HS code · 6-digit subheading
HS Code 3815.19 – Catalysts, supported; reaction initiators, reaction accelerators and catalytic preparations, with an active substance other than nickel or precious metals or their compounds, n.e.c. or included
HS code 3815.19 is the 6-digit subheading for catalysts, supported, reaction initiators, reaction accelerators and catalytic preparations, with an active substance other than nickel or precious metals or their compounds, n.e.c. or included. It is used for zeolite catalyst, iron-based ammonia synthesis catalyst, copper chromite catalyst, vanadium pentoxide catalyst and titanium dioxide photocatalyst.
What HS 3815.19 covers
This 'other' category for supported catalysts, reaction initiators, accelerators, and catalytic preparations includes those with active substances other than nickel or precious metals or their compounds. This is a vast and diverse group, encompassing catalysts based on base metals (like copper, iron, vanadium), metal oxides, zeolites, and various organic or inorganic compounds. They are utilized across a broad spectrum of industries, including fertilizer production, polymer manufacturing, environmental control (e.g., NOx reduction), and general chemical synthesis. Importers and exporters include chemical manufacturers, environmental technology firms, and specialized catalyst producers. Trade considerations often focus on cost-effectiveness, specific reaction pathways, regeneration methods, and the environmental impact of their production and disposal.
- Covers
- Zeolite catalyst
- Iron-based ammonia synthesis catalyst
- Copper chromite catalyst
- Vanadium pentoxide catalyst
- Titanium dioxide photocatalyst
- Molecular sieve catalyst
- Acid catalyst for alkylation
- Manganese oxide catalyst.
- Examples
- BASF Zeolite Catalysts
- Clariant Base Metal Catalysts
- Topsoe Iron Catalysts
- Evonik Catalysts
- Grace Davison Catalysts.
Codes often confused with 3815.19
Common mistake. This is a residual category, so it's crucial to ensure the catalyst does not contain nickel (381511) or precious metals (381512) to avoid misclassification.
Top exporters and importers of HS code 381519, 2025
In 2025, the largest exporter of HS code 381519 in UN Comtrade data was the United States, with 25% of world exports; the largest importer in UN Comtrade data was Germany, with 12% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Top exporters 2025 · share of world exports
- 1 United States $1.3B 25% of world exports
- 2 China $725M 14% of world exports
- 3 Germany $688M 13% of world exports
World total: $5.3B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Germany $625M 12% of world imports
- 2 China $603M 11% of world imports
- 3 United States $448M 8.5% of world imports
World total: $5.3B Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries that did not report are estimated from what other countries recorded trading with them. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM code for 3815.19
Brazil does not split HS 3815.19: its NCM code is 3815.19.00.
All Brazil NCM codes in heading 38.15 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 3815.19
What is HS code 381519?
HS code 381519 is a 6-digit subheading in the Harmonized System that covers: Catalysts, supported; reaction initiators, reaction accelerators and catalytic preparations, with an active substance other than nickel or precious metals or their compounds, n.e.c. or included. This 'other' category for supported catalysts, reaction initiators, accelerators, and catalytic preparations includes those with active substances other than nickel or precious metals or their compounds. This is a vast and diverse group, encompassing catalysts based on base metals (like copper, iron, vanadium), metal oxides, zeolites, and various organic or inorganic compounds. They are utilized across a broad spectrum of industries, including fertilizer production, polymer manufacturing, environmental control (e.g., NOx reduction), and general chemical synthesis. Importers and exporters include chemical manufacturers, environmental technology firms, and specialized catalyst producers. Trade considerations often focus on cost-effectiveness, specific reaction pathways, regeneration methods, and the environmental impact of their production and disposal.
What products fall under HS code 381519?
Zeolite catalyst, iron-based ammonia synthesis catalyst, copper chromite catalyst, vanadium pentoxide catalyst, titanium dioxide photocatalyst, molecular sieve catalyst, acid catalyst for alkylation, manganese oxide catalyst.
What are common misclassifications for HS code 381519?
This is a residual category, so it's crucial to ensure the catalyst does not contain nickel (381511) or precious metals (381512) to avoid misclassification.
Which countries are the top exporters of goods under HS code 381519?
In 2025, the top exporters of HS code 381519 in UN Comtrade data were the United States ($1.3B, 25% of world exports), China ($725M) and Germany ($688M). World exports came to about $5.3B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of goods under HS code 381519?
In 2025, the top importers of HS code 381519 in UN Comtrade data were Germany ($625M, 12% of world imports), China ($603M) and the United States ($448M). World imports came to about $5.3B, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
How is HS code 381519 structured?
HS code 381519 is a 6-digit subheading under the Harmonized System. The first 2 digits (38) identify the chapter, digits 3-4 (15) identify the heading, and digits 5-6 (19) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 381519?
In Brazil, HS code 381519 is NCM 3815.19.00. The last two digits are 00 because Brazil does not split this HS code further.