Dimethyl Terephthalate (DMT) Flakes
Dimethyl terephthalate (DMT) in flake form is a diester of terephthalic acid used primarily as a monomer in the production of polyethylene terephthalate (PET) resins. It falls under HTS 2917.37.00.00 as an aromatic polycarboxylic acid derivative, specifically the dimethyl ester form. This chemical is essential for manufacturing PET fibers, films, and bottles.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as purified terephthalic acid (PTA) instead of ester form
PTA is the direct acid classified earlier in the same subheading; DMT is the dimethyl ester derivative
If pre-polymerized into PET resin pellets
Polymerized PET falls under Chapter 39 as polyester resins, not Chapter 29 monomers
If blended with stabilizers or processing aids exceeding Chapter 29 impurity limits
Mixtures with significant additives become 'other chemical preparations' rather than pure compounds
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Verify purity levels (>99%) through Certificate of Analysis (COA) as impurities may affect classification or duty rates
• Ensure proper UN-approved packaging for flammable solids (UN 3077) to comply with DOT hazardous materials regulations
• Include end-use statements if importing for specific applications like food-contact PET to avoid FDA pre-approval issues
Related Products under HTS 2917.37.00.00
Purified Dimethyl Terephthalate (DMT) Powder
High-purity dimethyl terephthalate powder (>99.5%) used in continuous polymerization processes for PET production. Classified under HTS 2917.37.00.00 as the specific dimethyl ester of terephthalic acid, an aromatic dicarboxylic acid derivative. Essential for textile fiber and packaging applications.
Industrial Grade DMT for PET Resin Production
Industrial dimethyl terephthalate specifically formulated for PET resin manufacturing via melt-phase polymerization. Falls under HTS 2917.37.00.00 as a chemically defined aromatic polycarboxylic ester per Chapter 29 note (a). Widely used in bottle-grade PET production.
Melt Process DMT for Polyester Fiber Manufacturing
Dimethyl terephthalate optimized for melt polymerization in polyester staple fiber production. Classified under HTS 2917.37.00.00 as the dimethyl ester of terephthalic acid, meeting Chapter 29 requirements for separate chemically defined compounds. Key raw material for textile industry.
High-Purity DMT for Thin Film Applications
Ultra-high purity dimethyl terephthalate for PET film production requiring low oligomer content. HTS 2917.37.00.00 classification as aromatic polycarboxylic acid dimethyl ester per Chapter 29 definitions. Used in packaging films and metallized films.
DMT with Stabilizer for Long-Haul Transport
Dimethyl terephthalate with added phenolic antioxidant stabilizer per Chapter 29 note (f) for preservation during extended shipping. Still classified under HTS 2917.37.00.00 as the primary compound with stabilizer necessary for transport. Prevents oxidation and discoloration.
Technical Grade Dimethyl Terephthalate 99%
Technical grade DMT with 99% minimum assay used in cost-sensitive PET applications. Classified HTS 2917.37.00.00 as chemically defined dimethyl terephthalate meeting Chapter 29 purity standards. Common for textile and strapping applications.