The Board of the AdC, by Order dated 24.05.2006, ordered an enquiry to be opened for infringing paragraph 4 of Law 18/2003. The Competition Authority became aware that the prices charged for maritime towage services at the port of Setúbal had already increased substantially during 2006 and that the companies providing the service at this port had aligned their prices. It was concluded that the conduct of the defendants fulfilled all the objective and subjective elements, corresponding to the normative descriptions in Article 4(1)(a) of Law 18/2003, and is therefore illicit. On 16.04.2007 the Board issued a condemnatory decision imposing fines of : REBONAVE - Reboques e Assistência Naval, S.A.: 50,000.00, REBOSADO - Reboques do Sado, Lda: 87,000.00; Lutamar-Prestação de Serviços à Navegação, Lda: 48,000.00