Commission Regulation (EEC) No 635/87 of 2 March 1987 re-establishing the levying of customs duties on diodes, transistors and similar semiconductor devices; light-emitting diodes; electronic micro-circuits; parts, falling within subheadings 85.21 D and E, originating in South Korea, to which the preferential tariff arrangements set out in Council Regulation (EEC) No 3924/86 apply.