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HSChapter 85
U.S. imports of solid-state non-volatile semiconductor storage devices (HS 852351) totaled $7.1B in July 2026, traded with 60 countries.
Importers of Solid-State Non-Volatile Semiconductor Storage Devices paid $8.5M in duties in July 2026 — an effective duty rate of 8.8% on $96.3M in dutiable value, based on actual customs collections rather than the published tariff schedule. Solid-State Non-Volatile Semiconductor Storage Devices imports of $7.1B in July 2026 ran 46% above the year-to-date monthly average of $4.9B.
Last updated: July 2026 dataSolid-state drives, NAND flash modules, eMMC components, and other non-volatile semiconductor storage devices — the backbone of modern computing, mobile, and enterprise storage infrastructure — enter under a single tariff line, 8523510000. South Korea and Taiwan dominate US supply, anchored by the global NAND flash manufacturing capacity of firms headquartered in those countries, with Vietnam and Malaysia serving as significant assembly and packaging locations. Goods of Chinese origin in this category may be subject to Section 301 tariffs, and importers sourcing through intermediary countries should maintain robust origin documentation to withstand CBP scrutiny on substantial transformation claims.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
9.3K shipments/mo
CBP applies the substantial transformation test. Assembly of NAND flash chips onto a printed circuit board and integration into a finished SSD enclosure has generally been found to constitute a substantial transformation in the country of final assembly, making Vietnam the country of origin in that scenario. However, the specific operations performed and the degree of value added matter; importers should obtain a detailed manufacturing process description and consider requesting a binding ruling from CBP if origin is uncertain.
Solid-state storage devices of Chinese origin may be subject to Section 301 tariffs. Importers should verify the current tariff list coverage and any applicable exclusions through USTR's published guidance, as the scope and exclusion status of Section 301 measures have been revised multiple times. Given the complex, multi-country supply chains typical in semiconductor storage, origin determination is a recurring compliance focus.
Subheading 1 of 8 in heading 8523
Subheading 852351 · $7.1B of $7.2B
ImportsExports
Imports
$7.1BYoY · Pro
Exports
$1.6BYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Imports · July 2026
origin
Korea, South and Taiwan together supply 42% of it.
customs district
destination
entry
rate provision · imports
77.8% enters free of duty; the effective duty rate is 0.12%.
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 |
|---|---|---|---|---|---|
| 8523510000 | Solid-State Non-Volatile Storage Devices | $7.1B | 0.12% | 1.36% | $8.5M |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8523510000 | Solid-State Non-Volatile Storage Devices | $1.6B |
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.
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