Cheonghae Contech Co., Ltd. is a startup established in December 2022 by CEO Koo Min-seok, specializing in the manufacturing of concrete civil engineering materials and structures. It operates a factory in Hongcheon-gun, Gangwon Special Self-Governing Province, producing various concrete products such as culverts, retaining wall blocks, and manholes.

"Cheonghae Contech is a startup established in December 2022 by CEO Koo Min-seok, directly producing and manufacturing concrete civil engineering materials and concrete structures. It has a 3,000-pyeong self-owned factory and automated facilities in Hongcheon-gun, Gangwon Special Self-Governing Province, and began full-scale production in 2024. Since the establishment of the factory, it has acquired national standards such as KS certification and group standard certification, and has registered its products on the Public Procurement Service's Nara Jangteo Comprehensive Shopping Mall, generating government-supplied sales."

Business Areas

• Manufacturing of Concrete Civil Engineering Materials and Structures: The company directly produces and manufactures various concrete civil engineering materials and structures, such as culverts, retaining wall blocks, and manholes. These products are used as basic structures in land development and construction sites.
• Development and Production of Gravity-Type Landscape Retaining Wall Blocks: The company develops and produces gravity-type landscape retaining wall blocks that enhance structural stability, anti-overturning, drainage performance, and aesthetic elements compared to existing products. The wet concrete manufacturing method improves compressive strength by 1.5 times, making them landscape retaining wall blocks applicable not only in mountainous development but also in urban areas.

Products

• Culverts: One of Cheonghae Contech's flagship products, with an annual production capacity of 20,000 units. It has obtained national standards such as KS certification and group standard certification, earning recognition for its quality and reliability.
• Retaining Wall Blocks: These are P·C (Precast concrete) blocks constructed to prevent soil erosion and stabilize slopes during land development. They apply a wet concrete manufacturing method, which improves compressive strength by 1.5 times compared to existing dry concrete products.
• Manholes: Manholes are key concrete civil engineering materials produced by Cheonghae Contech, along with culverts and retaining wall blocks. They are applied in various construction sites, fulfilling their functions.

Special Notes

• Acquisition of National Standard Certification: Since the establishment of the factory, the company has promptly acquired national standards such as KS certification and group standard certification, officially recognizing the quality and reliability of its products.
• Automated Facilities and Production Capacity: Equipped with a 3,000-pyeong self-owned factory and automated facilities, the company has established an efficient production system, securing an annual production capacity of 20,000 culverts.
• Innovative Product Development: The company focuses on technological innovation by developing gravity-type landscape retaining wall blocks that improve upon the shortcomings of existing retaining wall blocks, enhancing structural stability, drainage performance, and aesthetic elements.

💡 A Word from JobPloy
Cheonghae Contech Co., Ltd. is a company that manufactures concrete products, and foreign workers can primarily perform duties such as production line operation, material management, and quality inspection. As quality and safety are crucial for concrete products, it is important to strictly adhere to safety regulations during work and accurately understand product specifications and quality standards. Due to the nature of manufacturing, physical labor may be required, and collaboration skills with colleagues are also important.