Polyesters; n.e.c. in heading no. 3907, saturated, in primary forms

HS v2022 Code: 390799

About polyesters; n.e.c. in heading no. 3907, saturated, in primary forms

HS code 390799 covers a broad range of saturated polyester products in primary forms, excluding those more specifically classified elsewhere. These polyesters are essential materials for a diverse array of industries, from packaging and textiles to automotive and construction. As a versatile and durable synthetic polymer, polyesters play a crucial role in the global economy, enabling the production of a wide variety of consumer and industrial goods.

Production process

The production of polyesters classified under HS code 390799 typically involves the polycondensation of dicarboxylic acids and dihydric alcohols. This process is carried out under controlled temperature and pressure conditions, often with the use of catalysts to enhance the reaction. The resulting polyester polymers are then extruded or molded into various primary forms, such as pellets, sheets, or fibers, ready for further processing or incorporation into end products.

Production inputs

The main inputs required for the production of polyesters under HS code 390799 include dicarboxylic acids (such as terephthalic acid or isophthalic acid) and dihydric alcohols (such as ethylene glycol or propylene glycol). Additionally, the industry relies on specialized machinery and equipment for the polycondensation, extrusion, and molding processes. Energy sources, such as electricity or natural gas, are also essential for powering the production facilities.

Production outputs

Polyesters classified under HS code 390799 are widely used as raw materials for the manufacture of a diverse range of products. These include 392010 Plates, sheets, film, foil and strip, of plastics, non-cellular and not reinforced, laminated, supported or similarly combined with other materials, 540233 (Textiles; synthetic filament yarn, including synthetic monofilament of less than 67 decitex, multiple (folded) or cabled yarn, other than sewing thread, of polyesters, not put up for retail sale), and 870321 Motor cars and other motor vehicles principally designed for the transport of persons, with spark-ignition internal combustion reciprocating piston engine of a cylinder capacity not exceeding 1,000 cc. The versatility of these polyesters allows them to be incorporated into a wide array of consumer and industrial applications.

Revisions to 390799

Classification codes are adjusted frequently. The code may have been revised or replaced between system versions. The table below shows the history (newest to oldest) of the code 390799. The most recent 1 version of this code (390799) is in the HS v2022 system (this version):

This page shows the most recent version of code 390799.

Family tree for polyesters; n.e.c. in heading no. 3907, saturated, in primary forms

    graph LR
    A["<a href='/classifications/hs/v2022/39'>39: Plastics and articles thereof</a>"]
A --> B["<a href='/classifications/hs/v2022/3907'>3907: Polyacetals, other polyethers and epoxide resins, in primary forms; polycarbonates, alkyd resins, polyallyl esters and other polyesters, in primary forms</a>"]
B --> C["<a href='/classifications/hs/v2022/390799'>390799: Polyesters; n.e.c. in heading no. 3907, saturated, in primary forms</a>"]

    B --> D["<a href='/classifications/hs/v2022/390710'>390710: Polyacetals; in primary forms</a>"]
B --> E["<a href='/classifications/hs/v2022/390721'>390721: Polyethers other than polyacetals; in primary forms, bis(polyoxyethylene) methylphosphonate</a>"]
B --> F["<a href='/classifications/hs/v2022/390729'>390729: Polyethers other than polyacetals, and bis(polyoxyethylene) methylphosphonate; in primary forms</a>"]
B --> G["<a href='/classifications/hs/v2022/390730'>390730: Epoxide resins; in primary forms</a>"]
B --> H["<a href='/classifications/hs/v2022/390740'>390740: Polycarbonates; in primary forms</a>"]
B --> I["<a href='/classifications/hs/v2022/390750'>390750: Alkyd resins; in primary forms</a>"]
B --> J["<a href='/classifications/hs/v2022/390761'>390761: Poly(ethylene terephthalate); in primary forms, having a viscosity of 78ml/g or higher</a>"]
B --> K["<a href='/classifications/hs/v2022/390769'>390769: Poly(ethylene terephthalate); in primary forms, having a viscosity of less than 78ml/g</a>"]
B --> L["<a href='/classifications/hs/v2022/390770'>390770: Poly(lactic acid); in primary forms</a>"]
B --> M["<a href='/classifications/hs/v2022/390791'>390791: Polyesters; n.e.c. in heading no. 3907, unsaturated, in primary forms</a>"]

    

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class J level6
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