Since established in 1987, DAEHAN i. m. Co., Ltd. has been a leading manufacturer and supplier of geosynthetics in Korea. DAEHAN is specialized in manufacturing, supplying, consulting, researching & developing geosynthetic products for stabilization and reinforcement of soil structures, erosion control and drainage.

DAEHAN is certified by ISO 9001:2000 and has received A Certificate of Product Reliability ¡°R-mark¡± from Ministry of Commerce, Industry & Energy and A Quality Certificate ¡°Q-mark¡± from FITI. DAEHAN has achieved A Certificate of Management Innovation Business ¡°MAINBIZ¡± from Small and Medium Business Administration of Korea.

DAEHAN has supplied PVD for mega projects such as Pusan Newport, Gwangyang Port, Incheon International Airport, West Coast Expressway, Busan Gyeongnam Race Park, Singapore Changi International Airport, Vietnam International Port and many others. Especially, DAEHAN occupies more than 70% market share of prefabricated vertical drains(PVD) in Korea. And also DAEHAN exports its quality products to overseas markets such as Japan, Australia, Singapore, Hong Kong, Vietnam, Indonesia and countries of the Middle East. DAEHAN provides customers with the highest quality products and competitive services. DAEHAN is the first company in the world to successfully establish fully automated PVD production lines and as of now DAEHAN has the world largest production capacity of PVD.

DAEHAN was the first developer and manufacturer of the new type of PVD available for soft ground improvement at great depths in Korea. DAEHAN supplied amounts of more than 100 million meters of PVD for Pusan New Port project which has maximum installation depth of 50m. Recognized for a great performance, DAEHAN received the Great Prize of Civil Engineering in the section of geosynthetic & construction material production in 2003 from Korean Society of Civil Engineers.