HS code · 6-digit subheading
HS Code 7903.10 – Zinc dust
HS code 7903.10 is the 6-digit subheading for zinc dust. It is used for zinc dust for paints, zinc dust for chemical reduction, zinc dust for galvanizing, zinc dust for batteries and fine zinc powder.
What HS 7903.10 covers
Zinc dust, specifically referring to the fine particles produced by the condensation of zinc vapor, is a vital industrial raw material traded globally. Its unique properties make it indispensable for several key applications, primarily in anti-corrosion coatings such as zinc-rich primers and paints, where it provides cathodic protection to steel. It also serves as a powerful reducing agent in various chemical reactions and is utilized in certain metallurgical processes. The trade involves specialized chemical and paint manufacturers as importers, sourcing from primary zinc producers or dedicated zinc dust manufacturers as exporters. Critical characteristics for trade include particle size distribution, high purity, and specific surface area, all of which dictate its performance in diverse applications. Global demand is closely linked to the construction, automotive, and marine industries, where corrosion protection is paramount, and to the chemical sector for synthesis.
- Covers
- Zinc dust for paints
- Zinc dust for chemical reduction
- Zinc dust for galvanizing
- Zinc dust for batteries
- Fine zinc powder
- Atomized zinc dust
- Zinc gray
- Examples
- Umicore Zinc Dust
- EverZinc Zinc Dust
- Transpek Industry Zinc Dust
- Zochem Zinc Dust
- US Zinc Dust
Codes often confused with 7903.10
Common mistake. Often confused with 790390 (zinc powders and flakes) if the specific production method (condensation of vapor) is not considered, or with 2830 (sulfides, polysulfides) if it's a zinc compound rather than elemental zinc dust.
Top exporters and importers of HS code 790310, 2025
In 2025, the largest exporter of HS code 790310 in UN Comtrade data was Belgium, with 18% of world exports; the largest importer in UN Comtrade data was Poland, with 11% 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 Belgium $58M 18% of world exports
- 2 Sweden $44M 14% of world exports
- 3 South Korea $38M 12% of world exports
World total: $321M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Poland $34M 11% of world imports
- 2 United States $31M 10% of world imports
- 3 France $30M 9.4% of world imports
World total: $313M 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 7903.10
Brazil does not split HS 7903.10: its NCM code is 7903.10.00.
All Brazil NCM codes in heading 79.03 →
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text is official; the English is our translation.
Questions about HS 7903.10
What is HS code 790310?
HS code 790310 is a 6-digit subheading in the Harmonized System that covers: Zinc dust. Zinc dust, specifically referring to the fine particles produced by the condensation of zinc vapor, is a vital industrial raw material traded globally. Its unique properties make it indispensable for several key applications, primarily in anti-corrosion coatings such as zinc-rich primers and paints, where it provides cathodic protection to steel. It also serves as a powerful reducing agent in various chemical reactions and is utilized in certain metallurgical processes. The trade involves specialized chemical and paint manufacturers as importers, sourcing from primary zinc producers or dedicated zinc dust manufacturers as exporters. Critical characteristics for trade include particle size distribution, high purity, and specific surface area, all of which dictate its performance in diverse applications. Global demand is closely linked to the construction, automotive, and marine industries, where corrosion protection is paramount, and to the chemical sector for synthesis.
What products fall under HS code 790310?
Zinc dust for paints, Zinc dust for chemical reduction, Zinc dust for galvanizing, Zinc dust for batteries, Fine zinc powder, Atomized zinc dust, Zinc gray
What are common misclassifications for HS code 790310?
Often confused with 790390 (zinc powders and flakes) if the specific production method (condensation of vapor) is not considered, or with 2830 (sulfides, polysulfides) if it's a zinc compound rather than elemental zinc dust.
Which countries are the top exporters of goods under HS code 790310?
In 2025, the top exporters of HS code 790310 in UN Comtrade data were Belgium ($58M, 18% of world exports), Sweden ($44M) and South Korea ($38M). World exports came to about $321M, 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 790310?
In 2025, the top importers of HS code 790310 in UN Comtrade data were Poland ($34M, 11% of world imports), the United States ($31M) and France ($30M). World imports came to about $313M, 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 790310 structured?
HS code 790310 is a 6-digit subheading under the Harmonized System. The first 2 digits (79) identify the chapter, digits 3-4 (03) identify the heading, and digits 5-6 (10) specify the subheading. This code is standardized globally by the World Customs Organization.
What is the Brazil NCM code for HS code 790310?
In Brazil, HS code 790310 is NCM 7903.10.00. The last two digits are 00 because Brazil does not split this HS code further.