Since its establishment in 2010, SJ Tech specializes in composite materials that form the basis of various industries such as shipbuilding, offshore plants, internal combustion engine vehicles, eco-friendly vehicles (electric vehicles/hydrogen vehicles), exterior insulation materials for construction, and thermal insulation materials. We are a manufacturing company. ​​

Based on various materials such as aluminum, glass fiber, carbon fiber, polyester, etc., we have developed basic composite materials to realize functional materials such as thermal insulation, electronic shielding, heat reflection, and sound absorption for various industries. We are striving for continuous growth as a major company with the best technology and quality competitiveness.