Changes made by Commission Regulation (EEC) No 639/91 of 14 March 1991 ending the charges against the tariff ceilings opened, in the framework of generalized tariff preferences, by Council Regulation (EEC) No 3897/89 in respect of certain textile products originating in Thailand, Pakistan and China, and repealing Regulations (EEC) No 3891/90 and (EEC) No 3892/90: Commission Regulation (EEC) No 3892/90 of 21 December 1990 reintroducing the levying of the customs duties applicable to the products of category No 97 (order No 40.0970) originating in China, to which the preferential tariff arrangements of Council Regulation (EEC) No 3897/89 apply