2835.39.50.00/Sodium Hexametaphosphate (SHMP)/Japan

Sodium Hexametaphosphate (SHMP) from Japan

Sodium hexametaphosphate, a cyclic polyphosphate, functions as a water softener, dispersant in ceramics, and sequestrant in food processing. It qualifies for HTS 2835.39.5000 as an 'other' polyphosphate meeting chemical definition criteria.

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 detailed chemical structure diagrams to confirm metaphosphate classification

• Comply with TSCA inventory requirements for new chemical substances

• Avoid bulk packaging that could lead to classification as unprepared material