2921.29.00/Triethylenetetramine (TETA)/Japan

Triethylenetetramine (TETA) from Japan

Triethylenetetramine is an acyclic tetraamine (H2N(CH2CH2NH)3H) widely used in curing epoxy resins for composites and adhesives. It qualifies under HTS 2921.29.00 as an other acyclic polyamine and derivatives thereof.

Duty Rate — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

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Import Tips

• Label with exact isomer content to distinguish from mixtures; ensure transport stabilizers documented; pitfall is classifying technical-grade vs pure forms differently