1. Arauco SA
2. Armstrong World Industries Inc.
3. Beijing New Building Material (Group) Co. Ltd.
4. CSR Limited
5. Etex Building Performance Limited
6. Fibran S.A.
7. Fletcher Building Limited
8. Knauf Limited
9. Kronoplus Limited
10. Masterplast Group
11. PABCO Building Products
LLC
12. Saint-Gobain Group
13. USG BORAL
14. voestalpine Metal Forming GmbH
15. Winstone Wallboards Limited
16. Xella Group