The Coca Codo Sinclair Hydroelectric Power Plant, which would provide between 20% and 30% of electricity production, is one of the oldest, largest and most controversial Chinese projects in Latin America, marked by technical failures and corruption.
In January was the first summit of the presidents of Paraguay and Brazil to review the treaty. While Paraguay wants to increase the tariff searching for greater profitability, Brazil has stated its intention to lower it to reduce costs for Brazilian consumer.