HS Code for Dimethyl terephthalate

Dimethyl terephthalate (DMT) is classified under HS code 2917.37. This classification is situated within Chapter 29 (Organic Chemicals), specifically under heading 2917, which covers polycarboxylic acids, their anhydrides, halides, peroxides, and peroxyacids, and their derivatives. Dimethyl terephthalate is an ester of terephthalic acid, which is an aromatic polycarboxylic acid. The HS nomenclature provides a specific subheading for this compound due to its high volume in global trade as a primary feedstock for polyester production. The classification is determined by GRI 1, as the subheading 2917.37 specifically names "Dimethyl terephthalate." It is a separate chemically defined compound, typically traded in molten form or as white flakes, and its classification remains consistent regardless of its physical state.

Products Included

• Dimethyl terephthalate (DMT)
• 1,4-Benzenedicarboxylic acid, dimethyl ester
• DMT flakes
• Molten dimethyl terephthalate

Common Misclassification

A frequent misclassification occurs with HS code 2917.36, which is reserved for terephthalic acid (PTA) and its salts. While DMT and PTA are both used to produce polyethylene terephthalate (PET), they are chemically distinct (an ester versus an acid). Another common error is using 2917.39, the "other" category for aromatic polycarboxylic acids. Since DMT has its own dedicated code (2917.37), using the residual code is incorrect. It should also not be confused with dimethyl phthalate (an isomer), which falls under 2917.34.

FAQ

What is the HS code for Dimethyl terephthalate?

The HS code for Dimethyl terephthalate is 2917.37.

How does DMT differ from PTA in classification?

DMT (2917.37) is the dimethyl ester of terephthalic acid, whereas PTA (2917.36) is the purified acid itself. They are classified in adjacent subheadings but must be declared accurately based on their chemical structure.