Subheading · Chapter 28 · Section VI, Products of the chemical or allied industries
HS 2837 20Complex cyanides
Inorganic chemicals, organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes › Cyanides, cyanide oxides and complex cyanides
- Customs duty
- 7.5%
- 6 tariff items
- GST now
- 5% or 18%
- depending on the goods
- Import policy
- Free
- Export policy
- Free
- Unit
- kg
- Duty in China
- 5%
- On Indian goods
Codes under this subheading
6 codes. Duty and GST are set on the 8-digit tariff items; open the one that describes your goods.
| Code | Description | Customs duty | GST now | Unit |
|---|---|---|---|---|
| 2837 20 10 | Ammonium sulphocyanide | 7.5% | 5% or 18% | kg |
| 2837 20 20 | Potassium ferricyanide | 7.5% | 5% or 18% | kg |
| 2837 20 30 | Potassium ferrocyanide | 7.5% | 5% or 18% | kg |
| 2837 20 40 | Sodium ferrocyanide | 7.5% | 5% or 18% | kg |
| 2837 20 50 | Sodium nitroprusside (sodium nitroferricyanide) | 7.5% | 5% or 18% | kg |
| 2837 20 90 | Other | 7.5% | 5% or 18% | kg |
Importing into India
Duty is set on each 8-digit tariff item: open one of the codes above. Basic customs duty across its 6 tariff items: 7.5%. The rules below cover this whole code.
Anti-dumping, countervailing and safeguard duty in force
- Anti-dumping duty on goods from China, European Union, Japan and South Korea: USD 13–554 per tonne, by origin and producer (until 26 Jun 2029). Sodium Cyanide. 10/2024-ADD
Charged on top of the duty above, only on goods from the countries named.
Import policy (DGFT ITC(HS)) of its tariff items
- Free: 6 tariff items
GST
IGST on imports is the GST rate. Rates changed on 22 September 2025.
- Now 5% or 18%, depending on the goods.
- Until 21 September 2025 5%, 12% or 18%, depending on the goods.
- Change: Changed.
The rules that set it now
| Notification | Goods | Rate |
|---|---|---|
| 9/2025-Integrated Tax (Rate)Schedule I, S.No. 210 | Thorium oxalate, Enriched KBF4 (enriched potassium fluroborate), Enriched elemental boron, Nuclear fuel | 5% |
| 9/2025-Integrated Tax (Rate)Schedule I, S.No. 211 | Anaesthetics, Potassium Iodate, Iodine, Steam | 5% |
| 9/2025-Integrated Tax (Rate)Schedule I, S.No. 221 | Micronutrients, which are covered under serial number 1(g) of Schedule 1, Part (A) of the Fertilizer Control Order, 1985 and are manufactured by the manufacturers which are registered under the Fertilizer Control Order, 1985 | 5% |
| 9/2025-Integrated Tax (Rate)Schedule II, S.No. 35 | All inorganic chemicals [other than those specified in notification No.10/2025- Central Tax (Rate) dated 17th September 2025 or other Schedules of this notification] | 18% |
History
| Period | Rate | Notification |
|---|---|---|
| Until 21 Sep 2025 | 5%, 12% or 18% | 1/2017-Central Tax (Rate) |
| From 22 Sep 2025 | 5% or 18% | 9/2025-Integrated Tax (Rate) |
Exporting from India
Export duty
Nil. The Second Schedule to the Customs Tariff Act does not list these goods, so no export duty is charged.
Duty drawback (All Industry Rates)
| Drawback item | Goods | Rate | Cap |
|---|---|---|---|
| 2837 | Cyanides, cyanide oxides and complex cyanides | 1% | — |
Drawback items follow the 4-digit heading, not the 8-digit code: claim the one that describes your goods. Rates of notification 77/2023-Customs (N.T.) as amended, in force on 19 Oct 2026.
Export policy (DGFT ITC(HS) Schedule 2) of its tariff items
- Free: 6 tariff items
What buyers pay abroad: import duty in the US, UK, EU and Australia for 2837 20, and China's below.
China: the same goods (2837 20)
China shares the first 6 digits with India and splits them into 10-digit codes of its own: 1 in force and 3 expired under 2837 20. Exporters see what China charges Indian goods; importers see the rebate and licences their Chinese supplier deals with.
| China code | Goods | Duty on Indian goods | MFN | Import VAT | Export rebate | Licences |
|---|---|---|---|---|---|---|
| 2837.20.00.00 | Cyano complexes氰络合物 | 5%MFN rate (no APTA concession on this line) | 5% | 13% | 0% | None |
- India is a member of the Asia-Pacific Trade Agreement (APTA). With an APTA certificate of origin, Indian goods pay China's APTA rate where the line has one; China applies the lower of that and its provisional rate.
- The export VAT rebate is what China refunds its own exporters. When China cuts it, Chinese export prices tend to rise.
Every Chinese code in full
2837.20.00Cyano complexes
2837.20.00.00Cyano complexes氰络合物
Potassium nickel cyanide, nickel potassium cyanide, copper salts氰化钾镍,镍氰化钾,铜盐
- Unit
- kg
- MFN import duty
- 5%
- Provisional import duty
- None
- General import duty
- 30%
- Import VAT
- 13%
- Consumption tax
- 0%
- Export duty
- 0%
- Provisional export duty
- None
- Export VAT rebate
- 0%
- Updated by China
- 7 Sep 2026
Licences and certificates
None.
Inspection and quarantine
None.
What the customs declaration must state
- 0.Brand type品牌类型
- 1.Export preferential status出口享惠情况
- 2.Ingredient content成分含量
- 3.Packing specifications包装规格
- 4.GTIN
- 5.CAS
- 6.Other其他
China's agreement rates
- ASEAN
- 0%
- Chile
- 0%
- Pakistan
- 0%
- New Zealand
- 0%
- Peru
- 0%
- Costa Rica
- 0%
- Switzerland
- 0%
- Iceland
- 0%
- Australia
- 0%
- South Korea
- 0%
- Georgia
- 0%
- Mauritius
- 0%
- Maldives
- 0%
- Cambodia
- 0%
- Nicaragua
- 0%
- Ecuador
- 0%
- Serbia
- 0%
- Hong Kong
- 0%
- Macao
- 0%
RCEP rates
- Australia
- 0%
- Brunei
- 0%
- Cambodia
- 0%
- South Korea
- 0%
- Laos
- 0%
- Malaysia
- 0%
- New Zealand
- 0%
- Singapore
- 0%
- Thailand
- 0%
- Vietnam
- 0%
- Japan
- 0%
- Indonesia
- 0%
- Philippines
- 0%
- Myanmar
- 0%
CIQ codes
- 2837200000301Cyanide complexes (hazardous chemicals, toxic substances)氰络合物(危险化学品,毒性物质)
- 2837200000302Cyano-complexes (other chemical products)氰络合物(其他化工品)
2837.20.00.11Potassium nickel cyanide, sodium copper zinc cyanide氰化镍钾,氰化钠铜锌Expired
Potassium nickel cyanide, nickel potassium cyanide, copper salts氰化钾镍,镍氰化钾,铜盐
- Unit
- kg
- MFN import duty
- 5%
- Provisional import duty
- None
- General import duty
- 30%
- Import VAT
- 13%
- Consumption tax
- None
- Export duty
- 0%
- Provisional export duty
- None
- Export VAT rebate
- 0%
- Updated by China
- 7 Sep 2026
Licences and certificates
None.
Inspection and quarantine
None.
What the customs declaration must state
- 0.Brand type品牌类型
- 1.Export preferential status出口享惠情况
- 2.Ingredient content成分含量
- 3.Packing specifications包装规格
- 4.GTIN
- 5.CAS
- 6.Other其他
China's agreement rates
- ASEAN
- 0%
- Chile
- 0%
- Pakistan
- 0%
- New Zealand
- 0%
- Peru
- 0%
- Costa Rica
- 0%
- Switzerland
- 0%
- Iceland
- 0%
- Australia
- 0%
- South Korea
- 0%
- Georgia
- 0%
- Mauritius
- 0%
RCEP rates
- Australia
- 0%
- Brunei
- 0%
- Cambodia
- 0%
- Laos
- 0%
- Malaysia
- 0%
- New Zealand
- 0%
- Singapore
- 0%
- Thailand
- 0%
- Vietnam
- 0%
- Japan
- 0%
CIQ codes
- 2837200011999Potassium nickel cyanide, sodium copper zinc cyanide (potassium nickel cyanide, nickel potassium cyanide, copper salt)氰化镍钾,氰化钠铜锌(氰化钾镍,镍氰化钾,铜盐)
2837.20.00.12Sodium cuprous cyanide, potassium cuprous cyanide氰化亚铜钠,氰化亚铜钾Expired
Copper salts, copper vitriol, sodium copper cyanide, potassium cuprous cyanide, potassium cuprous cyanide紫铜盐,紫铜矾,氰化铜钠,氰化亚铜钾,亚铜氰化钾
- Unit
- kg
- MFN import duty
- 5%
- Provisional import duty
- None
- General import duty
- 30%
- Import VAT
- 13%
- Consumption tax
- None
- Export duty
- 0%
- Provisional export duty
- None
- Export VAT rebate
- 0%
- Updated by China
- 7 Sep 2026
Licences and certificates
None.
Inspection and quarantine
None.
What the customs declaration must state
- 0.Brand type品牌类型
- 1.Export preferential status出口享惠情况
- 2.Ingredient content成分含量
- 3.Packing specifications包装规格
- 4.GTIN
- 5.CAS
- 6.Other其他
China's agreement rates
- ASEAN
- 0%
- Chile
- 0%
- Pakistan
- 0%
- New Zealand
- 0%
- Peru
- 0%
- Costa Rica
- 0%
- Switzerland
- 0%
- Iceland
- 0%
- Australia
- 0%
- South Korea
- 0%
- Georgia
- 0%
- Mauritius
- 0%
RCEP rates
- Australia
- 0%
- Brunei
- 0%
- Cambodia
- 0%
- Laos
- 0%
- Malaysia
- 0%
- New Zealand
- 0%
- Singapore
- 0%
- Thailand
- 0%
- Vietnam
- 0%
- Japan
- 0%
CIQ codes
- 2837200012101Sodium cuprocyanide (III), potassium cuprocyanide (III) (purple copper salt, purple copper vitriol, sodium copper cyanide, potassium cuprocyanide, potassium cuprous cyanide) (sodium cuprocyanide (III))氰化亚铜(三)钠,氰化亚铜(三)钾(紫铜盐,紫铜矾,氰化铜钠,氰化亚铜钾,亚铜氰化钾)(氰化亚铜(三)钠)
- 2837200012102Sodium cuprocyanide, potassium cuprocyanide (potassium cuprocyanide)氰化亚铜(三)钠,氰化亚铜(三)钾(紫铜盐,紫铜矾,氰化铜钠,氰化亚铜钾,亚铜氰化钾)(氰化亚铜(三)钾)
- 2837200012103Sodium cuprocyanide, potassium cuprocyanide (sodium cuprocyanide solution)氰化亚铜(三)钠,氰化亚铜(三)钾(紫铜盐,紫铜矾,氰化铜钠,氰化亚铜钾,亚铜氰化钾)(氰化亚铜(三)钠溶液)
- 2837200012999Sodium tricyanocuprate(I), potassium tricyanocuprate(I) (purple copper salt, purple copper vitriol, sodium copper cyanide, potassium cuprous cyanide, potassium cuprocyanide)氰化亚铜(三)钠,氰化亚铜(三)钾(紫铜盐,紫铜矾,氰化铜钠,氰化亚铜钾,亚铜氰化钾)
2837.20.00.90Other cyano-complexes其他氰络合物Expired
- Unit
- kg
- MFN import duty
- 5%
- Provisional import duty
- None
- General import duty
- 30%
- Import VAT
- 13%
- Consumption tax
- None
- Export duty
- 0%
- Provisional export duty
- None
- Export VAT rebate
- 0%
- Updated by China
- 7 Sep 2026
Licences and certificates
None.
Inspection and quarantine
None.
What the customs declaration must state
- 0.Brand type品牌类型
- 1.Export preferential status出口享惠情况
- 2.Ingredient content成分含量
- 3.Packing specifications包装规格
- 4.GTIN
- 5.CAS
- 6.Other其他
China's agreement rates
- ASEAN
- 0%
- Chile
- 0%
- Pakistan
- 0%
- New Zealand
- 0%
- Peru
- 0%
- Costa Rica
- 0%
- Switzerland
- 0%
- Iceland
- 0%
- Australia
- 0%
- South Korea
- 0%
- Georgia
- 0%
- Mauritius
- 0%
RCEP rates
- Australia
- 0%
- Brunei
- 0%
- Cambodia
- 0%
- Laos
- 0%
- Malaysia
- 0%
- New Zealand
- 0%
- Singapore
- 0%
- Thailand
- 0%
- Vietnam
- 0%
- Japan
- 0%
CIQ codes
- 2837200090999Other cyano-complexes其他氰络合物
China's tariff as compiled by HS编码网 from China Customs, the State Council Tariff Commission and the State Taxation Administration. The Chinese is the original.
Nearby codes
Sources
- GSTN HSN code masterChecked 13 Oct 2026
- DGFT ITC(HS) import and export policyChecked 9 Oct 2026
- GST rate per HSN (archived GSTZen extract)Checked 29 Sep 2026
- Customs Tariff of India (First Schedule): sections, chapters, notes and statutory BCDChecked 19 Oct 2026
- GST rates on goods, before and after 22 September 2025Checked 18 Oct 2026
- BIS compulsory certification: products and Quality Control OrdersChecked 18 Oct 2026
- Anti-dumping, countervailing and safeguard duties in force (India)Checked 19 Oct 2026
- India's export duty (Second Schedule to the Customs Tariff Act and notifications 27/2011, 55/2022, 22/2024)Checked 18 Oct 2026
- India's All Industry Rates of duty drawback (notification 77/2023-Customs (N.T.))Checked 19 Oct 2026
- China customs tariff (HS编码网)Checked 19 Oct 2026
For information, not a customs ruling. Only notifications published in the Gazette have legal force; confirm the duty with your customs broker or ICEGATE before you price a deal.