3913 HSN Code: Natural polymers in primary forms

HSN Sub Chapter 3913 represents Natural polymers in primary forms under GST classification. This code helps businesses identify Natural polymers in primary forms correctly for billing, taxation, and trade. With HSN Sub Chapter 3913, companies can avoid errors in invoices, simplify compliance, and enable hassle-free import/export of Natural polymers in primary forms.

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Chapter No	HSN Code	HSN Description	New GST Rate	Old GST Rate
39	3913	Natural polymers (for example, alginic acid)and modified natural polymers (for example,hardened proteins , chemical derivatives of natural rubber), not elsewhere specified or included , in primary forms	18%	18%

HSN Code 3913

Chapter: 39

Description: Natural polymers (for example, alginic acid)and modified natural polymers (for example,hardened proteins , chemical derivatives of natural rubber), not elsewhere specified or included , in primary forms

New GST Rate: 18% Old GST Rate: 18%

Tariff HSN	Description
39131010	Alginic acid, its salts and esters : Sodium alginate
39131090	Alginic acid, its salts and esters : Other
39139011	Other : Chemical derivatives of natural rubber: Chlorinated rubber
39139019	Other : Chemical derivatives of natural rubber: Other
39139020	Other : Hardened proteins (such as hardened casein, gelatin)
39139030	Other : Dextran
39139090	Other : Other

HSN Code 39131010

Alginic acid, its salts and esters : Sodium alginate

HSN Code 39131090

Alginic acid, its salts and esters : Other

HSN Code 39139011

Other : Chemical derivatives of natural rubber: Chlorinated rubber

HSN Code 39139019

Other : Chemical derivatives of natural rubber: Other

HSN Code 39139020

Other : Hardened proteins (such as hardened casein, gelatin)

HSN Code 39139030

Other : Dextran

HSN Code 39139090

Other : Other

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What products are classified under HSN 3913

It includes Natural polymers in primary forms

Any special steps when selling Natural polymers in primary forms through an e‑commerce platform?

Ensure registration requirements are met and reconcile the operator’s TCS statements with your GSTR‑2B/3B. Map SKU descriptions to HSN to reduce mismatches and returns.

How should I document Natural polymers in primary forms sent for job work?

Use a delivery challan for sending Natural polymers in primary forms to the job worker. Declare movement in your records and reconcile when the goods return. If the job worker raises a service invoice, classify it under SAC; your goods remain under the original HSN.

How are warranty replacements of Natural polymers in primary forms handled?

If replacement is without consideration under a pre‑agreed warranty, issue a delivery challan and reference the original invoice/contract. If consideration is charged, raise a tax invoice. Keep serial/lot details for traceability.

Does packaging or branding change how GST applies to Natural polymers in primary forms?

Yes. Many food/agri goods are treated differently when sold as pre‑packaged & labelled retail packs versus loose/open packs. If Natural polymers in primary forms is sold in small pouches (e.g., 500 g) with an MRP and label, record that on the invoice. Loose bulk bags often follow a different treatment.

Is the composition scheme suitable if I mainly trade Natural polymers in primary forms?

The composition scheme is optional for eligible small suppliers of goods. You cannot issue tax invoices or collect tax under composition. Check turnover limits and exclusions; evaluate margins and ITC loss before opting in.

Important Disclaimer

The above does not constitute professional advice or a formal recommendation. We recommend consulting a professional tax consultant before acting on the information contained in this piece of content.

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