chemical products for industrial purposes, namely, chemicals for the production of copolymers and terpolymers for use in the processing industry and chemicals for use in the [ pharmaceutical and ] cosmetic industries which are used to facilitate the mixing of process chemicals; synthetic resins for use in the manufacture of [ pharmaceutical and ] cosmetic products; plastics in the form of powders, granules, liquids or pastes for use in the manufacture of [ pharmaceutical and ]cosmetic products