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HSN Code 29309040: L-Cystine
HSN Code 29309040 represents L-Cystine under GST classification. This code helps businesses identify L-Cystine correctly for billing, taxation, and trade. With HSN Code 29309040, companies can avoid errors in invoices, simplify compliance, and enable hassle-free import or export of L-Cystine.
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Description of Goods for HSN Code 29309040
HSN Code 29309040 relates to the following description.
From 1 May 2025 (Finance Act, 2025), this tariff item was carved out of this code. Goods covered by it are classified there from that date:
- 29309014 – L-Cystine, Sulphur-Containing Amino Acid
What does HSN Code 29309040 not include?
L-Cystine does not include products with the following descriptions.
2-(N,N-Dimethylamino) ethanethiol
Thiocarbamates and dithiocarbamates
Cartap hydrochloride (iso)
Other
Thiuram mono-, di or tetrasulphides
Methionine
Organosulphur compounds captafol iso and methamidophos iso
2-(N, N-Diethylamino)ethanethiol
Bis(2-hydroxyethyl)sulfide (thiodiglycol (INN))
Aldicarb (ISO), captafol (ISO) and methamidophos (ISO)
Other :Thiourea (sulphourea)
Other :Thiourea (sulphourea)
Other :Calcium salts of methionine
Other :Thio sulphonic acid
Other :L-cystine (alpha-amino beta-thiopropionic acid)-sulphur containing amino acid
Other :Sulphinic acid
Other :Sulphoxide
Other :Mercaptan
Other :Allyl isothiocyanate
Other :Calcium salts of methionine
Other :Other : Other O,O-Diethyl S-[2-(diethylamino)ethyl]phosphorothioate and its alkylated or protonated salts, excluding Phosphorothioic acid, S[2-(diethyl amino) ethyl] O,O-Diethyl ester (29309021)
Other :Thio sulphonic acid
Other :Other : Other N,N-dialkyl (methyl, ethyl, n-propyl or isopropyl) aminoethane-2-thiols and their protonated salts, excluding the hydrochlorides of 29309031 and 29309032
Other :Sulphinic acid
Other :Sulphoxide
Other :Mercaptan
Other :Allyl isothiocyanate
Organo-sulphur compounds - other : other
Other :Other :Ethanol, 2,2'-thiobis-
Acephate (iso)
Other :Other :Di-Methyl Amino ethanethiol Hydrochloride
Diethyl amino ethanethiol
Other :Other :Di-ethyl Amino ethanethiol hydrochloride
Other :Other :O-Ethyl S-phenyl ethylphosphonothiolothionate (fonofos)
Other :Other :Phosphorothioic acid, S[2-(diethyl amino) ethyl] O O-Diethyl ester
Other :Other :Dichloro diphenyl sulphone
Other :Other :Other
2-(N,N-Dimethylamino) ethanethiol
Thiocarbamates and dithiocarbamates
Cartap hydrochloride (iso)
Other
Thiuram mono-, di or tetrasulphides
Methionine
Organosulphur compounds captafol iso and methamidophos iso
2-(N, N-Diethylamino)ethanethiol
Bis(2-hydroxyethyl)sulfide (thiodiglycol (INN))
Aldicarb (ISO), captafol (ISO) and methamidophos (ISO)
Other :Thiourea (sulphourea)
Other :Thiourea (sulphourea)
Other :Calcium salts of methionine
Other :Thio sulphonic acid
Other :L-cystine (alpha-amino beta-thiopropionic acid)-sulphur containing amino acid
Other :Sulphinic acid
Other :Sulphoxide
Other :Mercaptan
Other :Allyl isothiocyanate
Other :Calcium salts of methionine
Other :Other : Other O,O-Diethyl S-[2-(diethylamino)ethyl]phosphorothioate and its alkylated or protonated salts, excluding Phosphorothioic acid, S[2-(diethyl amino) ethyl] O,O-Diethyl ester (29309021)
Other :Thio sulphonic acid
Other :Other : Other N,N-dialkyl (methyl, ethyl, n-propyl or isopropyl) aminoethane-2-thiols and their protonated salts, excluding the hydrochlorides of 29309031 and 29309032
Other :Sulphinic acid
Other :Sulphoxide
Other :Mercaptan
Other :Allyl isothiocyanate
Organo-sulphur compounds - other : other
Other :Other :Ethanol, 2,2'-thiobis-
Acephate (iso)
Other :Other :Di-Methyl Amino ethanethiol Hydrochloride
Diethyl amino ethanethiol
Other :Other :Di-ethyl Amino ethanethiol hydrochloride
Other :Other :O-Ethyl S-phenyl ethylphosphonothiolothionate (fonofos)
Other :Other :Phosphorothioic acid, S[2-(diethyl amino) ethyl] O O-Diethyl ester
Other :Other :Dichloro diphenyl sulphone
Other :Other :Other
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India’s Trade Performance — HSN Code 29309040 in FY 2025-26
No exports or imports were recorded under HSN Code 29309040 in FY 2025-26. Trade in the goods carved out of it is recorded under 29309014. Figures for FY 2024-25 and earlier years are in the table below.
India Export-Import Trade Statistics for HSN Code 29309040
8-year export and import data, FY 2018-19 to FY 2025-26, in ₹ Crore. Source: Ministry of Commerce & Industry, TradeStat EIDB.
Balance
+21.01
Exports
129.10 ₹ Cr
0.0057% share
— YoY
16.21% of Sub-Ch. 2930
Imports
108.09 ₹ Cr
0.0030% share
— YoY
5.24% of Sub-Ch. 2930
Balance
+14.09
Exports
150.62 ₹ Cr
0.0068% share
+16.67% YoY
14.12% of Sub-Ch. 2930
Imports
136.53 ₹ Cr
0.0041% share
+26.31% YoY
7.45% of Sub-Ch. 2930
Balance
+11.92
Exports
137.89 ₹ Cr
0.0064% share
−8.45% YoY
8.30% of Sub-Ch. 2930
Imports
125.97 ₹ Cr
0.0043% share
−7.73% YoY
5.37% of Sub-Ch. 2930
Balance
−103.29
Exports
49.58 ₹ Cr
0.0016% share
−64.04% YoY
2.62% of Sub-Ch. 2930
Imports
152.87 ₹ Cr
0.0033% share
+21.35% YoY
4.91% of Sub-Ch. 2930
Balance
−145.92
Exports
55.47 ₹ Cr
0.0015% share
+11.88% YoY
2.64% of Sub-Ch. 2930
Imports
201.39 ₹ Cr
0.0035% share
+31.74% YoY
5.77% of Sub-Ch. 2930
Balance
−130.25
Exports
40.68 ₹ Cr
0.0011% share
−26.66% YoY
1.81% of Sub-Ch. 2930
Imports
170.93 ₹ Cr
0.0030% share
−15.12% YoY
5.07% of Sub-Ch. 2930
Balance
−116.68
Exports
41.24 ₹ Cr
0.0011% share
+1.38% YoY
1.72% of Sub-Ch. 2930
Imports
157.92 ₹ Cr
0.0026% share
−7.61% YoY
4.26% of Sub-Ch. 2930
Balance
0.00
Exports
Nil ₹ Cr
0.0000% share
−100.00% YoY
0.00% of Sub-Ch. 2930
Imports
Nil ₹ Cr
0.0000% share
−100.00% YoY
0.00% of Sub-Ch. 2930
reference, FY 2025-26
Export
₹4,637.24 Cr
Import
₹3,776.01 Cr
Trade Balance
+861.23
Frequently Asked Questions
Clear answers to common queries about HSN Code 29309040 and GST compliance.
What products are classified under HSN 29309040 ?
It includes L-Cystine
Any common misclassification issue with L-Cystine?
Use the exact HSN and describe the form/grade. For multi‑line invoices, apply the rate per line to avoid wrong tax collection.
Does packaging or labelling change the GST for L-Cystine?
For food/agri items, GST can be 5% when not fresh/chilled and sold as pre‑packaged & labelled; otherwise often Nil. For non‑food items, rates depend on the specific sub‑heading.
Do e‑way bill and e‑invoice apply for L-Cystine?
e‑Way bill is needed above ₹50,000 consignment value (subject to exemptions). e‑Invoicing is turnover‑based (presently AATO > ₹5 crore) for B2B supplies.
Can we claim ITC on inputs used to trade L-Cystine?
If your outward supply is taxable, eligible ITC is available subject to general restrictions. For exempt/Nil supplies, reverse credit per Rule 42.
How should mixed supplies be billed when L-Cystine is sold with other items?
Use separate invoice lines per HSN and apply the correct rate per line (e.g., Varies for L-Cystine; Nil for exempt items if applicable).
How much GST applies to L-Cystine?
Under HSN 29309040, L-Cystine attracts Varies when sold in taxable form. Describe the exact form on the invoice.