Allied Signal                                           Asahi Chemical Industry Co., Ltd.        

   elf Atochem                                            BOREALIS

   BASF Engineering Plastics Co., Ltd.              BAYER

   Dainippon ink & Chemicals                         Degussa-huels AG

   DOW Plastics                                          Dupont Engineering Polymers

   ELENAC                                                 Eastman Chemical Company

   Elastogran GmbH                                     EMS-CHEMIE

   GE Plastics                                            LNP Engineering Plastics

   Mitsubishi Engineering-Plastics Co.              Phillips

   Polyplastics                                            Radici Plastics Division

   Rhodia Engineering Plastics                        SOLUTIA Inc.

   Solvay Advanced Polymers GmbH                TARGOR

   Teijin Chemicals Ltd.                                 Ticona