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HSChapter 72
U.S. imports of ferromolybdenum (HS 720270) totaled $47.1M in April 2026, traded with 8 countries.
Importers of Ferromolybdenum paid $3.0M in duties in April 2026 — an effective duty rate of 9.1% on $32.4M in dutiable value, based on actual customs collections rather than the published tariff schedule. Ferromolybdenum imports of $47.1M in April 2026 ran 68% above the year-to-date monthly average of $28.0M.
Last updated: April 2026 dataMolybdenum's role as a solid-solution strengthener and corrosion inhibitor in high-strength low-alloy (HSLA), tool, and stainless steels makes ferromolybdenum a strategically important ferroalloy for the specialty steel and oil-country tubular goods sectors. Entering under a single tariff line (7202700000), it is produced primarily by roasting molybdenite concentrates, and Chile — the world's largest molybdenum mining country — leads US import supply. South Korea is also a notable source, reflecting its integrated steel and ferroalloy processing capacity. Price volatility in this market is closely tied to molybdenite byproduct output from copper mining operations.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
A large share of global molybdenum supply comes as a byproduct of copper mining, meaning output levels are partly driven by copper market conditions rather than molybdenum demand alone. When copper mine production slows, molybdenite byproduct volumes fall, tightening ferromolybdenum supply independently of steel sector demand.
Most steel producers require ferromolybdenum with a molybdenum content of at least 60–65% by weight, with strict limits on phosphorus, sulfur, copper, and tin. These impurities can degrade the mechanical properties of the finished steel, so purchase contracts routinely specify maximum levels and require a certified mill analysis with each shipment.
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Monthly import values over time
| Country | Imports | Exports | Balance |
|---|---|---|---|
| CHILE | $26.0M | -- | -$26.0M |
| KOREA, SOUTH | $15.1M | -- | -$15.1M |
| CANADA | -- | $5.3M | +$5.3M |
| BELGIUM | $2.6M | -- | -$2.6M |
| UNITED KINGDOM | $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 |
|---|---|---|---|---|
| 7202700000 | FERROMOLYBDENUM | $47.1M | 9.12% | $3.0M |
FERROMOLYBDENUM
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 7202700000 | FERROMOLYBDENUM | $5.3M |
FERROMOLYBDENUM
120.4K kg
NONALLOY PIG IRON 0.5 PRCNT OR LESS PHOSPHORUS
HS 720110
SEMIFINISHED PRODUCTS OF ALLOY STEEL NOT STAINLESS
HS 722490
SMFD IRN/NAL STL LT .25 PCT CRB RECT CS WID 2X THK
HS 720712
FR IOS NAL 600MM AO W TIN CTD OR PLTD UNDR 0.5MM T
HS 721012
FERROUS WASTE & SCRAP NESOI, TURNINGS, CHIPS ETC
HS 720441
FERROUS WASTE & SCRAP NESOI
HS 720449
| Port | Imports | Exports | Balance |
|---|---|---|---|
| BALTIMORE, MD | $44.2M | -- | -$44.2M |
| CAMBRIDGE, MD | -- | $2.7M | +$2.7M |
| DETROIT, MI | $1.5M | $55K | -$1.5M |