Contrary to what has been reported, Hydro Alunorte reiterates that its waste deposits are safe and, even with the intense rains in the Barcarena region, there was no leakage or rupture. The various technical inspections carried out in the area by the competent authorities - State Secretariat for the Environment and Sustainability (Semas), Municipal Secretariat for the Environment and Economic Development of Barcarena (Semade), Municipal Secretariat for the Environment of Abaetetuba (Semea), Civil Defense , Fire Department, Ibama, Evandro Chagas Institute and Renato Chaves Scientific Expertise Center - attested that there was no rupture of the deposits. The company remains open to collaborate with the authorities and is available to provide all the information requested, both to the competent inspection bodies and to the community and the press.

The company understands the concern of residents in the vicinity and competent authorities, due to the exceptional incidence of rain (more than 200 mm recorded in a 12-hour period) in the region, between the 16th and 17th of February, which caused flooding in several points of Barcarena, including communities close to the Hydro Alunorte refinery. The disclosure of images of these floods associated with the company's rumor about the company's waste deposit caused concern in the region's residents and the legitimate search by environmental authorities to clarify what actually happened. On the streets of the refinery, rain also brought flooding in some places, as was observed in technical surveys, but in no way were the structures of the solid waste deposits compromised or presented any risk of breakage or overflow.

Hydro Alunorte also informs that its deposit receives the practically dry bauxite residues to be stored in the area. The soil of the deposits is waterproofed with special material to prevent infiltration and environmental damage. The entire area has a drainage system that conducts water to the refinery's Industrial Effluent Treatment Stations, where it is treated before being sent to the Pará River. The operation follows the resolutions of the National Environment Council and is also regularly monitored by the company and reported to the environmental agency that oversees this action.

The company reinforces that it carries out regular monitoring and management, with daily, weekly and monthly inspections, in all its structures, including waste storage equipment, water treatment in the industrial plant and atmospheric emissions, in accordance with the environmental licensing requirements of the enterprise.