Harmonized Tariff Schedule of the U.S. › Chapter 38 Miscellaneous chemical products
3815.19.00.00Tariff line
Classification path
Reaction initiators, reaction accelerators and catalytic preparations, not elsewhere specified or included
3815
Supported catalysts
Other
3815.19.00.00
Rates of duty
- General rate (Column 1)
- Free
- Special
- —
- Column 2
- 25%
- Unit
- kg
- Printed page
- 1669
Measure flagsfor origin CN
- Section 301 China, L39903.88.03 · 25%; exclusion: 9903.88.69 (Supported catalysts for polymerization, until 2026-11-09); 9903.88.69 (Supported catalysts of copper oxide or zinc oxide as the active ingredients for arsine removal, until 2026-11-09); 9903.88.69 (Supported catalysts with copper carbonate or zinc carbonate as the active ingredients for low temperature desulfurization, until 2026-11-09); 9903.88.69 (Supported catalysts with metal sulfide as the active substance for mercury removal, until 2026-11-09); 9903.88.69 (Supported catalysts with molybdenum compounds as the active substance for hydrogenation, until 2026-11-09); 9903.88.69 (Supported catalysts with zinc oxide as the active substance, until 2026-11-09)
- Partner government agency (PGA) requirementsEPA EP7