Commission Regulation (EU) Nº 548/2012 of 25 June 2012 initiating an investigation concerning the possible circumvention of anti-dumping measures imposed by Council Regulation (EC) Nº 1458/2007 on imports of gas-fuelled, non-refillable pocket flint lighters originating in the People’s Republic of China by imports of gas-fuelled, non-refillable pocket flint lighters consigned from Vietnam, whether declared as originating in Vietnam or not, and making such imports subject to registration