Tosoh Corporation (Japan)
Arkema (France)
BASF SE (Germany)
Honeywell International Inc (US)
W. R. Grace & Co (US)
Zeochem AG (Switzerland)
Merck KgaA (Germany)
Sorbead India (India)
KNT Group (Russia)
MolsivCN (China)
Union Showa K.K. (Japan)
Van Air
Inc (US)