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HSChapter 40
U.S. imports of styrene-butadiene rubber (sbr / xsbr) in primary forms, excluding latex (HS 400219) totaled $50.0M in April 2026, traded with 26 countries.
Importers of Styrene-Butadiene Rubber (SBR / XSBR) in Primary Forms, Excluding Latex paid $3.8M in duties in April 2026 — an effective duty rate of 10% on $37.1M in dutiable value, based on actual customs collections rather than the published tariff schedule. Styrene-Butadiene Rubber (SBR / XSBR) in Primary Forms, Excluding Latex imports of $50.0M in April 2026 ran 10% above the year-to-date monthly average of $45.3M.
Last updated: April 2026 dataSolid and semi-solid SBR — including emulsion-polymerized E-SBR, solution-polymerized S-SBR, and styrene-butadiene-styrene (SBS) block copolymers — is the dominant synthetic rubber in passenger tire treads and a key input for footwear, belting, and asphalt modification. South Korea leads US imports, followed by Mexico and Germany. The US schedule is notably granular: S-SBR in bales (4002191600), SBS thermoplastic elastomer granules and crumbs (4002191400), E-SBR with ≤50% styrene (4002190015), and higher-styrene variants (4002190020) each carry separate lines, making precise polymer type and styrene content critical classification inputs. S-SBR's superior wet-grip and rolling-resistance profile has driven its adoption in high-performance tire compounds, creating distinct demand patterns from commodity E-SBR.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
The US schedule draws a key line at 50% styrene by weight of dry polymer. E-SBR at or below 50% styrene falls under 4002190015, while SBR exceeding 50% styrene is classified under 4002190020. S-SBR in bales has its own dedicated line (4002191600) regardless of styrene content. Suppliers should provide a certificate of analysis confirming styrene percentage to support the correct classification.
SBS (styrene-butadiene-styrene) block copolymers are thermoplastic elastomers — they behave as rubber at service temperatures but can be melt-processed like thermoplastics — whereas conventional SBR is a thermoset-processable random copolymer. The 4002191400 line specifically covers SBS in granule, crumb, or similar forms used in asphalt modification, adhesives, and footwear soles. Importers should confirm the block vs. random copolymer architecture in supplier technical data sheets to avoid misclassification.
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Monthly import values over time
| Country | Imports | Exports | Balance |
|---|---|---|---|
| MEXICO | $12.9M | $7.1M | -$5.8M |
| KOREA, SOUTH | $16.2M | $355K | -$15.8M |
| CANADA | $17K | $7.6M | +$7.6M |
| GERMANY | $6.3M | $865K | -$5.5M |
| BRAZIL | $278K | $5.1M | +$4.9M |
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 4002190014 | STYRENE-BUTADIENE-STYRENE BLOCK COPOLYMERS | $28.8M | 10.05% | $2.2M |
| 4002190016 | S-SBR IN BALES | $13.5M | 10.00% | $1.1M |
| 4002190019 | SBR CONT LT=50% STYRENE BY WT OF DRY POLYMER NESOI | $3.8M | 11.96% | $447K |
| 4002190015 | E-SBR CONT LT=50% STYRENE BY WT OF DRY POLYMER | $3.8M | 10.00% | $35K |
| 4002190020 | STYRENE-BUTADI RUB GT 50% STYRENE BY WT DRY POLYMR | $255K | 19.23% | $42K |
STYRENE-BUTADIENE-STYRENE BLOCK COPOLYMERS
S-SBR IN BALES
SBR CONT LT=50% STYRENE BY WT OF DRY POLYMER NESOI
E-SBR CONT LT=50% STYRENE BY WT OF DRY POLYMER
STYRENE-BUTADI RUB GT 50% STYRENE BY WT DRY POLYMR
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 4002199000 | SBR OR XSBR, EXCLUDING LATEX, NESOI | $21.0M |
| 4002191600 | S-SBR, IN BALES | $8.9M |
| 4002191400 | SBS, THERMOPLASTIC ELASTOMERS GRANULES, CRUMBS ETC | $5.6M |
SBR OR XSBR, EXCLUDING LATEX, NESOI
8.0M kg
S-SBR, IN BALES
3.4M kg
SBS, THERMOPLASTIC ELASTOMERS GRANULES, CRUMBS ETC
2.5M kg
NEW PNEUMATIC TIRES OF RUBBER, FOR MOTOR CARS
HS 401110
NEW PNEUMATIC TIRES OF RUBBER, FOR BUSES OR TRUCKS
HS 401120
GASKET, WASHERS & OTHER SEALS, OF VULCANIZED RUB
HS 401693
ARTICLES OF SOFT VULCANIZED RUBBER NESOI
HS 401699
MEDICAL/SURGICAL/DENTAL/VET GLOVES, MITTENS, MITTS
HS 401512
NEW PNEUMATIC TIRES OF RUBBER, NESOI
HS 401190
| Port | Imports | Exports | Balance |
|---|---|---|---|
| HOUSTON, TX | $8.1M | $15.9M | +$7.8M |
| BROWNSVILLE, TX | $12.9M | -- | -$12.9M |
| LOS ANGELES, CA | $5.9M | $235K | -$5.6M |