No L 220/28 15. 8. 90 Official joumai of the European Communities (Acts whose publication is not obligatory) COMMISSION COMMISSION DECISION of 18 July 1990 relating to a proceeding under Article 65.of the ECSC Treaty concerning an agreement and concerted practices engaged in by European producers of cold-rolled stainless steel flat products (Only the German, English, Spanish, French, Italian and Dutch texts are authentic) (90/417/ECSC) THE COMMISSION OF THE EUROPEAN COMMUNITIES, Having regard to the Treaty establishing the European Coal and Steel Community, and in particular Article 65 thereof, o Having regard to information received by the Commis- sion and inspections carried out under Article 47 of the ECSC Treaty by officials: of the Commission on 28 and 29 April 1988 in the offices of the seven ECSC producers of cold-rolled stainless steel flat products. Having regard to the written and oral comments made under Article 36 of the Treaty in the name and on behalf of the parties, Whereas : The Commission has come to the view that the members of the so-called Sendzimir Club, which comprises ECSC and Finnish and Swedish makers of the products in ques- tion, have made and operated a quota and price agree- ment in 1986 which contravened Article 65 of the Treaty. By its letter of 5§ October 1988, the Commission, under ‘Article 36 of the Treaty, gave the undertakings concerned the opportunity to submit their comments. The-undertakings submitted their written comments by 10 January 1989 and supplemented them by .20 March 1989. Authorized representatives of those concerned also submitted oral comments on their behalf at a hearing held from 29 to 31 May 1989. A. THE FACTS I. General summary 1.  The European producers of cold-rolled stainless steel flat products grouped together in the so-called Sendzimir Club have been involved during the period 1986 to 1988 in: — quota arrangements, — concerted pricing practices, — bilateral interpenetration agreements: 2.  Details of these agreements and concerted practices as well as of the Sendzimir Club itself are set out herei- nafter. IL. The Sendzimir Club (Z Club) 1. The Z Club is a'professional association -of European steel producers of cold-rolled stainless steel flat products. This' association gets its name from the specialized Send- zimir mills invented by Dr Sendzimir and operated by its members. Their output is mostly in the form of stainless- cold-rolled sheet under 3 mm in thickness and over 500 mm in width.