<ul><li>Johnson Matthey (UK)</li><li>W. R. Grace & Co. (USA)</li><li>Clariant (Switzerland)</li><li>Albemarle (USA)</li><li>BASF (USA)</li><li>INEOS Group Holdings S.A (Switzerland)</li><li>DuPont Water Solutions (Spain)</li><li>Air Products and Chemicals (USA)</li><li>Evonik Industries AG (Germany)</li><li>LyondellBasell Industries N.V. (The Netherlands)</li></ul>