Product classification
HS code for Molybdenum oxide: 2825.70
Molybdenum oxides and hydroxides.
Classification of molybdenum oxide under HS 2825.70
Molybdenum oxides and hydroxides are classified under HS code 2825.70. Chapter 28 covers inorganic chemicals, including precious metal compounds, radioactive elements, and isotopes. Heading 2825 specifically includes hydrazine and hydroxylamine and their inorganic salts, as well as other inorganic bases and metal oxides, hydroxides, and peroxides. Molybdenum trioxide (MoO3) and molybdenum dioxide (MoO2) are the primary products under this code. To be classified here, the product must generally be a separate chemically defined compound, distinguishing it from the crude roasted concentrates found in Chapter 26. These oxides are essential in the production of molybdenum metal, catalysts, and pigments.
- Covers
- Molybdenum trioxide (pure or chemical grade)
- Molybdenum dioxide
- Molybdic acid and molybdenum hydroxides
- High-purity molybdenum oxides for catalyst production
- Also under 2825.70
- Climax Molybdenum (molybdenum products)
- BASF (catalysts)
- Haldor Topsoe (refining catalysts)
- JX Nippon Mining & Metals (molybdenum compounds)
Codes often confused with 2825.70
Common mistake. A frequent point of confusion exists between HS code 2825.70 and HS code 2613.10. Code 2613.10 covers roasted molybdenum concentrates, which are sometimes commercially called "molybdenum oxide." However, if the product is a crude concentrate obtained by roasting the ore, it belongs in 2613.10. Only when it is further refined into a specific chemical compound does it move to 2825.70. Additionally, molybdates (salts of molybdic acid) should be classified under 2841.70 rather than 2825.70.
Top exporters and importers of HS 282570 (the code used for molybdenum oxide), 2025
In 2025, the largest exporter of HS 282570 (the code used for molybdenum oxide) in UN Comtrade data was Chile, with 44% of world exports; the largest importer in UN Comtrade data was the United States, with 15% of world imports. Vietnam did not report 2025 data, and its estimate from partner records misses its trade with other countries that did not report: in 2024 that was 11% of its exports here ($8.7M, CEPII BACI), so it may also belong among the top exporters.
Figures cover everything classified under HS 282570, not only molybdenum oxide.
Top exporters 2025 · share of world exports
- 1 Chile $376M 44% of world exports
- 2 Netherlands $167M 19% of world exports
- 3 China $67M 7.9% of world exports
Vietnam did not report 2025 data, and its estimate from partner records misses its trade with other countries that did not report: in 2024 that was 11% of its exports here ($8.7M, CEPII BACI), so it may also belong among the top exporters.
World total: $856M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 United States $91M 15% of world imports
- 2 Japan $85M 14% of world imports
- 3 France $54M 9.2% of world imports
World total: $590M 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 codes for molybdenum oxide
Brazil splits HS 2825.70 into 2 NCM codes. Pick the one that matches your product:
- 2825.70.10Molybdenum trioxide
- 2825.70.90Other molybdenum oxides and hydroxides
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about molybdenum oxide
What is the HS code for Molybdenum oxide?
The HS code for Molybdenum oxide is 282570 (Molybdenum oxides and hydroxides). The HS code for chemically defined molybdenum oxides and hydroxides is 2825.70.
How do I classify Molybdenum oxide for customs?
Molybdenum oxide is classified under HS code 282570 — Molybdenum oxides and hydroxides. This is a 6-digit subheading level code.
Is technical grade MoO3 classified here?
It depends on the purity and processing. If it is a refined chemical compound, it is 2825.70. If it is simply roasted ore concentrate, it is 2613.10.
Which countries are the top exporters of molybdenum oxide (HS 282570)?
In 2025, the top exporters of HS 282570 (the code used for molybdenum oxide) in UN Comtrade data were Chile ($376M, 44% of world exports), the Netherlands ($167M) and China ($67M). World exports came to about $856M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Vietnam did not report 2025 data, and its estimate from partner records misses its trade with other countries that did not report: in 2024 that was 11% of its exports here ($8.7M, CEPII BACI), so it may also belong among the top exporters.
Which countries are the top importers of molybdenum oxide (HS 282570)?
In 2025, the top importers of HS 282570 (the code used for molybdenum oxide) in UN Comtrade data were the United States ($91M, 15% of world imports), Japan ($85M) and France ($54M). World imports came to about $590M, 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.
Is the HS code for Molybdenum oxide the same in all countries?
The base HS code 282570 for Molybdenum oxide is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.
What is the NCM code for molybdenum oxide in Brazil?
Brazil splits HS 282570 into 2 NCM codes, so the right one for molybdenum oxide depends on the product's details: 2825.70.10 (Molybdenum trioxide), 2825.70.90 (Other molybdenum oxides and hydroxides).