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HSChapter 28
U.S. imports of molybdenum oxides and hydroxides (HS 282570) totaled $13.3M in April 2026, traded with 8 countries.
Importers of Molybdenum Oxides and Hydroxides paid $1.4M in duties in April 2026 — an effective duty rate of 12% on $12.2M in dutiable value, based on actual customs collections rather than the published tariff schedule. Molybdenum Oxides and Hydroxides imports of $13.3M in April 2026 ran 98% above the year-to-date monthly average of $6.7M.
Last updated: April 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.
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.
Monthly import values over time
| Country | Imports | Exports | Balance |
|---|---|---|---|
| INDIA | -- | $5.2M | +$5.2M |
| CHILE | $4.6M | -- | -$4.6M |
| KOREA, SOUTH | $2.8M | -- | -$2.8M |
| BELGIUM | $2.1M | -- | -$2.1M |
| MEXICO | $1.4M | -- | -$1.4M |
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 2825700000 | MOLYBDENUM OXIDES AND HYDROXIDES | $13.3M | 11.58% | $1.4M |
MOLYBDENUM OXIDES AND HYDROXIDES
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2825700000 | MOLYBDENUM OXIDES AND HYDROXIDES | $5.4M |
MOLYBDENUM OXIDES AND HYDROXIDES
1.3M kg
URANIUM ENRICHED IN U235 ETC. PLUTONIUM ETC.
HS 284420
NATURAL URANIUM & COMPOUNDS, ALLOYS & CERAMICS ETC
HS 284410
ANHYDROUS AMMONIA
HS 281410
ALLOYS, DISPERSIONS,ISOTOPES & COMPOUNDS NES
HS 284443
SILICON, UNDER 99.99% (BY WEIGHT) SILICON
HS 280469
PHOSPHORIC ACID AND POLYPHOSPHORIC ACIDS
HS 280920
| Port | Imports | Exports | Balance |
|---|---|---|---|
| HOUSTON, TX | $2.8M | $5.2M | +$2.4M |
| BALTIMORE, MD | $7.5M | -- | -$7.5M |
| ALEXANDRIA BAY, NY | $1.2M | -- | -$1.2M |
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