Finally, the Commission notes that CWP is not a major player on what is a difficult and highly concentrated market dominated by large firms such as Rhodia, Astaris, Prayon and TI. ###>Enfin, la Commission constate que CWP est un petit acteur sur un marché difficile, fortement concentré et dominé par de grandes entreprises, telles que Rhodia, Astaris, Prayon et TI.