Natural polymers (e.g. alginic acid) and modified natural polymers (e.g. hardened proteins, chemical derivatives of natural rubber), n.e.c. or included, in primary forms

HS v2022 Code: 3913

Chapter	Heading	Sub-heading
39	13	n/a

Code	3913
Version	HS v2022
Hierarchy Level	4
Datasource	WCO
Chapter	39

Ancestor Codes: Plastics and articles thereof

This Code: Natural polymers (e.g. alginic acid) and modified natural polymers (e.g. hardened proteins, chemical derivatives of natural rubber), n.e.c. or included, in primary forms

Child Codes: Polymers, natural; alginic acid, its salts and esters, in primary forms; Polymers, natural and modified natural; in primary forms (excluding alginic acid, its salts and esters)

Sibling Codes (Nearest 5): Silicones in primary forms; Petroleum resins, coumarone-indene resins, polyterpenes, polysulphides, polysulphones and similar products of chemical synthesis n.e.c. in chapter 39, in primary forms; Cellulose and its chemical derivatives, n.e.c. or included, in primary forms; Ion-exchangers; based on polymers of heading no. 3901 to 3913, in primary forms; Waste, parings and scrap, of plastics

About natural polymers (e.g. alginic acid) and modified natural polymers (e.g. hardened proteins, chemical derivatives of natural rubber), n.e.c. or included, in primary forms

HS code 3913 covers a diverse range of natural and modified natural polymers that have a wide array of applications across various industries. These materials play a crucial role in the production of many everyday items, from adhesives and coatings to medical devices and personal care products. As a key component of the chemical industry, the 3913 product group contributes significantly to the global economy and supports the development of innovative solutions to meet evolving market demands.

Production process

The production of natural and modified natural polymers under HS code 3913 typically involves a multi-step process. First, the raw materials, such as alginic acid, natural rubber, or hardened proteins, are extracted or synthesized. These materials are then subjected to various chemical modifications, such as cross-linking, grafting, or derivatization, to enhance their physical and chemical properties. The modified polymers are then purified, dried, and formulated into primary forms, such as powders, granules, or liquids, ready for further processing or incorporation into final products.

Production inputs

The main inputs required for the production of 3913 products include natural raw materials, such as seaweed, animal proteins, or natural rubber, as well as various chemical reagents and solvents used in the modification and processing stages. Specialized equipment, such as reactors, mixers, and drying systems, are also essential for the efficient and consistent production of these materials. Additionally, skilled labor and technical expertise are necessary to ensure the quality and performance of the final products.

Production outputs

The diverse range of natural and modified natural polymers covered under HS code 3913 find applications in a wide variety of industries. These materials are commonly used as thickeners, emulsifiers, and stabilizers in the production of 3304 Cosmetics and Toiletry Preparations, 3401 Soap, Organic Surface-Active Agents, Washing Preparations, Lubricating Preparations, Artificial Waxes, Prepared Waxes, Polishing or Scouring Preparations, Candles and Similar Articles, Modeling Pastes, 'Dental Waxes' and Dental Preparations with a Basis of Plaster, and 3506 Prepared Glues and Other Prepared Adhesives, Not Elsewhere Specified or Included; Products Suitable for Use as Glues or Adhesives, Put Up for Retail Sale as Glues or Adhesives, Not Exceeding a Net Weight of 1 kg. Additionally, these polymers are used in the manufacture of 3005 (Wadding, Gauze, Bandages and Similar Articles (for Example, Dressings, Adhesive Plasters, Poultices), Impregnated or Coated with Pharmaceutical Substances or Put Up in Forms or Packings for Retail Sale for Medical, Surgical, Dental or Veterinary Purposes), 3006 Pharmaceutical Goods Specified in Note 4 to This Chapter, and various other products.

Family tree for natural polymers (e.g. alginic acid) and modified natural polymers (e.g. hardened proteins, chemical derivatives of natural rubber), n.e.c. or included, in primary forms

    graph LR
    A["<a href='/classifications/hs/v2022/39'>39: Plastics and articles thereof</a>"]
A --> B["<a href='/classifications/hs/v2022/3913'>3913: Natural polymers (e.g. alginic acid) and modified natural polymers (e.g. hardened proteins, chemical derivatives of natural rubber), n.e.c. or included, in primary forms</a>"]

    A --> C["<a href='/classifications/hs/v2022/3901'>3901: Polymers of ethylene, in primary forms</a>"]
A --> D["<a href='/classifications/hs/v2022/3902'>3902: Polymers of propylene or of other olefins, in primary forms</a>"]
A --> E["<a href='/classifications/hs/v2022/3903'>3903: Polymers of styrene, in primary forms</a>"]
A --> F["<a href='/classifications/hs/v2022/3904'>3904: Polymers of vinyl chloride or of other halogenated olefins, in primary forms</a>"]
A --> G["<a href='/classifications/hs/v2022/3905'>3905: Polymers of vinyl acetate or of other vinyl esters, in primary forms; other vinyl polymers in primary forms</a>"]
A --> H["<a href='/classifications/hs/v2022/3906'>3906: Acrylic polymers in primary forms</a>"]
A --> I["<a href='/classifications/hs/v2022/3907'>3907: Polyacetals, other polyethers and epoxide resins, in primary forms; polycarbonates, alkyd resins, polyallyl esters and other polyesters, in primary forms</a>"]
A --> J["<a href='/classifications/hs/v2022/3908'>3908: Polyamides in primary forms</a>"]
A --> K["<a href='/classifications/hs/v2022/3909'>3909: Amino-resins, phenolic resins and polyurethanes, in primary forms</a>"]
A --> L["<a href='/classifications/hs/v2022/3910'>3910: Silicones in primary forms</a>"]
A --> M["<a href='/classifications/hs/v2022/3911'>3911: Petroleum resins, coumarone-indene resins, polyterpenes, polysulphides, polysulphones and similar products of chemical synthesis n.e.c. in chapter 39, in primary forms</a>"]
A --> N["<a href='/classifications/hs/v2022/3912'>3912: Cellulose and its chemical derivatives, n.e.c. or included, in primary forms</a>"]
A --> O["<a href='/classifications/hs/v2022/3914'>3914: Ion-exchangers; based on polymers of heading no. 3901 to 3913, in primary forms</a>"]
A --> P["<a href='/classifications/hs/v2022/3915'>3915: Waste, parings and scrap, of plastics</a>"]
A --> Q["<a href='/classifications/hs/v2022/3916'>3916: Monofilament of which any cross-sectional dimension exceeds 1mm, rods, sticks and profile shapes, whether or not surface-worked but not otherwise worked, of plastics</a>"]
A --> R["<a href='/classifications/hs/v2022/3917'>3917: Tubes, pipes and hoses and fittings thereof (for example, joints, elbows, flanges), of plastics</a>"]
A --> S["<a href='/classifications/hs/v2022/3918'>3918: Floor coverings of plastics, self-adhesive or not, in rolls or tiles; wall or ceiling coverings of plastics, in rolls of a width not less than 45cm</a>"]
A --> T["<a href='/classifications/hs/v2022/3919'>3919: Self-adhesive plates, sheets, film, foil, tape, strip and other flat shapes, of plastics, whether or not in rolls</a>"]
A --> U["<a href='/classifications/hs/v2022/3920'>3920: Plastics; plates, sheets, film, foil and strip (not self-adhesive); non-cellular and not reinforced, laminated, supported or similarly combined with other materials, n.e.c. in chapter 39</a>"]
A --> V["<a href='/classifications/hs/v2022/3921'>3921: Plastic plates, sheets, film, foil and strip n.e.c. in chapter 39</a>"]
A --> W["<a href='/classifications/hs/v2022/3922'>3922: Sanitary ware; baths, shower-baths, sinks, wash-basins, bidets, lavatory pans, seats and covers, flushing cisterns and sanitary ware, of plastics</a>"]
A --> X["<a href='/classifications/hs/v2022/3923'>3923: Plastic articles for the conveyance or packing of goods; stoppers, lids, caps and other closures of plastics</a>"]
A --> Y["<a href='/classifications/hs/v2022/3924'>3924: Tableware, kitchenware, other household articles and hygienic or toilet articles, of plastics</a>"]
A --> Z["<a href='/classifications/hs/v2022/3925'>3925: Plastics; builders' wares n.e.c. or included</a>"]
A --> BA["<a href='/classifications/hs/v2022/3926'>3926: Articles of plastics and articles of other materials of heading no. 3901 to 3914, n.e.c. in chapter 39</a>"]

    B --> BB["<a href='/classifications/hs/v2022/391310'>391310: Polymers, natural; alginic acid, its salts and esters, in primary forms</a>"]
B --> BC["<a href='/classifications/hs/v2022/391390'>391390: Polymers, natural and modified natural; in primary forms (excluding alginic acid, its salts and esters)</a>"]


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    classDef highlight color:#000,fill:#fff,stroke:#000,stroke-width:5px



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class T level4
class U level4
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class W level4
class X level4
class Y level4
class Z level4
class BA level4
class BB level6
class BC level6

  class B highlight

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