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2921.51.30.00/4,4'-Diaminodiphenylmethane (DADPM)/Japan

4,4'-Diaminodiphenylmethane (DADPM) from Japan

DADPM, or methylene bis(o-chloroaniline) derivative, is an aromatic polyamine used in polyurethane curing agents. It qualifies under HTS 2921.51.30.00 per additional U.S. note 3 for listed diaminotoluene derivatives and salts.

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

• Submit structural formula and synthesis route to confirm note 3 listing

• Handle as potential carcinogen; ensure proper hazmat shipping declarations

• Test for isomer purity to prevent shift to general polyamine headings

4,4'-Diaminodiphenylmethane (DADPM) from Japan — Import Duty Rate | HTS 2921.51.30.00