HS Heading 2839
Silicates; commercial alkali metal silicates
4 tariff lines in this heading, within chapter 28 (Inorganic chemicals; compounds of precious metals, rare-earth metals, radioactive elements or isotopes). Click any HS code for the full breakdown and a duty calculation.
| HS Code | Description | CD | SD | VAT | AIT | RD | AT | TTI |
|---|---|---|---|---|---|---|---|---|
| 28391100 | Sodium Metasilicates | 10 | 0 | 15 | 5 | 0 | 7.5 | 39.75% |
| 28391900 | Other Silicates And Com. Alkali Metal Silicates,Of Sodium (Ex.Metasilicate | 10 | 0 | 15 | 5 | 0 | 7.5 | 39.75% |
| 28399010 | Silicates; commercial alkali metal silicates Of potassium | 10 | 0 | 15 | 5 | 0 | 7.5 | 39.75% |
| 28399090 | Silicates; commercial alkali metal silicates, nes | 10 | 0 | 15 | 5 | 0 | 7.5 | 39.75% |
Recorded imports
Between December 2025 and May 2026, NBR recorded commercial imports worth BDT 542,437,611 (4,386,736 kg) under this heading, across 4 of its 4 tariff lines.
| Month | Lines with imports | Net weight | Assessable value |
|---|---|---|---|
| December 2025 | 4 | 492,376 kg | BDT 78,046,986 |
| January 2026 | 4 | 760,031 kg | BDT 70,931,391 |
| February 2026 | 4 | 594,672 kg | BDT 94,758,159 |
| March 2026 | 4 | 771,660 kg | BDT 149,033,634 |
| April 2026 | 4 | 661,646 kg | BDT 72,575,045 |
| May 2026 | 4 | 1,106,351 kg | BDT 77,092,396 |
The largest lines by assessable value in May 2026:
- 28399090 — Silicates; commercial alkali metal silicates, nes — BDT 37,863,912
- 28391100 — Sodium Metasilicates — BDT 18,763,742
- 28391900 — Other Silicates And Com. Alkali Metal Silicates,Of Sodium (Ex.Metasilicate — BDT 15,369,383
- 28399010 — Silicates; commercial alkali metal silicates Of potassium — BDT 5,095,359
Bonded imports. A further BDT 30,348,475 (919,880 kg) entered under the bonded-warehouse regime over the same months — duty-free inputs imported against an undertaking to re-export them. That is 5.3% of the total value imported under this heading.
Import figures: NBR Import Statements (IM-4 commercial, IM-7 bonded), December 2025 – May 2026. Assessable value is the customs value on which duty is charged, not the retail or invoice price.