Council Regulation (EEC) No. 4064/89 on the control of concentrations between undertakings 21 December 1989 - World Trade and Arbitration Materials View Council Regulation (EEC) No. 4064/89 on the control of concentrations between undertakings 21 December 1989 by - World Trade and Arbitration Materials Council Regulation (EEC) No. 4064/89 on the control of concentrations between undertakings 21 December 1989 2 2 World Trade and Arbitration Materials