It's not just Sonaca and Arcelor. More and more Belgian companies start activities in Brazil and like I said before, Belgian delegations are frequently in negotiations with airlines wich could start GRU-BRU. Brazil is just like many Asian countries a really booming market. In 2009 many belgian companies asked Embraer to open some kind of European base in Belgium/Brussels. Embraer responded and said they are evaluating to do something in Belgium, but a non-stop service between GRU and BRU would help, they said.NCB wrote: If you combine all the Sonaca and Arcelor demand potential, you wouldn't be able to fill a single B772ER per year.
TAM and SQ could both start this route, but SQ could have the advantage of pax comming from SIN and Europe/Africa flying to GRU. While TAM can probably don't fill the same amount of seats.
About the aircraft, I would think of a B772ER. But a lot will depend on how many pax will fly SIN-GRU, if there is a very high demand for this route we could see more. Altough I don't think a B77W would be suited.