HSChapter 73
U.S. imports of iron & steel towers and lattice masts (HS 730820) totaled $52.3M in July 2026, traded with 24 countries.
Importers of Iron & Steel Towers and Lattice Masts paid $16.9M in duties in July 2026 — an effective duty rate of 32% on $52.2M in dutiable value, based on actual customs collections rather than the published tariff schedule. Iron & Steel Towers and Lattice Masts imports of $52.3M in July 2026 ran 28% below the year-to-date monthly average of $72.3M.
Last updated: July 2026 dataTowers and lattice masts of iron or steel encompass transmission line towers, telecommunications masts, and — critically — tubular wind turbine towers, which have their own dedicated 10-digit line (7308200035) reflecting the sector's trade significance. Denmark and Germany lead US imports under this heading, consistent with their dominant roles in wind energy equipment manufacturing. Wind turbine towers have been subject to antidumping and countervailing duty investigations, making origin verification and scope rulings a recurring compliance issue for energy developers. Section 232 tariffs also apply to these steel structures, compounding the duty exposure for large-scale renewable energy procurements.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
141 shipments/mo
Yes. Utility-scale wind towers have been the subject of antidumping and countervailing duty orders covering certain countries of origin. Importers should check the current scope of any active orders with CBP or the International Trade Commission before sourcing, as scope rulings can affect whether a specific tower design and origin combination is covered.
Tubular towers are hollow cylindrical or conical steel sections stacked to form a self-supporting column, as used in wind turbines and some telecom applications. Lattice masts are open-frame structures assembled from angle, bar, or tube members. The US schedule provides separate lines for tubular towers (including wind turbine towers) and a residual line for other towers and lattice masts, so the structural form of the article determines the correct 10-digit code.
Subheading 2 of 5 in heading 7308
Subheading 730820 · $52.3M of $461.0M
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ImportsExports
Imports
$52.3MYoY · Pro
Exports
$1.3MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
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 |
|---|---|---|---|---|---|
| 7308200035 | Tubular Wind Turbine Towers of Iron or Steel | $27.2M | 49.98% | 99.95% | $13.6M |
| 7308200030 | Towers and Lattice Masts of Iron or Steel, Tubular | $18.3M | 0.94% | 100.00% | $171K |
| 7308200090 | Towers and Lattice Masts of Iron or Steel, NESOI | $6.9M | 46.59% | 98.70% | $3.2M |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 7308200000 | Towers and Lattice Masts of Iron or Steel | $1.3M |
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 · July 2026
origin
Germany and Portugal together supply 66% of it.
customs district
destination
entry
rate provision · imports
0.2% enters free of duty; the effective duty rate is 32.41%.