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Subheading 2 of 9 in heading 2825
Subheading 282590 · $20.7M of $85.6M
U.S. exports of inorganic bases, metal oxides, hydroxides & peroxides (nesoi) (HS 282590) totaled $52.7M in July 2026.
Importers of Inorganic Bases, Metal Oxides, Hydroxides & Peroxides (NESOI) paid $1.3M in duties in July 2026 — an effective duty rate of 7.4% on $17.8M in dutiable value, based on actual customs collections rather than the published tariff schedule. Inorganic Bases, Metal Oxides, Hydroxides & Peroxides (NESOI) imports of $20.7M in July 2026 ran 39% above the year-to-date monthly average of $14.9M.
Last updated: July 2026 dataThis residual heading captures a diverse set of inorganic metal compounds not covered by more specific headings in Chapter 28, including beryllium oxide and hydroxide (2825901000), niobium oxide (2825901500), tin oxides (2825902000), tungsten oxides (2825903000), cadmium oxide (2825907500), and a broad catch-all line (2825909000) for other inorganic bases, metal oxides, and peroxides. Turkey, Brazil, and Vietnam lead US import supply across the heading, though the supplier mix varies significantly by specific compound. Correct classification within this heading requires careful identification of the metal and its oxidation state, as misclassification between the named lines and the NESOI catch-all can affect duty liability. Beryllium compounds warrant particular attention given OSHA occupational exposure regulations that apply to downstream handlers.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
117 shipments/mo
Classification follows a hierarchy: if the metal oxide is specifically named in one of the dedicated 10-digit lines — beryllium (2825901000), niobium (2825901500), tin (2825902000), tungsten (2825903000), or cadmium (2825907500) — it must be classified there rather than in the NESOI line (2825909000). The NESOI line is reserved for metal oxides, hydroxides, and peroxides that are not covered by any of the named subheadings. A certificate of analysis identifying the specific metal and compound form is essential.
Beryllium oxide (BeO) is not subject to a mandatory admissibility review at the port of entry in the same way as food or agricultural products, but it is a highly toxic material regulated by OSHA under the beryllium standard (29 CFR 1910.1024). Importers and downstream users must maintain appropriate safety data sheets and exposure control programs. Some end-use applications in nuclear and defense sectors may also be subject to export control or end-user certificate requirements in the country of origin.
HSChapter 28
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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 |
|---|---|---|---|---|---|
| 2825903000 | Tungsten Oxides | $9.9M | 4.21% | 76.62% | $417K |
| 2825909000 | Other Inorganic Bases,Metal Oxides,Peroxides NESOI | $7.6M | 9.90% | 95.67% | $749K |
| 2825901500 | Niobium Oxide | $2.6M | 3.67% | 99.20% | $97K |
| 2825902000 | Tin Oxides | $541K | 7.92% | 55.81% | $43K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2825900002 | Inorganic Bases; Metal Oxides, Hydrox, Perox NESOI | $52.7M |
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.
ImportsExports
Imports
$20.7MYoY · Pro
Exports
$52.7MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Exports · July 2026
destination
Luxembourg and Japan together take 58% of it.
customs district
origin
entry
rate provision · imports
15.6% enters free of duty; the effective duty rate is 6.32%.