2832.30.50.00/Potassium Thiosulfate Crystals/Mexico

Potassium Thiosulfate Crystals from Mexico

Potassium thiosulfate (K2S2O3) crystals serve as a reagent in analytical chemistry labs and in dechlorination processes for aquaculture. This chemically defined thiosulfate of potassium is covered by HTS 2832.30.5000 under 'other' thiosulfates.

Duty Rate — Mexico → United States

13.1%

Rate breakdown

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

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Import Tips

• Include assay certificate showing >95% purity for chemical definition; label as 'not for human consumption'; watch for moisture content affecting crystal stability during shipping