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• 
  Admark Polycoats
• 
  Advanced Polymer Sales
• 
  Allnex
• 
  Alrez International*
• 
  Ameriplas, Inc
• 
  CenoStar
• 
  Chemguard
• 
  Cimbar Performance Minerals
• 
  Cosmo Chemical Co., Ltd.
• 
  DBC® Double Bond Chemical
• 
  Dystar
• 
  Endex International
• 
  EP Minerals
• 
  EverZinc
• 
  Excalibar Minerals, LLC
• 
  Glassflake Limited
• 
  Heubach
• 
  Hifull
• 
  Huijin Chemical
• 
  ICG Specialty Chemicals
• 
  Mazda Colours Ltd.
• 
  Midwest Calcium Carbonates
• 
  Natural Enrichment Industries
• 
  Orion Engineered Carbons
• 
  Pfau
• 
  Phoenix Plastics™
• 
  PMC Biogenix™
• 
  Polímeros Sintéticos
• 
  Potters Industries LLC
• 
  Shandong Dawn Titanium Industry Co., Ltd.
• 
  Shin-Etsu Chemical
• 
  Sibelco®
• 
  Solvay
• 
  Specialty Minerals Inc.
• 
  St. Louis Group
• 
  Tolsa Group
• 
  Vanderbilt Minerals
• 
  Yipin® Pigments
• 
  Zinc Nacional