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Copper Sulfate Pentahydrate Crystals from Mexico

Copper sulfate pentahydrate (CuSO4·5H2O), known as blue vitriol, is used in agriculture as a fungicide and in electroplating, classified in HTS 2833.29.51.90 as other sulfates. Its defined chemical structure as a copper salt confirms Chapter 28 placement.

Duty Rate — Mexico → United States

3.7%

Rate breakdown

9903.05.860%Universal product exemption (U.S. note 52(b))

Import Tips

Include REACH or TSCA certification for chemical registration in the U.S

Label with GHS pictograms for corrosive properties and proper PPE requirements

Specify crystal size (e.g

large technical grade) to avoid confusion with fine powder forms

Copper Sulfate Pentahydrate Crystals from Mexico — Import Duty Rate | HTS 2833.29.51.90