ACS Material LLC
Altair Nanotechnologies Inc. Dupont De Nemours Inc. Huntsman Corporation
Kronos Worldwide Inc. (Valhi Inc.)
Sigma-Aldrich Corporation (Merck KGaA)
Skyspring Nanomaterials Inc. Tronox Limited
US Research Nanomaterials Inc. and Xuancheng Jingrui New Material Co. Ltd.