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HSChapter 26
U.S. imports of unroasted molybdenum ores and concentrates (HS 261390) totaled $58.3M in April 2026, traded with 7 countries.
Unroasted Molybdenum Ores and Concentrates imports of $58.3M in April 2026 ran 17% above the year-to-date monthly average of $50.0M.
Last updated: April 2026 dataUnroasted molybdenum concentrates — primarily molybdenite (MoS₂) — are the direct output of flotation circuits at copper-moly mines and represent the raw feedstock stage before calcination. Peru leads US imports under this heading, followed by Mexico and Chile, reflecting the large porphyry copper deposits in the Andes where molybdenum is co-produced. Importers and roasters should ensure that the absence of a roasting step is clearly documented, as misclassification between roasted (261310) and unroasted (261390) material is a recurring customs audit issue.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Unroasted concentrate retains the sulfide mineral form (MoS₂) and has not been thermally oxidized. Roasted material has been calcined to produce molybdic oxide (MoO₃). An assay report identifying the chemical form — sulfide versus oxide — is the primary evidence used to support classification under 261390 versus 261310.
Armenia appears among the top suppliers to the US under this heading, reflecting active molybdenum mining in the Caucasus region. While not as large a source as Peru or Mexico, its presence signals supply diversification opportunities for buyers seeking to reduce concentration risk in Andean supply chains.
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Monthly import values over time
| Country | Imports | Exports | Balance |
|---|---|---|---|
| PERU | $42.6M | -- | -$42.6M |
| NETHERLANDS | -- | $26.6M | +$26.6M |
| CHILE | $11.1M | $9.3M | -$1.7M |
| MEXICO | $4.6M | $8.8M | +$4.1M |
| BELGIUM | -- | $6.0M | +$6.0M |
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 2613900000 | MOLYBDENUM ORES AND CONCENTRATES NOT ROASTED | $58.3M | 0.07% | $9 |
MOLYBDENUM ORES AND CONCENTRATES NOT ROASTED
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2613900000 | MOLYBDENUM ORES AND CONCENTRATES NOT ROASTED | $52.6M |
MOLYBDENUM ORES AND CONCENTRATES NOT ROASTED
1.4M ckg
| State | Imports | Exports | Balance |
|---|---|---|---|
| Arizona | $39.3M | $27.1M | -$12.2M |
| Utah | -- | $12.6M | +$12.6M |
| Pennsylvania | $9.6M | -- | -$9.6M |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| LOS ANGELES, CA | $44.1M | $10.6M | -$33.5M |
| HOUSTON, TX | -- | $32.1M | +$32.1M |
| DOUGLAS, AZ | $4.6M | $8.8M | +$4.1M |