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Acheson Industries
USA, lubricants and additives for lubricants
Activated Metals & Chemicals, Inc.
USA, catalysts for hydrogenation and reductive alkylation reactions
Aderco Chemical Products Inc.
Canada; fuel additives
Akzo Nobel Catalysts
Netherlands; refining catalysts
Albemarle Corporation
USA, refining chemicals
Albright & Wilson
UK, additives for lubricants and fuels
Alcoa Adsorbents & Catalysts Division
USA, activated aluminas and high purity catalyst aluminas
Alken-Murray Corporation
USA, water treating chemicals
AllChem Industries
USA, water treatment, petroleum additives and industrial chemicals
Allegheny Petroleum Products Co.
USA, lubricants, additives
Altivia
USA, water treating chemicals
Apex Engineering Products Corporation
USA, scale removal chemicals
Aqua Chemicals (Singapore) Private Limited
Singapore, process and maintenance chemicals
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