U.S. Customs and Border Protection · CROSS Database · 1 HTS code referenced
Primary HTS Code
3903.90.5000
$12.7M monthly imports
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Ruling Age
33 years
Data compiled from CBP CROSS Rulings, Census Bureau Trade Data · As of 2026-05-05 · Updates monthly
The tariff classification of "POLYIMILEX" (CAS Reg. No.26316-43-8), a copolymer resin, in powder or pellet form, fromJapan
NY 882461 March 18, 1993 CLA-2-39:S:N:N7:238 882461 CATEGORY: Classification TARIFF NO.: 3903.90.5000 Mr. Mac Anegawa Calsak Corporation P.O. Box 9036 Compton, CA 90224 RE: The tariff classification of "POLYIMILEX" (CAS Reg. No. 26316-43-8), a copolymer resin, in powder or pellet form, from Japan Dear Mr. Anegawa: In your letter dated January 26, 1993, you requested a tariff classification ruling. The subject merchandise, "POLYIMILEX", is a copolymer resin, in powder or pellet form, consisting of, by weight, 70% styrene monomer and 30% phenyl maleimide (PMI) monomer. You state that the product is used as a heat stabilizer. The applicable subheading for this product will be 3903.90.5000, Harmonized Tariff Schedule of the United States (HTS), which provides for polymers of styrene, in primary forms: other: other. The rate of duty will be 0.9 cents per kilogram plus 9.2 percent ad valorem. This merchandise may be subject to the regulations of the Environmental Protection Agency, Office of Pesticides and Toxic Substances. You may contact them at 402 M Street SW, Washington, DC 20460, telephone number (202) 554-1404, or EPA Region II at (908) 321-6669. This ruling is being issued under the provisions of Section 177 of the Customs Regulations (19 C.F.R. 177). A copy of this ruling letter should be attached to the entry documents filed at the time this merchandise is imported. If the documents have been filed without a copy, this ruling should be brought to the attention of the Customs officer handling the transaction. Sincerely, Jean F. Maguire Area Director New York Seaport
Other CBP classification decisions referencing the same tariff code.