ASPANGER BERGBAU UND MINERALWERKE GMBH

BASF SE

CANCARB LTD

DENKA COMPANY LIMITED

Eastman

FERRO CORP.

FMC CORPORATION

INEOS

LABORATOIRES LABEMA

Micropowders, Inc.

NORDISK PERLITE APS

Ocsial

SEKISUI KASEI

TRONOX INC

VENATOR MATERIALS PLC

Wacker