Daewoo Sunjae Co., Ltd. is a specialized steel wire manufacturing company established in 1987, with its headquarters and factory located in Chungju, Chungcheongbuk-do. It produces various steel wires, including cold heading quality steel wire (CHQ-Wire), which are used as core components in the automotive, construction, and electronics industries, contributing to the development of the domestic basic materials industry based on its unique technology and quality.

"Starting in Seongsu-dong, Seoul in July 1987, Daewoo Sunjae Co., Ltd. expanded its production facilities to an annual capacity of 60,000 tons by constructing a new factory in Pocheon in 1997, followed by another in Chungju in 2011. Through the newly established phosphate and lime coating facilities and expanded spheroidizing heat treatment furnaces, we are achieving improved customer productivity and enhanced quality, establishing ourselves as a CHQ product material manufacturer supplying materials for automotive bolts and nuts."

Business Areas

• Production and Supply of Cold Heading Quality Steel Wire (CHQ-Wire) for Automotive Parts: Daewoo Sunjae specializes in producing and supplying cold heading quality steel wire (CHQ-Wire), which is the raw material for fasteners (connecting parts) such as automotive bolts and nuts, to major automotive parts manufacturers. Based on an annual production capacity of 60,000 tons, we provide products with precise wire diameters and uniform tensile strength tailored to our clients' requirements.
• Manufacturing of Industrial and Construction Steel Wire: We produce steel wires tailored to the demands of various industrial sites, including general industrial steel wire, annealed steel wire for construction, annealed straight wire, rebar tying wire, and precision steel wire for electronic products. These are utilized as basic materials in a wide range of fields such as construction, machine parts, and the electronics industry.
• Expansion of New Business Areas and Research on Lightweight New Materials: In line with the growth of the electric vehicle market, we are conducting research on lightweight new materials such as titanium, magnesium, and aluminum instead of steel, securing future growth engines. We are also exploring business expansion into various new markets such as shipbuilding, aerospace, and defense.

Products

• Cold Heading Quality Steel Wire (CHQ-Wire): High-quality steel wire used as a core raw material for fasteners such as automotive bolts and nuts. It boasts excellent workability and strength through proprietary coating surface treatment technology and spheroidizing heat treatment processes.
• Industrial and Construction Steel Wire: We produce various industrial products such as bolts, nuts, washers, springs, fences, and meshes, as well as annealed wire and rebar tying wire used in construction sites. We provide appropriate wire diameters and uniform tensile strength according to the application.
• Precision Steel Wire for Electronic Products: We manufacture precision steel wire with precise specifications used as components in the electronics industry. We are capable of multi-product, small-batch production to meet the demands of various industries.

Special Notes

• Proprietary Technology and Patents: We produce high-quality, high-value-added products through our proprietary 'coating surface treatment method' patented technology and spheroidizing heat treatment process technology. This improves the machinability and cold workability of products, contributing to increased productivity for our clients.
• Various Quality Certifications and Awards: We have obtained numerous technology and quality-related certifications, including selection as a POSCO Excellent Company, certification as a Promising Small and Medium-sized Enterprise by Chungju City, INNOBIZ certification by the Ministry of SMEs and Startups, Root Technology Specialist Company certification (surface treatment) by the National Root Industry Promotion Center, and Materials, Parts, and Equipment Specialist Company certification.
• Automotive Industry Specialized Competitiveness and Future Response: We possess specialized competitiveness in the automotive parts industry, with approximately 90% of our total sales generated from automotive materials. In response to changes in the electric vehicle market, we are actively pursuing research into lightweight new materials and expanding into new business areas.

Recruitment Information

• Main Hiring Positions: We primarily recruit for shipping management positions, and there may be production and quality control roles related to steel wire manufacturing.
• Benefits: We provide the four major insurances, including National Pension, Employment Insurance, Industrial Accident Compensation Insurance, and Health Insurance, along with severance pay, vehicle fuel expenses, holiday work allowance, and annual/monthly leave allowance. Additionally, we offer welfare benefits such as cafeteria operation, lunch support, and commuting transportation subsidies.

💡 A Word from JobPloy
Daewoo Sunjae Co., Ltd. is a small and medium-sized enterprise with over 30 years of experience in steel wire manufacturing, primarily producing steel wire for automotive parts. There is a high possibility of performing duties such as production, quality control, or shipping management. Precise work and quality control are important, and the company possesses proprietary technology and various certifications. It's good to note that welfare benefits include the four major insurances, severance pay, meal and transportation subsidies. The company is exploring future changes, such as research into new materials in line with the electric vehicle era, so those interested in technological development would find it a good fit.