Sejin Valve Ind. Co., Ltd.

Sejin Valve Industry Co., Ltd. is a representative Korean specialist valve manufacturer based in Busan, producing special products for every place valves are needed, from daily life to specialised industrial fields. Its valve business provides core technology for controlling and regulating fluid flow across petrochemical, energy, water treatment, and shipbuilding industries, with products including butterfly valves, check valves, gate valves, cryogenic and other special valves, ball valves, and globe valves, increasingly incorporating smart valve and eco-friendly technologies that reflect market demands.

Beyond its valve business, the company actively contributes to the SOC (social overhead capital) sector, supporting construction and maintenance of national core infrastructure by combining digital transformation and eco-friendly technologies with smart infrastructure solutions. Sejin Valve is also engaged in the defence industry, developing and producing weapon systems, military equipment, and defence technologies including AI, drone, and cyber defence capabilities. The company maintains R&D activities, QC/QA systems, certification records, E-catalogues, and a record of major project references.