Daejin Co., Ltd. is a company specializing in eco-friendly building materials and renewable energy, established in 2011. With a factory located in Gyeongsan-si, Gyeongsangbuk-do, it manufactures products such as soundproofing materials for inter-floor noise, insulation, and natural ventilators, led by CEO Lee Jong-won.

"Since its establishment in 2011, Daejin Co., Ltd. has grown by pursuing innovation in the fields of eco-friendly building materials and renewable energy. We are dedicated to providing products for a sustainable future by focusing on the development of inter-floor noise reduction technology and natural ventilation systems."

Business Areas

• Manufacturing and Supply of Eco-friendly Building Materials: We specialize in manufacturing and supplying eco-friendly building materials such as inter-floor noise buffering materials, insulation, and natural ventilators used in apartment buildings. We have supplied products to approximately 90,000 households nationwide, earning recognition for our quality.
• Research and Development of Renewable Energy Systems: We are actively engaged in research and development in the renewable energy sector, including concentrated daylighting louvre systems, vertical solar towers, and photovoltaic thermal (PVT) systems. We focus on technological innovation for a sustainable future.
• Construction Business: We are registered and operating in various construction-related businesses, including plastering, waterproofing, masonry, interior construction, and heating installation. This creates synergy with our company's main product lines.

Products

• Inter-floor Noise Reduction Material: This is a buffering material used as flooring in apartments to minimize impact vibration and contribute to reducing inter-floor noise. We are strengthening our technological capabilities through joint development with national research institutions.
• Insulation Material: We produce various types of insulation materials, including bead-type, extruded, rigid, and rigid urethane, which are used to enhance the energy efficiency of buildings. We provide a comfortable living environment through insulation performance.
• Natural Ventilator (Fresh Vent): This is a system installed as a window type that blocks the inflow of outdoor pollutants and pests while facilitating natural ventilation. It maintains a comfortable indoor air quality using a high-performance filter.

Special Notes

• Unrivaled Expertise in Inter-floor Noise Buffering Materials: We have built high trust in the market by supplying inter-floor noise buffering materials to approximately 90,000 households nationwide. We continuously strengthen our technological capabilities through joint development with the Korea Institute of Civil Engineering and Building Technology.
• Eco-friendly and Renewable Energy Technology Innovation: Our eco-friendly technological capabilities are externally recognized through certifications such as Venture Company, the Grand Prize in the New Technology category at the Korea Urban Innovation Industry Expo, and selection as Korea's Green Product of the Year.
• Continuous Investment in Research and Development: We established a technology research institute in 2017 and have been consistently investing in R&D to focus on new product development and technological advancement. This allows us to respond flexibly to changing market demands.

💡 A Word from JobPloy
Daejin Co., Ltd. is a company that manufactures eco-friendly building materials such as inter-floor noise materials, insulation, and natural ventilators, and researches renewable energy. It is expected to have many manufacturing and construction-related positions, and roles such as quality control, production, and construction support may be performed. Interest in eco-friendly technology and meticulousness are important, and it is necessary to work safely by demonstrating teamwork.