1. Altenergy Technologies Private Limited
2. AP Emissions Technologies
3. BASF SE
4. BENTELER International AG
5. Bosal International
6. Boysen GmbH & Co. KG
7. Continental AG
8. DCL International Inc.
9. Ebersp?cher Gruppe GmbH & Co. KG
10. Hanwoo Industrial Co.Ltd.
11. HJS Emission Technology GmbH & Co. KG
12. Johnson Matthey PLC
13. Katcon Global
S.A. de C.V.
14. Klarius Products Ltd.
15. Magnaflow by Car Sound Exhaust System Inc.
16. Marelli Corporation
17. Nett Technologies Inc.
18. Sango Co. Ltd.
19. Sejong Industrial Co.Ltd.
20. Sharda Motor Industries Ltd.
21. Tata AutoComp Systems Ltd.
22. Tenneco Incorporated
23. TOKYO ROKI CO. LTD.
24. Umicore
25. Yutaka Giken Co. Ltd.