5,788 shareholders

69,166,557,219

100%

(1) Enel SpA's stake in Enel Chile S.A. considers 11,457,799 ADSs or the equivalent of 572,889,950 shares.
(2) There are no shareholders that belong to the founding families of the Company, as well as no government or state entities that hold shares of the Company that exceed 5% of its ownership.