HSN code · Customs Tariff of India · GST rate
38109090 is the 8-digit HSN code for “Pickling preparations for metal surfaces; fluxes and other auxiliary preparations for soldering, brazing or welding”: tariff item 3810 90 90 under heading 3810 of the Customs Tariff of India. The GST rate depends on the goods: the entries for this code carry 5% or 18%. Search a code or product below, or copy the code for your invoice.
This code
Chapter 38Heading 3810Sub-heading 3810 90Tariff item 3810 90 90
Pickling preparations for metal surfaces; fluxes and other auxiliary preparations for soldering, brazing or welding; soldering, brazing or welding powders and pastes consisting of metal and other materials; preparations of a kind used as cores or coatings for welding electrodes or rods: Other: Other
Tariff item 3810 90 90 · Heading 3810 · Chapter 38, Customs Tariff of India
The code
What the code covers in the Customs Tariff of India, and the GST rate entries that apply to it.
381090908 digits: 38 + 10 + 90 + 903810 90 90OtherHow to read it
An HSN code is built in layers. Each pair of digits narrows the one before it: 2 digits = chapter, 4 = heading, 6 = sub-heading, 8 = tariff item in the Customs Tariff of India.
The broadest layer. Chapter 38 covers miscellaneous chemical products. It sits in Section VI, products of the chemical or allied industries.
Pickling preparations for metal surfaces; fluxes and other auxiliary preparations for soldering, brazing or welding; soldering, brazing or welding powders and pastes consisting of metal and other materials; preparations of a kind used as cores or coatings for welding electrodes or rods.
Other.
Other. The full 8-digit code used in the Customs Tariff of India and on invoices that show the complete HSN.
Unit of quantity: kg.
GST rate
2 entries of the GST rate notifications name this code's heading or particular goods in its chapter, and they carry 5% or 18%. No single rate is stated for 38109090 here; read each entry's official description against your goods.
| Entry | Tariff column, as printed | Description, as printed | GST rate |
|---|---|---|---|
| Entry that cites 3810 (this code's heading) | |||
| Schedule II, S. No. 97Notification No. 9/2025-Integrated Tax (Rate)Central Tax: Notification No. 9/2025-Central Tax (Rate) | 3810 | Pickling preparations for metal surfaces; fluxes and other auxiliary preparations for soldering, brazing or welding; soldering, brazing or welding powders and pastes consisting of metal and other materials; preparations of a kind used as cores or coatings for welding electrodes or rods | 18%IGST 18% · CGST 9% · SGST/UTGST 9%From 22 September 2025 |
| Entries for particular goods in chapter 38 | |||
| Schedule I, S. No. 221Notification No. 9/2025-Integrated Tax (Rate)Central Tax: Notification No. 9/2025-Central Tax (Rate) | 28 or 38 | 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%IGST 5% · CGST 2.5% · SGST/UTGST 2.5%From 22 September 2025 |
Each entry applies only to the goods it describes. If none describes your goods, the entry for goods not specified elsewhere applies: Schedule II, S. No. 639, 18%: “Goods which are not specified in Schedule I, III, IV, V, VI or VII”.
Rates are IGST on inter-State supplies; on supplies within a State the same rate is split equally between CGST and SGST/UTGST, under Notification No. 9/2025-Central Tax (Rate) with the same S. Nos.
On your invoice
Notification No. 78/2020-Central Tax dated 15.10.2020 sets the minimum number of HSN digits on B2B tax invoices from 1 April 2021, by the business's aggregate turnover in the previous year.
Businesses with aggregate turnover up to ₹5 crore in the previous year show at least the heading, 3810, on B2B tax invoices.
Above ₹5 crore, at least the sub-heading, 381090, goes on B2B tax invoices.
Many businesses show the full 38109090, the tariff item itself.
Rate history
Rate depends on the goods
Notification No. 9/2025-Integrated Tax (Rate) and No. 9/2025-Central Tax (Rate) dated 17.09.2025 (as corrected 18.09.2025), which superseded Notification No. 1/2017-Integrated Tax (Rate) dated 28.06.2017. The 2 entries in force from this date are listed in the GST rate section above.
Earlier rates under Notification 1/2017 are not shown here
Notification No. 1/2017-Integrated Tax (Rate) dated 28.06.2017 applied until it was superseded by Notification 9/2025.
Related codes
Heading 3810, pickling preparations for metal surfaces; fluxes and other auxiliary preparations for soldering, brazing or welding; soldering, brazing or welding powders and pastes consisting of metal and other materials; preparations of a kind used as cores or coatings for welding electrodes or rods. The codes below sit closest to 38109090 in the Customs Tariff of India: the other tariff items under heading 3810 and codes elsewhere in chapter 38. Each is shown in the official wording and has its own page with its GST rate entries. Use the search above for any other code.
38109090, this page's code, is tariff item 3810 90 90 under the same heading.
38119000Heading 3811 · tariff item 3811 90 0038122090Heading 3812 · tariff item 3812 20 90Codes under other headings of chapter 38, miscellaneous chemical products. Each page shows that code's own heading and GST rate entries.
Questions
It depends on the goods: 2 entries of the rate notifications name this code's heading or particular goods in its chapter, and they carry 5% or 18%: Schedule II, S. No. 97 (18%); Schedule I, S. No. 221 (5%). Each entry applies only to the goods it describes; if none describes your goods, Schedule II, S. No. 639 (18%) applies. The full wording of every entry is in the GST rate section above.
At least 4 digits if your aggregate turnover in the previous year was up to ₹5 crore, and at least 6 digits above ₹5 crore, on B2B tax invoices (Notification No. 78/2020-Central Tax dated 15.10.2020, from 1 April 2021). For this code that is 3810 or 381090; many businesses use the full 38109090.
Tariff item 3810 90 90 of the Customs Tariff of India, First Schedule: “Other”, under sub-heading 3810 90 (“Other”), heading 3810 (“Pickling preparations for metal surfaces; fluxes and other auxiliary preparations for soldering, brazing or welding; soldering, brazing or welding powders and pastes consisting of metal and other materials; preparations of a kind used as cores or coatings for welding electrodes or rods”), in chapter 38 (miscellaneous chemical products), Section VI (products of the chemical or allied industries). Unit of quantity: kg.
About this page
The section, chapter, heading, sub-heading and tariff item on this page are taken from the Customs Tariff of India, First Schedule (Customs Tariff Act, 1975), CBIC edition as on 30 June 2024, with the tariff-line changes of the Finance (No. 2) Act 2024, Finance Act 2025 and Finance Act 2026 applied. The GST entries are taken from Notification No. 9/2025-Integrated Tax (Rate) and No. 9/2025-Central Tax (Rate) dated 17.09.2025 (as corrected 18.09.2025), as amended by Notifications 19/2025 and 01/2026; exemptions: Notification No. 10/2025.
This is reference information for classification and invoicing. It is not advice on how your own goods should be classified, and the official tariff and notifications prevail if the two ever differ. A change in the tariff or in a rate notification re-opens this page for an update.
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