1. ALCHIMICA S.A.
2. Arkema S.A.
3. BASF SE
4. CHRYSO India Private Limited
5. Elmich Pte Ltd
6. Fosroc Inc.
7. GAF Materials LLC
8. GCP Applied Technologies Inc.
9. Henkel AG & Co. KGAA
10. Henry Company
11. IKO PLC
12. Kemper System GmbH & Co. KG
13. MAPEI S.p.A.
14. Sika AG
15. Siplast Inc.
16. SOPREMA SAS
17. STP Limited
18. Tremco Incorporated