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2931.44.00.00/Methylphosphonic Acid Aqueous Solution (50%)/Japan

Methylphosphonic Acid Aqueous Solution (50%) from Japan

A 50% aqueous solution of methylphosphonic acid qualifies under HTS 2931.44.00.00 per Chapter 29 note (d) for products of this heading dissolved in water. It is used in metal surface treatment and as a catalyst intermediate.

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

• Confirm solution concentration stays within 'normal' dilution for transport per note (d); provide stability data

• Label clearly as corrosive to prevent delays at FDA or EPA ports

Methylphosphonic Acid Aqueous Solution (50%) from Japan — Import Duty Rate | HTS 2931.44.00.00