Polyvinyl chloride (PVC) is one of the world’s most widely used plastics, found in pipes, cables, flooring, profiles, and countless industrial applications. A critical step in manufacturing PVC involves suspension polymerization, a process in which vinyl chloride monomer (VCM) droplets are polymerized in water. To ensure stable polymerization and high-quality PVC resin, manufacturers rely heavily on suspending agents. These specialized additives play a vital role in controlling particle size, maintaining dispersion stability, and ensuring consistent resin performance.