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HSChapter 72
U.S. imports of ferromolybdenum (HS 720270) totaled $16.9M in July 2026, traded with 9 countries.
Importers of Ferromolybdenum paid $1.4M in duties in July 2026 — an effective duty rate of 11% on $13.4M in dutiable value, based on actual customs collections rather than the published tariff schedule. Ferromolybdenum imports of $16.9M in July 2026 ran 36% below the year-to-date monthly average of $26.5M.
Last updated: July 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.
31 shipments/mo
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.
Subheading 6 of 15 in heading 7202
Subheading 720270 · $16.9M of $229.1M
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ImportsExports
Imports
$16.9MYoY · Pro
Exports
$333KYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Imports · July 2026
origin
Chile and Mexico together supply 78% of it.
customs district
destination
entry
rate provision · imports
17.3% enters free of duty; the effective duty rate is 8.51%.
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 |
|---|---|---|---|---|---|
| 7202700000 | Ferromolybdenum | $16.9M | 8.51% | 79.66% | $1.4M |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 7202700000 | Ferromolybdenum | $333K |
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.