The main production processes include suspension polymerization, emulsion polymerization, and bulk polymerization, with suspension polymerization being the most widely used. In suspension polymerization, for example, vinyl chloride monomer is dispersed into fine droplets in an aqueous phase with the help of a dispersant. Simultaneously, polymerization occurs under the auspices of an initiator. During this process, precise control of key parameters such as reaction temperature, pressure, and initiator dosage ensures the production of Hygain PVC resin that meets quality standards. Different production processes affect the resin’s particle morphology and molecular weight distribution, which in turn determine the final product’s performance and application prospects.