HS Code 29021910
Cyclopentane
Worked example
On an assessable value of BDT 100,000, the total duty and taxes payable on 29021910 would be approximately BDT 39,750.00, because the Total Tax Incidence is 39.75% of the assessable value.
What these figures mean
Cyclopentane is classified under HS code 29021910, which sits in heading 2902 (Cyclic 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
Between December 2025 and May 2026, NBR recorded commercial imports under 29021910 in 6 of 6 months, totalling 842,270 kg at an assessable value of BDT 253,586,015. That is an average of BDT 301 per kilogram — useful as a rough check on whether a declared value looks plausible. In May 2026 it was the 969th largest of 4,066 tariff lines by assessable value.
| Month | Net weight | Assessable value | Per kg |
|---|---|---|---|
| December 2025 | 115,920 kg | BDT 40,644,942 | BDT 351 |
| January 2026 | 169,740 kg | BDT 59,454,565 | BDT 350 |
| February 2026 | 83,500 kg | BDT 29,271,883 | BDT 351 |
| March 2026 | 133,970 kg | BDT 49,930,694 | BDT 373 |
| April 2026 | 222,390 kg | BDT 46,528,360 | BDT 209 |
| May 2026 | 116,750 kg | BDT 27,755,571 | BDT 238 |
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%, 29021910 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.
Within heading 2902 alone, rates run from 23.25% to 45.88% across 14 lines. Classification inside a single heading can change the bill substantially, so confirm the eight-digit code rather than working from the four-digit heading.
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.