1. Advanced Drainage Systems Inc.
2. Alpek S.A.B. de C.V.
3. Ark Plastics Ltd.
4. Avangard Innovative
5. B & B Plastics Recycling Inc.
6. B. Schoenberg & Co. Inc.
7. Berry Global Inc.
8. Consolidated Container Company
9. Covetsro AG
10. Imerys S.A.
11. Indorama Ventures Public Company Limited
12. Jayplas
13. Kuusakoski Oy
14. KW Plastics
15. MBA Polymers Inc.
16. Montello S.p.A.
17. MTM Plastics GmbH
18. Plastipak Holdings Inc.
19. Recycled Plastics UK
20. Republic Services Inc.
21. Seraphim Plastics LLC
22. Shakti Plastic Industries
23. Teijin Limited
24. Ultra Poly Corporation
25. Veolia Environnement S.A.