Paraná state court (Tribunal de Contas do Estado do Paraná), in Brazil, has finally approved the development of the Curitiba's first metro through a Public private partnership PPP contract.

The tender process was cancelled last August due to the fact that the Supervisory Board of Public Works pointed out irregularities in the announcement of the project. Additionally the guidelines for environmental licensing were made by a body without legal authority to do so.

The project has finally been approved because Paraná state court has determined that the tender documents can be adapted, and therefore the new tender documents are now in process to be developed.

The blue line metro will span 17.6 km  with 15 stations. The project involves the stretch between CIC-Sul and the Terminal do Cabral. The demand for the project was estimated at 419,000 passengers per day.

The total project investment is estimated at R$18 billion (US$6.84 billion).

The whole project is expected to be developed in five years but it can be operational when the first phase is completed.

The tender process for the project was issued in June, later it was relaunched in early July by the Paraná state capital Curitiba. Following a request by a bidder, Curitiba decided to change a contract clause, clarifying that remuneration will be made by the city to the selected concessionaire through an annual payment.