Dongil Suji Co., Ltd. is a manufacturer of plastic foam molded products located in Munmak-eup, Wonju-si, Gangwon Special Self-Governing Province. Starting as a packaging material manufacturer in 1982, the company has been manufacturing thermal insulation materials for construction since 1990, with its main business being the manufacturing and sales of Styrofoam and equipment for industrial facilities. The representative is Ahn Il-seop, and currently, 34 employees are working.

"Dongil Suji Co., Ltd. started as a packaging material manufacturer in 1982 and has been manufacturing thermal insulation materials for construction since 1990. To meet the high quality demanded by customers, we operate a quality management system based on KS M 3808, and our management philosophy is to consider customer requests as Dongil Suji's standards. As an environmentally conscious company, we promise 100% satisfaction through continuous research and development and quality innovation."

Business Areas

• Manufacturing and Sales of Thermal Insulation Materials for Construction: We manufacture and sell various Styrofoam products to improve the thermal insulation performance of buildings. This contributes to increased energy efficiency and the creation of a comfortable living environment.
• Manufacturing of Equipment for Industrial Facilities: We produce equipment based on plastic foam molded products used in various industrial sites. We supply products necessary for ensuring overall industrial efficiency and safety.
• Development and Production of Interlayer Soundproofing Materials: We develop and produce soundproofing materials to reduce floor-to-floor noise in multi-family housing. In particular, we are striving to improve the residential environment by developing corrugated interlayer soundproofing materials with excellent noise reduction effects.

Products

• Expanded Polystyrene (EPS) Insulation Boards, Type 1 and Type 2: A representative insulation material used for walls, roofs, and floors of buildings, providing excellent thermal insulation performance and effective for energy saving.
• Rigid Urethane Board: A high-performance insulation material that provides high insulation effects even with a thin thickness, maximizing space utilization and minimizing heat loss in buildings.
• Extruded Polystyrene (XPS) Insulation Boards and Interlayer Soundproofing Materials: Extruded polystyrene insulation boards are resistant to moisture and have high strength, making them applicable to various building parts. Interlayer soundproofing materials are key materials for reducing floor-to-floor noise in multi-family housing.

Special Notes

• Long history and expertise: Based on the accumulated technology and know-how from manufacturing packaging materials since 1982 and thermal insulation materials for construction since 1990, we produce stable products.
• Quality management system and R&D: We operate a strict quality management system based on KS M 3808 and pursue customer satisfaction through continuous research and development and quality innovation.
• Customer-centric management and eco-friendly efforts: We always listen to customer requests and prioritize customer satisfaction through prompt delivery. As an environmentally conscious company, we also promote sustainable development.

💡 A Word from JobPloy
Dongil Suji is a manufacturer of construction insulation and Styrofoam products. There is a possibility of hiring foreign workers primarily for production or site management roles. Adherence to safety rules and teamwork are important during work, and Korean communication skills will be helpful for adapting to the job. The company places importance on quality control, so a meticulous and responsible attitude is required.