Harmonized System
U.S. imports of Molybdenum Oxides and Hydroxides (HS 282570) totaled $4.2M in August 2026, imported from 9 countries.
Importers of Molybdenum Oxides and Hydroxides paid $415K in duties in August 2026, an average duty rate of 6.57% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Molybdenum Oxides and Hydroxides imports of $4.2M in August 2026 ran 33% below the year-to-date monthly average of $6.2M.
Last updated: August 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 import shipments a month
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 · $4.2M of $71.5M
ImportsExports
Imports
$4.2MYoY · free account
Exports
$2.6MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $73.1M of Molybdenum Oxides and Hydroxides and exported $48.0M.
Through August 2026. Source: U.S. Census Bureau.
Trade Directory
List your company under HS 282570 — Molybdenum Oxides and Hydroxides, so the companies trading it can find you. Be the first supplier listed.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 2825700000 | Molybdenum Oxides and Hydroxides | $6.3M | 6.57% | 52.14% | $415K |
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 | $2.6M |
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.
Imports · August 2026
origin
South Korea and Chile together supply 97% of it. China pays 15.7% duty; Chile 0.0%.
customs district
destination
entry
rate provision · imports
duty collected equals 6.57% of imports for consumption.