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HSChapter 29
U.S. imports of styrene (vinylbenzene) (HS 290250) totaled $18.5M in April 2026, traded with 4 countries.
Styrene (Vinylbenzene) imports of $18.5M in April 2026 ran 22% above the year-to-date monthly average of $15.2M.
Last updated: April 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.
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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Monthly import values over time
| Country | Imports | Exports | Balance |
|---|---|---|---|
| MEXICO | -- | $72.0M | +$72.0M |
| BELGIUM | -- | $37.7M | +$37.7M |
| BRAZIL | -- | $28.5M | +$28.5M |
| NETHERLANDS | $9K | $28.4M | +$28.4M |
| CANADA | $18.5M | $5.7M | -$12.8M |
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 2902500000 | STYRENE | $18.5M | 19.38% | $4K |
STYRENE
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2902500000 | STYRENE (VINYLBENZENE; PHENYLETHYLENE) | $187.8M |
STYRENE (VINYLBENZENE; PHENYLETHYLENE)
145.1M kg
NUCLEIC ACIDS & SALTS; OTHER HETEROCYCLIC CMP, NES
HS 293499
HETEROCYCLIC COMP W NITROGEN HETERO-ATM ONLY NESOI
HS 293399
POLYPEPTIDE PROTEIN& GLYCOPROTEIN HORMONES &DERIV
HS 293719
CMPDS CONT AN UNFUSED PYRIDINE RING ETC NESOI
HS 293339
COMP WITH PYRIMIDINE OR PIPERAZINE RING, NESOI
HS 293359
ANTIBIOTICS, NESOI
HS 294190
| Port | Imports | Exports | Balance |
|---|---|---|---|
| HOUSTON, TX | -- | $105.2M | +$105.2M |
| BATON ROUGE, LA | -- | $24.0M | +$24.0M |
| TEXAS CITY, TX | -- | $21.6M | +$21.6M |