💾 Data Updated: 2025 HTS Revision 30 • Last updated: November 24, 2025

9902.09.77 - Mixtures of copper dihydroxide (cupric hydroxide) (CAS No. 20427-59-2) and application adjuvants (provided for in subheading 3808.92.30)

Details

FieldValue
Unit of QuantityN/A
General Rate of DutyFree
Special Rate of DutyNo change
Column 2 Rate of DutyNo change
Quota QuantityN/A
Additional DutiesN/A

Overview

This HTS category, 9902.09.77, specifically classifies mixtures containing copper dihydroxide (cupric hydroxide) and application adjuvants. These mixtures are intended for use in agricultural or pest control applications, with the copper dihydroxide acting as an active ingredient and the adjuvants enhancing its effectiveness or ease of application. The reference to CAS No. 20427-59-2 precisely identifies the copper dihydroxide component.

This classification is part of Chapter 99, which deals with temporary legislation and modifications to the Harmonized Tariff Schedule. It is crucial to distinguish this specific mixture from general chemical compounds or preparations found in other chapters. For instance, pure copper dihydroxide or unrelated mixtures would be classified elsewhere. The inclusion of "application adjuvants" and the explicit reference to subheading 3808.92.30 indicate that these are formulated products rather than raw chemical substances.

As a leaf node within the HTS database, HTS Code 9902.09.77 does not have further subcategories. Therefore, the primary focus for classification under this code is to confirm the presence of both copper dihydroxide and application adjuvants within the imported mixture, and to ensure it aligns with the intended purpose and specifications outlined by the temporary legislation under which it is classified. Importers should verify that their product precisely matches this description to avoid misclassification and potential penalties.

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