Sejin Industry Co., Ltd. , established in 1989, is a leading company in the field of manufacturing marine module units and engine piping. Headquartered in Seongsan-gu, Changwon-si, Gyeongnam, the company is led by CEO Jun-hyeok Yoon. The company specializes in the production of core equipment for key national industries such as shipbuilding, marine engines, defense, and power plants, and employs approximately 70 staff members.

Founded in 1989 by passionate employees, Sejin has established itself as a leader in the manufacturing of marine module units and engine piping. Pursuing a customer-centric approach and prioritizing quality, we are committed to building a competitive production system and enhancing our technological capabilities, aiming to grow into a top enterprise in both domestic and international markets. Our parent company, Sejin Industry Co., Ltd., and its affiliates provide expertise across diverse fields, including engine piping, design and manufacturing of shipbuilding equipment, small and medium-sized hull block assembly, and the development of eco-friendly equipment.

Business sectors

• Manufacturing of structural metal plate products and workpieces: Manufactures structural metal plate products and workpieces, including ship engine parts, and commenced the business on October 1, 1996.
• Shipbuilding and Marine Engine Business: Specializing in the fabrication of marine module units and engine piping, including the production and assembly of shipbuilding equipment, small and medium-sized blocks, low and medium-speed engine piping, and the development and supply of SCR units.
• Defense and Power Plant Business: We produce engine pipes and piping systems for the land and sea defense industries, and conduct container and diesel power plant businesses.

Products

• Ship Module Unit: We produce various ship module units such as Tank Top Unit, FO Supply Unit, BWTS Module, Block Assembly, etc.
• Engine Piping: We manufacture marine and defense engine piping, including Engine Pipe, Cargo Pipe, Classification Pipe, Defense Piping, Low/Medium Speed ​​Exhaust/Hyd Pipe, Fuel Line Assy, etc.
• SCR Unit: As a core piece of De-NOx eco-friendly equipment compliant with IMO Tier-III environmental regulations, its main products include Dosing Units, Pump Units, and Soot Blowers.

Special Features

• Unrivaled Technology and Expertise: We possess unrivaled technology and know-how in the field of manufacturing marine module units and engine piping accumulated since 1989, and we demonstrate strength in the production of special piping and module units requiring high precision and durability.
• Top-tier Quality and Certification: Pursuing a customer-centric approach and prioritizing quality, we provide highly reliable products by establishing a competitive production system and modernized quality and management systems.
• Continuous Business Expansion and Future Growth Drivers: We contribute to various national key industries such as shipbuilding, marine engines, defense, and power plants, while expanding our business scope into the future energy infrastructure market, including ultra-high pressure hydrogen pipelines.

Job Information

• Major Recruitment Positions: Job postings are found for manufacturing and production-related roles, primarily production staff, simple finishing workers, and experienced quality assurance team members.
• Benefits: We provide the four major insurances (National Pension, Health Insurance, Employment Insurance, and Industrial Accident Insurance) and support lunch.

💡 A word from Jobploy
Sejin Industry Co., Ltd. is a technology-intensive small but strong company that produces core components for the shipbuilding, marine engine, and defense sectors. Positions are primarily in production or quality control, where precise work and adherence to safety regulations are critical. As a foreign worker, understanding Korea's industrial safety standards and teamwork culture, and actively participating will provide an excellent opportunity to grow with the company.