?- Atlas Roofing Corporation
- BASF SE
- Beijing New Building Material (Group) Co. Ltd.
- DuPont
- GAF
- Huntsman International LLC
- Johns Manville
- Kingspan Group
- Knauf Gips KG
- Owens Corning (including Paroc Group)
- ROCKWOOL International A/S
- Saint-Gobain
- Synthos S.A