1. Advanced Elastomer Systems; Brussels Belgium
2. Advanced Elastomer Systems; Akron United States
3. Bayer AG; Dormagen Germany
4. E. I. Du Pont de Nemours and Co., Inc., Engineering Polymers; Wilmington United States
5. Degussa AG - High Performance Polymers; Marl Germany
6. Shell Research SA; Louvain-La-Neuve Belgium
7. Arkema, CERDATO; Serquigny France