Over the past few years, the OEC has changed its corporate structure according to the volume and distribution of its operations in the countries.
The consolidating companies over the periods are listed below:

OEC S.A. (as of 07/31/2021) – due to the restructuring of the Bonds
Odebrecht Engenharia e Construção S.A. – 2016 to 07/30/2020
CNO (Construtora Norberto Odebrecht) S.A. – Until 2015.

Access the financial statements here.