Sejin Polymer Co., Ltd. is a rubber packing manufacturer located at 19 Dalseo-daero 58an-gil, Dalseo-gu, Daegu. Led by CEO Kim Man-hyun, it is a company with 20 employees, specializing in the manufacturing and production of compounded rubber.

"Established in Daegu Metropolitan City in 2012, Sejin Polymer Co., Ltd. is a technology-intensive hidden champion that has grown by specializing in the production of compounded rubber (CMB), a core material for the automotive industry, and various industrial rubber products. Based on advanced compounding technology and precise process control capabilities, we supply products that meet the strict quality standards of the automotive parts industry. As of 2024, we have achieved sales of approximately 6.9 billion won, maintaining a solid financial structure and growth trajectory. In particular, beyond simple manufacturing, we are dedicated to introducing smart factories and developing eco-friendly polymer materials, thereby achieving process efficiency. A major strength is our proprietary rubber sheet air-cooling and cutting system, which simultaneously ensures worker safety and product quality uniformity. Through continuous R&D investment and process innovation, we are leaping forward as a leading company in next-generation materials, responding to the future mobility market."

Business Areas

• Manufacturing and Supply of Compounded Rubber (CMB) for Automobiles: We are engaged in the core business of supplying high-quality compounded rubber (Carbon Master Batch) to primary and secondary suppliers of major finished vehicle manufacturers such as Hyundai and Kia Motors. Through precise compounding technology for rubber materials directly related to vehicle performance, we provide solutions that maximize the wear resistance and heat resistance of parts.
• Production of Various Industrial Rubber Products: We specialize in producing rubber products used in various industrial sectors beyond the automotive industry. Based on our specialized technology in rubber packing manufacturing, we provide products tailored to the needs of various industries.

Products

• Compounded Rubber (CMB): We manufacture and supply compounded rubber (Carbon Master Batch), a core material used in the automotive industry. It is a high-quality rubber material that contributes to increasing the wear resistance and heat resistance of vehicle parts.
• Rubber Packing: Rubber packing, utilized for various industrial purposes, is our main product. Based on our expertise in rubber packing manufacturing, we produce products of various specifications and uses.

Special Notes

• Advanced Compounding Technology and Precise Process Control: We possess advanced compounding technology and precise process control capabilities that meet the strict quality standards of the automotive parts industry. This ensures the quality and reliability of our products.
• Introduction of Smart Factory and Development of Eco-friendly Polymer Materials: Beyond simple manufacturing, we are dedicated to introducing smart factories and developing eco-friendly polymer materials, thereby achieving process efficiency. Through continuous R&D investment, we lead the way in next-generation materials for the future mobility market.
• Proprietary Rubber Sheet Air-cooling and Cutting System: Our proprietary rubber sheet air-cooling and cutting system simultaneously ensures worker safety and product quality uniformity. This is a significant strength that enhances production process efficiency and product stability.

Recruitment Information

• Main Hiring Positions: We primarily recruit production line employees, rubber compounding manufacturing roller operators, and apprentices.
• Benefits: Meals are provided (1 meal), and employees are enrolled in the four major social insurances, including National Pension, Employment Insurance, Industrial Accident Compensation Insurance, and Health Insurance. A severance pay system is also in operation.

💡 A Word from JobPloy
Sejin Polymer Co., Ltd. is a manufacturer of rubber packing and compounded rubber. Production line roles primarily involve rubber compounding and roller operations. Adherence to safety regulations and continuous skill acquisition are important, and this can be a good opportunity for foreign workers looking to build a career in the manufacturing sector. Please check the welfare benefits provided by the company, such as meals, the four major social insurances, and severance pay.