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. Chapter 39: Plastics and articles thereof.
The rate depends on what the goods are: the notification gives a different rate to different descriptions. Match your goods to a description in the table below. In force on 7 Nov 2026.
Each row is an entry of a CBIC rate notification that names this heading, a code inside it or its whole chapter, in the notification's own words. Goods take the rate of the entry whose description fits them. GST is CGST plus SGST (or UTGST) in equal halves on a sale within a State, or IGST at the full rate on a sale between States.
| GST | Tariff entry | Description of goods, and source |
|---|---|---|
| 18%9% + 9% | 3901 to 3913 | All goods i.e. polymers; Polyacetals, other polyethers, epoxide resins, polycarbonates, alkyd resins, polyallyl esters, other polyesters; polyamides; Amino-resins, phenolic resins and polyurethanes; silicones; Petroleum resins, coumarone-indene resins, polyterpenes, polysulphides, polysulphones and other products specified in Note 3 to this Chapter, not elsewhere specified or included; Cellulose and its chemical derivatives, not elsewhere specified or included; 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 Notification 9/2025-CT(R), Schedule II, S.No. 114 |
| Entries for the whole of Chapter 39 (they apply where the description fits) | ||
| 5%2.5% + 2.5% | 39, 48 | Paper Sacks/Bags and bio-degradable bags Notification 9/2025-CT(R), Schedule I, S.No. 319 |
| Goods of this heading that fit none of the descriptions above | ||
| 18%9% + 9% | Any Chapter | Goods which are not specified in Schedule I, III, IV, V, VI or VIINotification 9/2025-CT(R), Schedule II, S.No. 639 (the residual entry). A few entries cover goods of any chapter by description, such as puja samagri, rakhi or biomass briquettes; see the list on the finder. |
Every 6- and 8-digit code of heading 3913 in the GSTN HSN master (9 codes), in GSTN's wording. Where a rate entry names a code more exactly than the heading, its rate is shown beside the code.
| Code | Description (GSTN master) | Entry for this code | |
|---|---|---|---|
| 3913 10 | ALGINIC ACID, ITS SALTS AND ESTERS : | – | |
| 3913 10 10 | SODIUM ALGINATE | – | Save |
| 3913 10 90 | OTHER | – | Save |
| 3913 90 | OTHER : | – | |
| 3913 90 11 | CHLORINATED RUBBER | – | Save |
| 3913 90 19 | OTHER | – | Save |
| 3913 90 20 | HARDENED PROTEINS (SUCH AS HARDENED CASEIN, GELATIN) | – | Save |
| 3913 90 30 | DEXTRAN | – | Save |
| 3913 90 90 | OTHER | – | Save |
Put the code in the HSN column of the tax invoice. Notification No. 78/2020-Central Tax sets the minimum digits by aggregate turnover in the previous financial year: 4 digits (3913) up to ₹5 crore, which may be left off invoices to unregistered buyers, and 6 digits (from the table above) above ₹5 crore. Where the table shows more than one rate, charge the rate of the entry whose description fits the goods sold.
