1. Armoloy of Connecticut Inc.
2. Black Diamond Coatings Inc.
3. Blue Wave Semiconductors Inc.
4. CemeCon AG
5. De Beers Group
6. Diamond Coatings Inc.
7. Diamond Coatings Ltd.
8. Diamond Custom Coatings Inc.
9. DIAMOND FLOOR COATINGS LLC
10. Diamond Product Solutions
11. Element Six (UK) Ltd.
12. Henan Liliang Diamond Co Ltd.
13. JCS Technologies Pte Ltd
14. John Crane
15. NeoCoat SA
16. OC Oerlikon Management AG
17. RobbJack Corporation
18. Sandvik AB
19. Schunk Carbon Technology
20. SP3 Diamond Tech
21. Specialty Coating Systems Inc.
22. Surface Technology Inc.
23. United Protective Technologies
LLC