1. Automotive Industry Manufacturers and Tier-1/2 suppliers producing seals, gaskets, hoses, vibration dampers, and interior/exterior plastic parts. Typical end users: Japanese, Korean, and Vietnamese automotive assemblers. 2. Electrical & Electronics Companies producing electrical connectors, insulation components, housings, and precision plastic/rubber parts. Includes both domestic factories and Japanese FDI companies. 3. Construction & Building Materials Producers of sealants, gaskets, profiles, and façade components (e.g., window and door manufacturers). 4. Household Appliances & Consumer Goods Manufacturers of plastic housings, grips, switches, and accessories for home appliances. 5. Industrial Rubber & Plastic Processing Compounders, extrusion and injection molding companies using synthetic rubber and engineering plastics as raw materials.