The Castilla project was initiated by MPX/E.ON, a joint Brazilian-German venture aiming to construct one of the biggest and most polluting thermal power stations in Latin America. The project also involves the development of an associated port to supply fuel (coal and diesel) for the operation of the thermal power station. Planned for northern Chile, the plant aimed to supply energy mainly to the mining industry. Both projects requested environmental permits separately and several irregularities and pressures from the government in the approval process of the Environmental Impact Assessment (EIA) of the projects were denounced. Local farmers, fishermen, EJOs and congressmen actively opposed the project because of the negative impacts it would bring for health and the environment. Legal measures were undertaken and the Supreme Court unanimously ruled against the Castilla project, stating the port and the thermal power plant needed to be evaluated together, and reaffirming the constitutional right to live in an environment free of pollution.