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Sodium Tripolyphosphate for Water Treatment from Mexico

STPP for boiler water treatment sequesters scale-forming ions to prevent corrosion. It is chemically defined sodium triphosphate under HTS 2835.31.00.00 in polyphosphates subheading.

Duty Rate — Mexico → United States

11.4%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico

Import Tips

EPA registration under FIFRA if sold as pesticide/anti-fouling; otherwise TSCA

Specify dosage rates in technical data sheet

Sodium Tripolyphosphate for Water Treatment from Mexico — Import Duty Rate | HTS 2835.31.00.00