1. Bulk Apothecary
2. Dicalite Management Group Inc.
3. Dupr? Minerals Limited
4. D?mmstoff-Fabrik Klein GmbH
5. Exfoliators (Aust) Pty Ltd.
6. Isola Vermiculite GmbH
7. K. Hoffmann GmbH
8. Malli Minerals International
Inc
9. Palabora Copper (Pty) Limited
10. Palmetto Vermiculite Company
11. Perlite Vermiculite Packaging Industries Inc.
12. Samrec Vermiculite Zimbabwe (Pvt) Ltd
13. Therm-O-Rock West Inc.
14. Virginia Vermiculite LLC
15. Whittemore Company Inc.