Product classification
HS code for Molybdenum hydroxide: 2825.70
Molybdenum oxides and hydroxides.
Classification of molybdenum hydroxide under HS 2825.70
Molybdenum hydroxide is classified under HS code 282570. This code is part of Chapter 28, which encompasses inorganic chemicals, precious metal compounds, and rare-earth metals. Specifically, heading 2825 covers hydrazine and hydroxylamine and their inorganic salts, as well as other inorganic bases and other metal oxides, hydroxides, and peroxides. Subheading 2825.70 is dedicated specifically to molybdenum oxides and hydroxides. Molybdenum hydroxide, often existing in hydrated forms or as molybdic acid (which is chemically treated as a hydrated oxide), is used extensively in chemical synthesis, as a catalyst in the petroleum industry, and in the production of pigments. The classification is straightforward as it is based on the chemical composition of the substance as a metallic hydroxide.
- Covers
- Molybdenum(VI) hydroxide
- Molybdenum(IV) hydroxide
- Hydrated molybdenum trioxide (Molybdic acid)
- Molybdenum oxide hydrate
- Technical grade molybdenum hydroxides
- 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. Molybdenum hydroxide is sometimes misclassified under HS code 2841.70, which is for molybdates. While related, molybdates are salts of molybdic acid, whereas 2825.70 is for the hydroxide or oxide itself. Another error involves HS code 2613, which is for molybdenum ores and concentrates; 2825.70 is only for chemically defined compounds, not raw minerals extracted from the earth.
Top exporters and importers of HS 282570 (the code used for molybdenum hydroxide), 2025
In 2025, the largest exporter of HS 282570 (the code used for molybdenum hydroxide) 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 hydroxide.
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 hydroxide
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 hydroxide
What is the HS code for Molybdenum hydroxide?
The HS code for Molybdenum hydroxide is 282570 (Molybdenum oxides and hydroxides). The HS code for molybdenum hydroxide is 2825.70.
How do I classify Molybdenum hydroxide for customs?
Molybdenum hydroxide is classified under HS code 282570 — Molybdenum oxides and hydroxides. This is a 6-digit subheading level code.
Is molybdic acid classified under the same code?
Yes, in many commercial contexts, molybdic acid is considered a hydrated molybdenum oxide and is classified under 2825.70.
Which countries are the top exporters of molybdenum hydroxide (HS 282570)?
In 2025, the top exporters of HS 282570 (the code used for molybdenum hydroxide) 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 hydroxide (HS 282570)?
In 2025, the top importers of HS 282570 (the code used for molybdenum hydroxide) 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 hydroxide the same in all countries?
The base HS code 282570 for Molybdenum hydroxide 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 hydroxide in Brazil?
Brazil splits HS 282570 into 2 NCM codes, so the right one for molybdenum hydroxide depends on the product's details: 2825.70.10 (Molybdenum trioxide), 2825.70.90 (Other molybdenum oxides and hydroxides).