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HSChapter 29
U.S. exports of styrene (vinylbenzene) (HS 290250) totaled $115.1M in July 2026.
Styrene (Vinylbenzene) imports of $8.8M in July 2026 ran 39% below the year-to-date monthly average of $14.4M.
Last updated: July 2026 dataStyrene — also known as vinylbenzene or phenylethylene — is a foundational monomer for polystyrene, ABS resins, styrene-butadiene rubber, and a wide range of polymer products used in packaging, construction, and automotive manufacturing. Classified under a single tariff line (2902500000), bulk styrene imports are subject to EPA TSCA certification at entry. Canada is the leading supplier to the US market, with China and the Netherlands also among notable sources. Given China's presence in the supply base, importers should monitor whether any Section 301 trade remedy measures apply to specific shipments.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
81 shipments/mo
Styrene (HTS 2902500000) originating from China may be subject to Section 301 tariffs. Importers should verify the current status of applicable trade remedy measures with a licensed customs broker or by consulting the USTR's Section 301 product lists, as coverage and rates can change.
Purity level (typically 99.5%+ for polymer-grade styrene), inhibitor content (usually 10–15 ppm tert-butylcatechol to prevent premature polymerization during transit), and color (APHA value) are the primary specifications. Polymer-grade versus industrial-grade designations can affect both pricing and end-use suitability, though they do not alter the HTS classification.
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Subheading 4 of 12 in heading 2902
Subheading 290250 · $8.8M of $166.9M
ImportsExports
Imports
$8.8MYoY · Pro
Exports
$115.1MYoY · 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 |
|---|---|---|---|---|
| 2902500000 | Styrene | $8.8M | 0.00% | 0.14% |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2902500000 | Styrene (Vinylbenzene; Phenylethylene) | $115.1M |
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.
Exports · July 2026
destination
Mexico and Colombia together take 81% of it.
customs district
origin
entry
rate provision · imports
99.9% enters free of duty; the effective duty rate is 0.00%.