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Tariff item · Chapter 28 · Section VI, Products of the chemical or allied industries

HS 2811 19 40Sulphonic acid

Inorganic chemicals, organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes › Other inorganic acids and other inorganic oxygen compounds of non-metals

Customs duty
7.5%
Tariff rate
GST now
5% or 18%
depending on the goods
Import policy
Free
Export policy
Free
Unit
kg
Duty in China
5%
On Indian goods
Landed costSearch codesDuty abroadRates as on 19 Oct 2026

Importing into India

What customs charges, what trade agreements take off, and the rules the goods must meet.

Customs duty

Customs duty on imports into India
DutyRateCharged on
Basic customs duty (BCD), MFN rate7.5%Assessable value
Agriculture Infrastructure and Development Cess (AIDC)NilAssessable value11/2021-Customs, S.No. 17
Social Welfare Surcharge (SWS)10% of BCD, AIDC and Health CessBCD + AIDC
Integrated GST (IGST)5% or 18%Assessable value + BCD + AIDC + SWS

Lower duty under trade agreements

Lower customs duty under India's trade agreements
AgreementCustoms dutyGoods from
ASEAN–India FTA0%Brunei, Indonesia, Cambodia, Laos, Myanmar, Malaysia, Philippines, Singapore, Thailand, Vietnam
Duty-free tariff preference for LDCs0%Afghanistan, Bangladesh, Burkina Faso, Burundi, Benin, Democratic Republic of the Congo, Central African Republic, Eritrea, Ethiopia, Gambia, Guinea, Guinea-Bissau, Haiti, Cambodia, Comoros, Laos, Liberia, Lesotho, Madagascar, Mali, Myanmar, Malawi, Mozambique, Niger, Rwanda, Sudan, Sierra Leone, Senegal, Somalia, Chad, Togo, Timor-Leste, Tanzania, Uganda, Yemen, Zambia
India–Australia ECTA0%Australia
India–EFTA TEPA51/2025-Customs0%Switzerland, Iceland, Liechtenstein, Norway
India–Japan CEPA0%Japan
India–Korea CEPA0%South Korea
India–Malaysia CECA0%Malaysia
India–Oman CEPA20/2026-Customs0%Oman
India–Sri Lanka FTA0%Sri Lanka
India–Thailand Early Harvest Scheme0%Thailand
India–UAE CEPA0%United Arab Emirates
India–UK CETA29/2026-Customs0%United Kingdom
SAFTA0%Afghanistan, Bangladesh, Bhutan, Maldives, Nepal
SAFTA5%Sri Lanka

Goods from Pakistan pay 200%.

Anti-dumping, countervailing and safeguard duty

None in force on this code as on 19 Oct 2026.

Clearance by other agencies

CBIC's Compliance Information Portal lists no other agency's clearance for imports of this item.

"Ensure compliance of CBIC circular 23/2023-CUS DT 30-09-23 for mandatory additional qualifiers in import declarations for commodities under CH 28,29,32,39 and cth 3808 as stipulated in para 4.1 and 4.2 wef 15-10-23**"

From Central Board of Indirect Taxes and Customs (CBIC), Compliance Information Portal.

Import policy (DGFT ITC(HS))

  • Free.
Notes on these rates
  • BCD is the statutory tariff rate from a one-time snapshot of the Indian Trade Portal. Exemption notifications (such as 45/2025-Customs) and tariff changes made after the snapshot, including the Finance Act 2026 changes from 1 May 2026, are not applied.
  • IGST comes from our archived GST table, which still has the 12% and 28% slabs, so it may pre-date the GST rate changes of 22 September 2025. Check the current rate.
  • AIDC, Health Cess and the SWS exemptions are read from notifications 11/2021-Customs, 08/2020-Customs and 11/2018-Customs as amended (to 16/2026-Customs), and the notifications that lower AIDC for a while. SWS is 10% of BCD, AIDC and Health Cess together (Finance Act 2018, s.110), never of anti-dumping, countervailing or safeguard duty or IGST.
  • AIDC is Nil (S.No. 17 of 11/2021-Customs, which exempts all goods it does not name).
  • Not included: GST compensation cess, anti-dumping, countervailing and safeguard duties, and exemptions or concessions such as end-use, EOU/SEZ or project imports.
  • This does not check whether the import is allowed (DGFT import policy, licences, quality-control orders). The HS code explorer shows the import policy.
  • This is an estimate, not an assessment. Confirm the duty with your customs broker or ICEGATE's duty calculator before you price a deal.

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

GST rate rules in force
NotificationGoodsRate
9/2025-Integrated Tax (Rate)Schedule I, S.No. 210Thorium oxalate, Enriched KBF4 (enriched potassium fluroborate), Enriched elemental boron, Nuclear fuel5%
9/2025-Integrated Tax (Rate)Schedule I, S.No. 211Anaesthetics, Potassium Iodate, Iodine, Steam5%
9/2025-Integrated Tax (Rate)Schedule I, S.No. 221Micronutrients, 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, 19855%
9/2025-Integrated Tax (Rate)Schedule II, S.No. 35All 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

GST rate history
PeriodRateNotification
Until 21 Sep 20255%, 12% or 18%1/2017-Central Tax (Rate)
From 22 Sep 20255% 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)

All Industry Rates of duty drawback under this heading
Drawback itemGoodsRateCap
2811Other inorganic acids and other inorganic oxygen compounds of non- metals1%—

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 incentives (RoDTEP and RoSCTL)

  • RoDTEP, Appendix 4R (exports from the domestic tariff area): 0.7% of the FOB value, until 31 Dec 2026.
  • RoDTEP, Appendix 4RE (exports under Advance Authorisation, EOU or SEZ): 0.4% of the FOB value, until 31 Dec 2026.

Clearance by other agencies

*FOR DRUGS AND PHARMACEUTICALS CDSCO NOC IS REQD EXCEPT WHEN EXEMPTED.REF-DCGI/MISC/2015(199) ORDER DTD 21.3.18* AS PER CIR NO.47/2017-CUS DTD 27/11/2017 FOR THE PURPOSE OF GRANT OF DRAWBACK WHEREVER EXPORT CONSIGNMENTS ARE SELECTED FOR ASSESSMENT OR EXAMINATION.THE AC/DC SHALL DETERMINE THE NEED TO DRAW SAMPLE ON MERITS OF EACH CASE.IF THE PACKING IS OF WOODEN MATERIAL, ENSURE THE VALID PHYTOSANITARY CERTIFICATE AND ISPM-15 MARKING COMPLIANCE AS PER CBEC INSTR. F.NO.450/19/2005-CUS-IV DTD 16.9.13.*

From Central Board of Indirect Taxes and Customs (CBIC), Compliance Information Portal.

Export policy (DGFT ITC(HS) Schedule 2)

  • Free.

What buyers pay abroad: import duty in the US, UK, EU and Australia for 2811 19, and China's below.

China: the same goods (2811 19)

China shares the first 6 digits with India and splits them into 10-digit codes of its own: 5 in force and 1 expired under 2811 19. Exporters see what China charges Indian goods; importers see the rebate and licences their Chinese supplier deals with.

China's tariff for these goods
China codeGoodsDuty on Indian goodsMFNImport VATExport rebateLicences
2811.19.20.00Hydrogen selenide硒化氢5%MFN rate (no APTA concession on this line)5%13%0%ABNM
2811.19.90.10Hydriodic acid氢碘酸5%MFN rate (no APTA concession on this line)5%13%0%ABGNM
2811.19.90.20Arsenic acid, pyroarsenic acid, metaarsenic acid砷酸、焦砷酸、偏砷酸5%MFN rate (no APTA concession on this line)5%13%0%None
2811.19.90.30Hydrobromic acid氢溴酸5%MFN rate (no APTA concession on this line)5%13%0%ABGMRNS
2811.19.90.90Other inorganic acids其他无机酸5%MFN rate (no APTA concession on this line)5%13%0%ABNMRS
  • 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

2811.19.10

2811.19.10.00Hydrocyanic acid (including hydrogen cyanide)氢氰酸(包括氰化氢 )Expired

Including hydrogen cyanide包括氰化氢

Unit
None
MFN import duty
None
Provisional import duty
None
General import duty
None
Import VAT
None
Consumption tax
None
Export duty
None
Provisional export duty
None
Export VAT rebate
None
Updated by China
30 Dec 2018
Licences and certificates

None.

Inspection and quarantine

None.

What the customs declaration must state

Not listed.

CIQ codes
  • 2811191000101Hydrocyanic acid (incl. hydrogen cyanide) (hydrogen cyanide (anhydrous, stabilized))氢氰酸(包括氰化氢)(氰化氢(无水,稳定的))
  • 2811191000102Hydrocyanic acid (incl. hydrogen cyanide) (hydrocyanic acid (content ≤20%))氢氰酸(包括氰化氢)(氢氰酸(含量≤20%))
  • 2811191000103Hydrocyanic acid (including hydrogen cyanide) (hydrocyanic acid fumigant)氢氰酸(包括氰化氢)(氢氰酸蒸熏剂)

2811.19.20Hydrogen selenide

2811.19.20.00Hydrogen selenide硒化氢
Unit
kg
MFN import duty
5%
Provisional import duty
None
General import duty
35%
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
  • AInbound goods clearance (inspection and quarantine)入境货物通关单
  • BOutbound goods clearance (inspection and quarantine)出境货物通关单
Inspection and quarantine
  • NExport commodity inspection出口商品检验
  • MImport commodity inspection进口商品检验
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.GTIN
  • 4.CAS
  • 5.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
2.8%
Laos
0%
Malaysia
0%
New Zealand
0%
Singapore
0%
Thailand
0%
Vietnam
0%
Japan
3%
Indonesia
0%
Philippines
0%
Myanmar
0%
CIQ codes
  • 2811192000999Hydrogen selenide硒化氢

2811.19.90Inorganic acids, n.e.s.

2811.19.90.10Hydriodic acid氢碘酸
Unit
kg
MFN import duty
5%
Provisional import duty
None
General import duty
35%
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
  • AInbound goods clearance (inspection and quarantine)入境货物通关单
  • BOutbound goods clearance (inspection and quarantine)出境货物通关单
  • GDual-use items and technologies export licence (targeted)两用物项和技术出口许可证(定向)
Inspection and quarantine
  • NExport commodity inspection出口商品检验
  • MImport commodity inspection进口商品检验
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.GTIN
  • 4.CAS
  • 5.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
2.8%
Laos
0%
Malaysia
0%
New Zealand
0%
Singapore
0%
Thailand
0%
Vietnam
0%
Japan
3%
Indonesia
0%
Philippines
0%
Myanmar
0%
CIQ codes
  • 2811199010999Hydriodic acid氢碘酸
2811.19.90.20Arsenic acid, pyroarsenic acid, metaarsenic acid砷酸、焦砷酸、偏砷酸
Unit
kg
MFN import duty
5%
Provisional import duty
None
General import duty
35%
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.GTIN
  • 4.CAS
  • 5.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
2.8%
Laos
0%
Malaysia
0%
New Zealand
0%
Singapore
0%
Thailand
0%
Vietnam
0%
Japan
3%
Indonesia
0%
Philippines
0%
Myanmar
0%
CIQ codes
  • 2811199020101Arsenic acid, pyroarsenic acid, metaarsenic acid (arsenic acid)砷酸、焦砷酸、偏砷酸(砷酸)
  • 2811199020102Arsenic acid, pyroarsenic acid, metaarsenic acid (metaarsenic acid)砷酸、焦砷酸、偏砷酸(偏砷酸)
  • 2811199020103Arsenic acid, pyroarsenic acid, metaarsenic acid (pyroarsenic acid)砷酸、焦砷酸、偏砷酸(焦砷酸)
  • 2811199020301Arsenic acid, pyroarsenic acid, metaarsenic acid砷酸、焦砷酸、偏砷酸
  • 2811199020999Arsenic acid, pyroarsenic acid, metaarsenic acid砷酸、焦砷酸、偏砷酸
2811.19.90.30Hydrobromic acid氢溴酸

CAS10035-10-6

Unit
kg
MFN import duty
5%
Provisional import duty
None
General import duty
35%
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
  • AInbound goods clearance (inspection and quarantine)入境货物通关单
  • BOutbound goods clearance (inspection and quarantine)出境货物通关单
  • GDual-use items and technologies export licence (targeted)两用物项和技术出口许可证(定向)
Inspection and quarantine
  • MImport commodity inspection进口商品检验
  • RImported food hygiene inspection进口食品卫生监督检验
  • NExport commodity inspection出口商品检验
  • SExported food hygiene inspection出口食品卫生监督检验
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.GTIN
  • 4.CAS
  • 5.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
2.8%
Laos
0%
Malaysia
0%
New Zealand
0%
Singapore
0%
Thailand
0%
Vietnam
0%
Japan
3%
Indonesia
0%
Philippines
0%
Myanmar
0%
CIQ codes
  • 2811199030999Hydrobromic acid (CAS No. 10035-10-6)氢溴酸(CAS号10035-10-6)
2811.19.90.90Other inorganic acids其他无机酸
Unit
kg
MFN import duty
5%
Provisional import duty
None
General import duty
35%
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
  • AInbound goods clearance (inspection and quarantine)入境货物通关单
  • BOutbound goods clearance (inspection and quarantine)出境货物通关单
Inspection and quarantine
  • NExport commodity inspection出口商品检验
  • MImport commodity inspection进口商品检验
  • RImported food hygiene inspection进口食品卫生监督检验
  • SExported food hygiene inspection出口食品卫生监督检验
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.GTIN
  • 4.CAS
  • 5.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
2.8%
Laos
0%
Malaysia
0%
New Zealand
0%
Singapore
0%
Thailand
0%
Vietnam
0%
Japan
3%
Indonesia
0%
Philippines
0%
Myanmar
0%
CIQ codes
  • 2811199090101Other inorganic acids (perchloric acid (concentration > 72%))其他无机酸(高氯酸(浓度>72%))
  • 2811199090102Other inorganic acids (hydrogen sulphide (liquefied))其他无机酸(硫化氢(液化的))
  • 2811199090103Other inorganic acids (hydrogen iodide (anhydrous))其他无机酸(碘化氢(无水))
  • 2811199090104Other inorganic acids (hydrogen bromide (anhydrous))其他无机酸(溴化氢(无水))
  • 2811199090105Other inorganic acids (hydrogen selenide (anhydrous))其他无机酸(硒化氢(无水))
  • 2811199090106Other inorganic acids (perchloric acid (acid content 50% to 72%))其他无机酸(高氯酸(含酸50%~72%))
  • 2811199090107Other inorganic acids (chloric acid solution (concentration ≤ 10%))其他无机酸(氯酸溶液(浓度≤10%))
  • 2811199090108Other inorganic acids (perchloric acid acetic anhydride solution)其他无机酸(高氯酸醋酐溶液)
  • 2811199090109Other inorganic acids (periodic acid)其他无机酸(高碘酸)
  • 2811199090110Other inorganic acids (iodic acid)其他无机酸(碘酸)
  • 2811199090111Other inorganic acids (nitrating acid mixtures)其他无机酸(硝化酸混合物)
  • 2811199090112Other inorganic acids (spent nitrating mixed acid)其他无机酸(废硝化混合酸)
  • 2811199090113Other inorganic acids (chromium-containing sulphuric acid)其他无机酸(含铬硫酸)
  • 2811199090114Other inorganic acids (sludge sulfuric acid)其他无机酸(淤渣硫酸)
  • 2811199090115Other inorganic acids (sulphurous acid)其他无机酸(亚硫酸)
  • 2811199090116Other inorganic acids (nitrosylsulfuric acid)其他无机酸(亚硝基硫酸)
  • 2811199090117Other inorganic acids (aqua regia)其他无机酸(硝基盐酸)
  • 2811199090118Other inorganic acids (hydrobromic acid)其他无机酸(氢溴酸)
  • 2811199090119Other inorganic acids (hydrogen bromide acetic acid solution)其他无机酸(溴化氢乙酸溶液)
  • 2811199090120Other inorganic acids (bromic acid)其他无机酸(溴酸)
  • 2811199090121Other inorganic acids (perchloric acid (acid content ≤ 50%))其他无机酸(高氯酸(含酸≤50%))
  • 2811199090122Other inorganic acids (fluorosulphonic acid)其他无机酸(氟磺酸)
  • 2811199090123Other inorganic acids (fluorosilicic acid)其他无机酸(氟硅酸)
  • 2811199090124Other inorganic acids (fluoroboric acid)其他无机酸(氟硼酸)
  • 2811199090125Other inorganic acids (fluorophosphoric acid (anhydrous))其他无机酸(氟磷酸(无水))
  • 2811199090126Other inorganic acids (difluorophosphoric acid (anhydrous))其他无机酸(二氟磷酸(无水))
  • 2811199090127Other inorganic acids (hexafluorophosphoric acid (anhydrous))其他无机酸(六氟合磷氢酸(无水))
  • 2811199090128Other inorganic acids (selenic acid)其他无机酸(硒酸)
  • 2811199090129Other inorganic acids (chromic acid solution)其他无机酸(铬酸溶液)
  • 2811199090130Other inorganic acids (phosphorous acid)其他无机酸(亚磷酸)
  • 2811199090131Other inorganic acids (hypophosphorous acid)其他无机酸(次磷酸)
  • 2811199090132Other inorganic acids (polyphosphoric acid)其他无机酸(多聚磷酸)
  • 2811199090133Other inorganic acids (sulfamic acid)其他无机酸(氨基磺酸)
  • 2811199090134Other inorganic acids (chloroplatinic acid)其他无机酸(氯铂酸)
  • 2811199090301Other inorganic acids (hazardous chemicals, gas)其他无机酸(危险化学品,气体)
  • 2811199090302Other inorganic acids (dangerous chemicals, oxidizing substances)其他无机酸(危险化学品,氧化性物质)
  • 2811199090303Other inorganic acids (dangerous chemicals, toxic substances)其他无机酸(危险化学品,毒性物质)
  • 2811199090304Other inorganic acids (dangerous chemicals, corrosive substances)其他无机酸(危险化学品,腐蚀性物质)
  • 2811199090305Other inorganic acids (other dangerous chemicals)其他无机酸(其他危险化学品)
  • 2811199090306Other inorganic acids (dangerous chemicals, for use as food additives)其他无机酸(危险化学品,用作食品添加剂)
  • 2811199090307Other inorganic acids (other chemicals, not for use as food additives)其他无机酸(其他化工品,不用作食品添加剂)
  • 2811199090308Other inorganic acids (other chemicals, for use as food additives)其他无机酸(其他化工品,用作食品添加剂)

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

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.