1. BASF SE
2. Benteler International AG
3. BM Catalysts Limited
4. Bosal International
5. Continental AG
6. DEC Catalytic Converters
7. Ebersp?cher Gruppe GmbH & Co. KG
8. European Exhaust & Catalyst Ltd.
9. HJS Emission Technology GmbH & Co. KG
10. Jetex Exhausts Ltd.
11. Johnson Matthey PLC
12. Katcon Global
S.A.
13. Klarius Products Ltd.
14. Sango Co. Ltd.
15. Sejong Industrial Co. Ltd.
16. Tenneco Inc.
17. Umicore N.V.