The following is a current listing of manufacturing/owner site MASC members. Membership lists on the website are updated quarterly.

AkzoNobel, High Point
Alcami
Archer Daniels Midland (ADM)
Axalta
BP Chemical Cooper River Plant
Century Aluminum
Charleston International Manufacturing Center
Corning Inc.
DAK Americas, An Alpek Polyester Business
Dow Corning
DTI DanChem
E. I. Dupont DeNemours & Co.
Elementis Chromium
Evonik Charleston & Greensboro
Fortron Industries
GE/Global Nuclear Fuel
Ingevity
Ingredion
Invista S.a.r.l
Lanxess
KAO Specialties Americas LLC
Medical University of South Carolina
Nucor Steel Berkeley
Robert Bosch Corp.
Solvay
Volvo