ArcelorMittal Coke and Chemicals
Arxada Wood Protection SA
CMC Chemicals (Pty) Ltd T/A Timberlife
Dolphin Bay Chemicals
FFS Refiners
ICS Hydrocarbons
Industrial Distillers and Refiners
Arxada Asia Pacific
Kanematsu-NNK Corporation
Katayama Chemical Inc
Koshii & Co
Koshii Preserving
Rural Electrification Board (REB)
Xyence
Arxada Asia-Pacific
Kop-coat (NZ)
Koppers Performance Chemicals (Aust)
Koppers Performance Chemicals (NZ)
Preschem Australia
TimTech Chemicals Ltd
Accoya
Arxada Wood Protection (Europe)
Berkem
Biocide Information Service
Janssen Pharmaceutica NV
Lanxess
Koppers Performance Chemicals (Europe)
Kurt Obermeier GmbH
PPG
Rutgers Organics - Impra
Spiess-Urania Chemicals
Wolman
Woodchem BV
Arxada Wood Protection
Copper Care Wood Preservatives
Etimine USA
EverDry Forest Products
Genics Inc
Kebony USA
Kop-Coat Inc
Koppers Performance Chemicals
Nisus Corporation
Pole Maintenance Company
Rio Tinto Minerals - US Borax
Sansin Corporation
Stella-Jones Inc
Viance LLC
Universal Forest Products UFP
Weyerhaeuser
Lonza Quimetal
Montana Quimica SA
Pluschemie SA