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4-CPA (4-chlorophenoxyacetic acid) from Japan

4-CPA is a plant growth regulator and herbicide, an aromatic phenoxyacetic acid with chlorine substitution, used for celery and tobacco defoliation. Under HTS 2918.99.2050 as an aromatic pesticide with carboxylic acid and ether oxygen functions. Complies with Chapter 29 scope for chemically defined pesticide compounds.

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%

Import Tips

Include phytosanitary certificate if dual use as growth regulator in agriculture

Document stability data as it may require stabilizer per Chapter Note 1(f)

Watch for bulk vs packaged; retail packs may shift to Chapter 38