Sejin Industry Co., Ltd. is a steel pipe manufacturer located in Dangjin, South Chungcheong Province, led by CEO Shin Dae-gyun. It specializes primarily in pipe processing and the manufacturing of fire protection piping, and employs approximately 67 staff members.

Since its establishment in 2007, Sejin Industry Co., Ltd. has been a small giant that has secured unrivaled technological capabilities and market position in the fields of fire protection branch piping manufacturing and precision pipe machining. With a production base located in the Dangjin Industrial Complex in South Chungcheong Province, the company reliably supplies fire protection piping—an essential material for fire prevention—to major construction sites nationwide by producing it using state-of-the-art automated facilities.

Business sectors

• Manufacturing and Supply of Firefighting Branch Piping to Construction Sites: We specialize in designing and manufacturing firefighting branch piping to ensure a rapid and stable supply of firefighting water in the event of a fire, supplying them to major construction companies and specialized firefighting equipment firms.
• Pipe Contract Manufacturing: Based on our technical expertise in the field of precision pipe machining, we provide pipe contract manufacturing services tailored to the diverse needs of our clients.

Products

• Fire Sprinkler Branch Pipe: As a core component that distributes water from the main piping of a fire fighting system to individual sprinklers or heads, it is a specialized product requiring pressure resistance to withstand high water pressure and precise machining.
• Pipes and Fire Piping: We manufacture pipes and fire branch piping for various applications, and have obtained numerous KFI certifications, particularly regarding fire piping fittings and branch piping.

Special Features

• Unrivaled Technology and Process Innovation: Based on proprietary core technology, we have introduced a state-of-the-art automatic expansion method to dramatically improve the airtightness and durability of pipe connections.
• Strict Quality Control and Certification: We have obtained ISO 9001 Quality Management System and ISO 14001 Environmental Management System certifications, and hold numerous KFI accreditations related to fire extinguishing system pipe fittings and branch piping.
• Market Competitiveness and Expertise: Demonstrates strengths in technological completeness and commercialization capabilities compared to major competitors, and its expertise in the field is confirmed through its patent portfolio and project execution history.

Job Information

• Main Hiring Positions: We are primarily hiring production staff (abrasive paper/foil processing, manufacturing, and simple packaging) and CAD operators.
• Benefits: We provide the four major insurances, lunch support, commuter bus service, dormitory accommodation, summer vacation allowance, holiday allowance, annual leave allowance, congratulatory and condolence leave and cash, performance bonuses, designated parking, etc.

💡 A word from Jobploy
Sejin Industry Co., Ltd. is a specialized company in the manufacturing of fire protection branch piping and pipe processing, offering excellent opportunities for foreign workers interested in production or CAD roles. The company holds quality and environmental management system certifications and supports a stable working environment by providing various benefits, including dormitories, commuter buses, and meal support. In particular, as there may be a significant amount of work involving the handling of automated equipment, a proactive attitude toward acquiring relevant technical skills is essential.