HS Code 29012400
Buta-1,3-Diene And Isoprene
Worked example
On an assessable value of BDT 100,000, the total duty and taxes payable on 29012400 would be approximately BDT 39,750.00, because the Total Tax Incidence is 39.75% of the assessable value.
What these figures mean
Buta-1,3-Diene And Isoprene is classified under HS code 29012400, which sits in heading 2901 (Acyclic hydrocarbons) of chapter 29 (Organic chemicals).
Under the Bangladesh Operative Tariff 2026-2027 this line attracts Customs Duty of 10%, Supplementary Duty of 0%, VAT of 15%, Advance Income Tax of 5%, Regulatory Duty of 0% and Advance Tax of 7.5%. Combined, these produce a Total Tax Incidence of 39.75%, which is the figure to multiply by the assessable value of your consignment.
The assessable value is normally the CIF value of the goods plus landing charges. Duties and taxes are applied in a defined order rather than simply added together, which is why the TTI is not the plain sum of the individual rates.
Recorded imports
NBR recorded no commercial imports under 29012400 between December 2025 and May 2026. That is not unusual — roughly a third of the 7,469 lines in the schedule saw no commercial import in that window. Goods may still have entered under a bonded-warehouse regime, or been declared under a neighbouring code.
Import figures: NBR Import Statements (IM-4 commercial), December 2025 – May 2026. Assessable value is the customs value on which duty is charged, not the retail or invoice price.
Source: NBR Operative Tariff 2026-2027. The full schedule was reconciled against NBR's online duty calculator before publication; figures were last checked against NBR's live operative tariff search on 10 October 2026.
How this line compares
Chapter 29 contains 491 tariff lines, averaging 36.78%. At 39.75%, 29012400 sits above that average by 2.97 percentage points. It is the 26th most heavily taxed line in the chapter.
Across the whole Operative Tariff the mean is 61.08%, so this line is cheaper than the typical import by 21.33 points.
No supplementary duty applies here, which is the normal case — SD is zero on 78% of the tariff. Where it does apply it usually dominates every other component.