Base
N1740962011-08-04New YorkClassification

The tariff classification of Calcium Nitrate Tetrahydrate (CAS # 13477-34-4), Copper (II) Sulfate Pentahydrate (CAS # 7758-99-8), Magnesium Sulfate Heptahydrate (CAS # 10034-99-8), Manganese (II) Sulfate Pentahydrate (CAS # 15244-3-7), and Zinc Sulfate Heptahydrate (CAS # 7446-20-0) from an unspecified country

U.S. Customs and Border Protection · CROSS Database · 5 HTS codes referenced

Cross-Source Intelligence

Data compiled from CBP CROSS Rulings, Census Bureau Trade Data · As of 2026-04-29 · Updates monthly

Summary

The tariff classification of Calcium Nitrate Tetrahydrate (CAS # 13477-34-4), Copper (II) Sulfate Pentahydrate (CAS # 7758-99-8), Magnesium Sulfate Heptahydrate (CAS # 10034-99-8), Manganese (II) Sulfate Pentahydrate (CAS # 15244-3-7), and Zinc Sulfate Heptahydrate (CAS # 7446-20-0) from an unspecified country

Ruling Text

N174096 August 4, 2011 CLA-2-28:OT:RR:NC:2:236 CATEGORY: Classification TARIFF NO.: 2833.21.0000; 2833.25.0000; 2833.29.4500; 2833.29.5100; 2834.29.1000 Mr. Jae Seok Park 1950 Albany Post Rd. Wallkill, NY 12589 RE: The tariff classification of Calcium Nitrate Tetrahydrate (CAS # 13477-34-4), Copper (II) Sulfate Pentahydrate (CAS # 7758-99-8), Magnesium Sulfate Heptahydrate (CAS # 10034-99-8), Manganese (II) Sulfate Pentahydrate (CAS # 15244-3-7), and Zinc Sulfate Heptahydrate (CAS # 7446-20-0) from an unspecified country Dear Mr. Park: In your letter received July 6, 2011, you requested a tariff classification ruling. You describe the items as Calcium Nitrate Tetrahydrate (CAS # 13477-34-4), Copper (II) Sulfate Pentahydrate (CAS # 7758-99-8), Magnesium Sulfate Heptahydrate (CAS # 10034-99-8), Manganese (II) Sulfate Pentahydrate (CAS # 15244-3-7), and Zinc Sulfate Heptahydrate (CAS # 7446-20-0). You state the items will be imported in white plastic jars packaged for retail sale and used as fertilizer for hydroponic. The applicable subheading for the Calcium Nitrate Tetrahydrate (CAS # 13477-34-4) will be 2834.29.1000, Harmonized Tariff Schedule of the United States (HTSUS), which provides for Nitrites; nitrates: Nitrates: Of calcium. The rate of duty will be free. The applicable subheading for the Copper (II) Sulfate Pentahydrate (CAS # 7758-99-8) will be 2833.25.0000, HTSUS, which provides for Sulfates; alums; peroxosulfates (persulfates): Other sulfates: Of copper. The rate of duty will be 1.4 percent ad valorem. The applicable subheading for the Magnesium Sulfate Heptahydrate (CAS # 10034-99-8) will be 2833.21.0000, HTSUS, which provides for Sulfates; alums; peroxosulfates (persulfates): Other sulfates: Of magnesium. The rate of duty will be 3.7 percent ad valorem. The applicable subheading for the Manganese (II) Sulfate Pentahydrate (CAS # 15244-3-7) will be 2833.29.5100, HTSUS, which provides for Sulfates; alums; peroxosulfates (persulfates): Other sulfates: Other: Other. The rate of duty will be 3.7 percent ad valorem. The applicable subheading for the Zinc Sulfate Heptahydrate (CAS # 7446-20-0) will be 2833.29.4500, HTSUS, which provides for Sulfates; alums; peroxosulfates (persulfates): Other sulfates: Other: Of zinc. The rate of duty will be 1.6 percent ad valorem. This merchandise may be subject to the requirements of the Toxic Substances Control Act (TSCA), which are administered by the U.S. Environmental Protection Agency. Information on the TSCA can be obtained by contacting the EPA at 1200 Pennsylvania Avenue, N.W., Mail Code 70480, Washington, D.C., by telephone at (202) 554-1404, or by visiting their website at www.epa.gov. Duty rates are provided for your convenience and are subject to change. The text of the most recent HTSUS and the accompanying duty rates are provided on World Wide Web at http://www.usitc.gov/tata/hts/. This ruling is being issued under the provisions of Part 177 of the Customs Regulations (19 C.F.R. 177). A copy of the ruling or the control number indicated above should be provided with the entry documents filed at the time this merchandise is imported. If you have any questions regarding the ruling, contact National Import Specialist Nuccio Fera at (646) 733-3434. Sincerely, Robert B. Swierupski Director National Commodity Specialist Division

Related Rulings for HTS 2833.21.00.00

Other CBP classification decisions referencing the same tariff code.