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SITCSection 7
U.S. imports of parts & accessories for semiconductor boule, wafer & ic manufacturing machines (n.e.s.) (SITC 72829) totaled $415.5M in April 2026, traded with 51 countries.
Importers of Parts & Accessories for Semiconductor Boule, Wafer & IC Manufacturing Machines (N.E.S.) paid $11.3M in duties in April 2026 — an effective duty rate of 33% on $34.2M in dutiable value, based on actual customs collections rather than the published tariff schedule. Parts & Accessories for Semiconductor Boule, Wafer & IC Manufacturing Machines (N.E.S.) imports of $415.5M in April 2026 ran 10% above the year-to-date monthly average of $376.9M.
Last updated: April 2026 dataReplacement and upgrade components for wafer fab equipment — such as quartz process tubes, electrostatic chucks, gas delivery manifolds, and robot end-effectors — are captured under SITC 72829 when they are dedicated to the machines covered by the semiconductor manufacturing equipment headings and are not specified elsewhere. Classification as a 'part' rather than a standalone machine requires demonstrating that the item has no independent commercial function outside the parent equipment. Because these components often carry the same BIS export control sensitivities as the machines they serve, end-use and end-user screening remains important even for spare parts transactions.
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Generally, no. Customs classification as a part requires that the item be suitable for use solely or principally with the parent machine. If a component has broad independent commercial utility — for example, a vacuum pump sold across many industries — it would typically be classified under its own heading rather than as a part of semiconductor manufacturing equipment.
Yes. BIS export controls follow the technical characteristics of the item, not its commercial role as a 'spare part.' A controlled component retains its ECCN regardless of whether it is shipped as original equipment or as a replacement part, so the same license determination process applies to both.
| Country | Imports | Exports | Balance |
|---|---|---|---|
| NETHERLANDS | $73.6M | $117.8M | +$44.2M |
| KOREA, SOUTH | $46.7M | $133.4M | +$86.7M |
| JAPAN | $129.5M | $42.7M | -$86.8M |
| TAIWAN | $19.0M | $107.2M | +$88.2M |
| SINGAPORE | $24.5M | $100.4M | +$75.9M |
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Monthly import values over time