Commission Regulation (EC) No 559/2005 of 12 April 2005 on initiating an investigation concerning the possible circumvention of anti-dumping measures imposed by Council Regulation (EC) No 2074/2004 on imports of certain ring binder mechanisms originating in the People’s Republic of China by imports of certain ring binder mechanisms consigned from Lao People’s Democratic Republic, whether declared as originating in Lao People’s Democratic Republic or not and making such imports subject to registration