In 2011, HIDROITUANGO S.A. signed a BOOMT contract with EPM for the construction and operation of the plant, giving it autonomy in contracting decisions. In 2023, EPM changed the project's contractors, a decision against which HIDROITUANGO S.A. issued formal alerts for possible delays. These communications are input to the Antioquia Comptroller's Office's investigation into the impact of the change in contractors.

That in 2011 it concluded a contract with Empresas Públicas de Medellín — EPM under the BOOMT modality, through which the company undertook to build, operate, own and maintain the hydroelectric plant and, at the end of the contract in 2061, transfer it back to the Company.
The contract states that EPM, in its capacity as contractor, has full autonomy to adopt at its own risk the contracting decisions it deems necessary for the construction and operation of the project.
During the administration of Mayor Quintero, who also held the Presidency of the EPM Board of Directors, in 2023 that company decided autonomously and in accordance with its internal selection procedures, not to continue with the initial contractors who had been carrying out the construction phase since 2011, and changed them.
Once the company HIDROITUANGO S.A. became aware, in 2023, of EPM's intention to replace the project's contractors, issued the alerts in a timely manner and expressed in an express and documented manner, through formal communications addressed to the contracting company, its concerns about that decision, among others, about the delays it could cause in the work.
Communications sent by HIDROITUANGO S.A.. EPM on this matter constitute a relevant input to the investigation announced by the Office of the Comptroller General of Antioquia, on how the process took place in the change of contractor and the consequences it generated for the project, as a result of an EPM decision in the administration of former mayor Quintero.