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BUTA-1,3-DIENE AND ISOPRENE
U.S. imports of buta-1, 3-diene and isoprene (HS 290124) totaled $30.8M in December 2025, a 4.3% increase from the previous year. KOREA, SOUTH is the top supplier (46%), followed by NETHERLANDS (29%) and CANADA (17%).
Total Import Value
$30,753,126
YTD Imports
$441.8M
Source Countries
11
CIF Value
$34.1M
Duty Collected
$1.1M
Air Freight
$0
Vessel
$25.5M
Container
$3.3M
Monthly import values over time
Top source countries by import value
| # | Country | Share | Import Value | CIF Value | Air | Vessel |
|---|---|---|---|---|---|---|
| 1 | KOREA, SOUTH | 100% | $14.1M | $15.1M | $0 | $14.1M |
| 2 | NETHERLANDS | 64% | $9.0M | $11.2M | $0 | $9.0M |
| 3 | CANADA | 37% | $5.3M | $5.3M | $0 | $0 |
| 4 | BRAZIL | 14% | $2.0M | $2.0M | $0 | $2.0M |
| 5 | JAPAN | 3% | $366K | $390K | $0 | $366K |
| 6 | SAUDI ARABIA | 0% | $0 | $0 | $0 | $0 |
| 7 | SINGAPORE | 0% | $0 | $0 | $0 | $0 |
| 8 | CHINA | 0% | $0 | $0 | $0 | $0 |
| 9 | SWITZERLAND | 0% | $0 | $0 | $0 | $0 |
| 10 | TAIWAN | 0% | $0 | $0 | $0 | $0 |
$14.1M
$15.1M
$0
$14.1M
$9.0M
$11.2M
$0
$9.0M
$5.3M
$5.3M
$0
$0
$2.0M
$2.0M
$0
$2.0M
$366K
$390K
$0
$366K
$0
$0
$0
$0
$0
$0
$0
$0
$0
$0
$0
$0
$0
$0
$0
$0
$0
$0
$0
$0