Section 07 Plastics and articles thereof; rubber and articles thereof 39 Plastics and articles thereof 39 07 Polyethers and epoxide resins; polyesters, in primary forms 39 07 99 Polybutylene succinate (PBS) 39 07 99 60 Polybutylene succinate (PBS) Commodity Code Description 39 07 99 60 00 Polybutylene succinate (PBS)