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HSChapter 28
U.S. imports of molybdenum oxides and hydroxides (HS 282570) totaled $6.0M in July 2026, traded with 8 countries.
Importers of Molybdenum Oxides and Hydroxides paid $714K in duties in July 2026 — an effective duty rate of 11% on $6.3M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: July 2026 dataMolybdenum trioxide is the principal commercial form under this heading, functioning as the primary intermediate between molybdenite ore concentrate and downstream products including ferromolybdenum, lubricant additives, and specialty catalysts for petroleum refining. Chile leads US import supply — consistent with its position as a major copper-molybdenum mining nation — followed by South Korea and the Netherlands, both of which host significant molybdenum processing and trading operations. The entire heading is covered by a single tariff line (2825700000), so importers should document the specific oxide form and purity grade in commercial invoices to support end-use traceability. Molybdenum is classified as a critical mineral by the US government, adding strategic supply-chain significance to sourcing decisions.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
10 shipments/mo
Tariff line 2825700000 covers all molybdenum oxides and hydroxides, not just the trioxide. This includes molybdenum dioxide (MoO₂) and any hydroxide forms, though molybdenum trioxide (MoO₃) is by far the dominant commercial product. Importers of less common oxide forms should confirm classification with CBP if there is any ambiguity about whether the product might alternatively fall under a different chapter heading.
A certificate of analysis specifying the MoO₃ content, purity level, and physical form (powder, briquette, or technical grade) is standard. If the material is destined for catalyst manufacturing, an end-use certificate may be relevant for any applicable duty treatment. Commercial invoices should clearly state the chemical name and CAS number to avoid confusion with molybdenum metal or molybdenum sulfide concentrates, which classify under different headings.
Subheading 4 of 9 in heading 2825
Subheading 282570 · $6.0M of $85.6M
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 2825700000 | Molybdenum Oxides and Hydroxides | $6.0M | 11.81% | 104.96% | $714K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2825700000 | Molybdenum Oxides and Hydroxides | $2.0M |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
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ImportsExports
Imports
$6.0MYoY · Pro
Exports
$2.0MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Imports · July 2026
origin
Chile and Korea, South together supply 100% of it.
customs district
destination
entry
rate provision · imports
the effective duty rate is 11.81%.