Styrene polymers; styrene-acrylonitrile (SAN) copolymers, in primary forms

HS code 390320 covers styrene polymers and styrene-acrylonitrile (SAN) copolymers in their primary forms. These materials are widely used in the manufacturing of a diverse range of products, from packaging and construction materials to consumer electronics and automotive components. As a key input for many industries, the 390320 product group plays a vital role in the global economy, supporting the development of essential goods and technologies.

Styrene polymers and SAN copolymers are typically produced through polymerization processes. Styrene monomers are combined with acrylonitrile monomers and subjected to heat, pressure, and catalysts to form the desired polymer chains. The resulting material is then extruded or molded into pellets, sheets, or other primary forms for further processing and manufacturing.

The primary inputs for the 390320 industry include petrochemical feedstocks such as benzene and ethylene, which are used to produce the styrene and acrylonitrile monomers. Specialized production equipment, such as polymerization reactors, extruders, and molding machines, are also essential for the manufacturing process. Additionally, the industry relies on a skilled workforce to operate the production facilities and ensure quality control.

The 390320 product group is a key input for a wide range of downstream industries. The styrene polymers and SAN copolymers are used to manufacture a variety of products, including 392010 Plastic plates, sheets, film, foil and strip, not reinforced, laminated, supported or similarly combined with other materials, 392030 Plastic monofilament of which any cross-sectional dimension exceeds 1 mm, rods, sticks and profile shapes, whether or not surface-worked but not otherwise worked, and 392190 Other plates, sheets, film, foil and strip, of plastics. These materials are also used in the production of 940320 Furniture of plastics, 853710 Boards, panels, consoles, desks, cabinets and other bases, equipped with two or more apparatus of heading 8535 or 8536, for electric control or the distribution of electricity, and 870810 Bumpers and parts thereof, for motor vehicles.