Commission Regulation (EEC) No 3668/89 of 7 December 1989 re-establishing the levying of customs duties on nuts, of iron or steel, falling within CN codes 7318 16 30, 7318 16 91 and 7318 16 99, originating in Singapore, to which the preferential tariff arrangements set out in Council Regulation (EEC) No 4257/88 apply.