Commission Regulation (EEC) No 2273/88 of 25 July 1988 re-establishing the levying of customs duties on alcaloids of cinchona and their derivatives; salts thereof CN codes 2939 21 10, 2939 21 90 and 2939 29 00 originating in Indonesia to which the preferential tariff arrangements set out in Council Regulation (EEC) No 3635/87 apply.