Dispute between Honda Moto dealerships regarding operations in a given region. Binding effect of the arbitration clause entered into between the dealership and the Associação Brasileira de Distribuidores Honda. Challenge to the enforcement of the arbitral award based on the allegation that the arbitration clause does not exist. Establishment in the arbitration clause of a structure for adjudicating complaints of violations of the territorial limits of operation of each dealership, with an Arbitral Council, which adjudicates at first instance, and a Superior Arbitral Council, at second instance. "In principle, given that the appellant is a Honda dealership, it is to be presumed that it participated in the contract, represented by the Associação", and "the arbitration clause has a mandatory character for the recipients of the distributed concessions":