28210 - Plastics materials & Resins (Miscellaneous)
28213 - Thermoplastic resins & Plastics materials + Resins for Protective coatings
28214 - Thermosetting resins & Plastics materials + Resins for Protective coatings
2821XX0 - - Plastics materials & Resins (Miscellaneous - Volume)
2821XX2 - - Plastics materials & Resins (Miscellaneous - Speciality)