On this basis, the tariffs obviously constitute an important instrument of the commercial policy implemented by the port to encourage shipowners and shippers to use the port infrastructure and undertakings to establish themselves there to develop their production or service activities.
Enfin, l'arrêt de la Cour de justice dans l'affaire C-18/01 Korhonen [54] ne concerne pas le droit des aides d'État mais la directive 92/50/CEE du Conseil [55].