The  Brazil's national transport agency ANTT has released information defining public entities interested in investing and financing the Rio-São Paulo-Campinas high speed train project.

Accordin to the ANTT, the interested parties are banks (federal savings bank Caixa Econômica Federal; BNDESPar, the investment arm of BNDES; and BB Investimentos, the investment banking unit of Banco do Brasil), pension funds (Funcef and Petros), and the country's postal service (Correios).

Numerous companies have shown interest in the project: Siemens, Alstom, Bombardier, CAF, Hitachi, Mitsubishi, Toshiba and Mitsui, Hyundai and Samsung,  Bechtel.

The deadline to submit proposals is August 16th and bids will be opened on São Paulo's Bovespa stock exchange on September 19.

The 511km high speed train project between Rio de Janeiro and Sao Paulo has an estimated value of 35.6bn-real (US$15.5 billion).