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HSChapter 29
U.S. imports of imides and their derivatives (excluding saccharin) (HS 292519) totaled $3.4M in July 2026, traded with 19 countries.
Importers of Imides and Their Derivatives (Excluding Saccharin) paid $248K in duties in July 2026 — an effective duty rate of 8.1% on $3.1M in dutiable value, based on actual customs collections rather than the published tariff schedule. Imides and Their Derivatives (Excluding Saccharin) imports of $3.4M in July 2026 ran 25% below the year-to-date monthly average of $4.6M.
Last updated: July 2026 dataAromatic and non-aromatic imide derivatives excluding saccharin serve as intermediates across pharmaceuticals, flame retardants, and specialty polymer applications — distinctions that drive the US schedule's split into five separate 10-digit lines. Ethylenebistetrabromphthalimide (2925191000) is a brominated flame retardant subject to scrutiny under EPA chemical review programs, while aromatic imides (2925194200) and non-aromatic imides (2925199100) carry different duty treatment. The United Kingdom leads supply, with China, Japan, and India also significant sources. Aromatic lines produced by US manufacturers may be subject to additional domestic-industry note provisions.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
60 shipments/mo
Classification hinges on whether the imide functional group is attached to an aromatic ring system. Compounds with a benzene or naphthalene ring directly bonded to the imide nitrogen fall under the aromatic lines (e.g., 2925194200), while aliphatic-chain imides fall under the non-aromatic line (2925199100). When the structure is ambiguous, a binding ruling from CBP is advisable.
Ethylenebistetrabromphthalimide and other brominated flame retardants may be subject to TSCA Section 5 or Section 8 reporting obligations depending on their production volume and use. Importers should verify current TSCA inventory status and any applicable Significant New Use Rules before entry.
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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 |
|---|---|---|---|---|---|
| 2925199100 | Other Non-Aromatic Imides and Their Derivatives | $1.8M | 6.26% | 99.80% | $111K |
| 2925194200 | Aromatic Imides and Their Derivatives, NESOI | $1.3M | 7.45% | 71.33% | $97K |
| 2925191000 | Ethylenebistetrabromphthalimide | $204K | 11.94% | 100.00% | $24K |
| 2925193000 | Bis(O-Tolyl) Carbodiimide; Etc. | $161K | 10.00% | 100.00% | $16K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2925190100 | Imides and Their Derivatives (Exc Saccharine) Etc | $2.2M |
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
$3.4MYoY · Pro
Exports
$2.2MYoY · Pro
12-mo low · imports
YoY · ProThrough July 2026. Source: U.S. Census Bureau.
Imports · July 2026
origin
United Kingdom and China together supply 47% of it.
customs district
destination
entry
rate provision · imports
1.2% enters free of duty; the effective duty rate is 7.22%.