EVA Resin is a thermoplastic resin polymerized from ethylene and vinyl acetate through high-pressure bulk polymerization, and it is the fourth largest ethylene series polymer. Its performance is determined by vinyl acetate (VA) content and melt flow rate. Different VA contents correspond to different application scenarios: low content is suitable for films and injection molding, medium content for foamed shoe materials and cable insulation, and high content for hot melt adhesives and elastomers. It is mainly applied in photovoltaic film, foamed shoe materials, wires and cables, hot melt adhesives, agricultural films and other fields, with photovoltaic grade being the most important application category at present.