DAOU established in 1991 and supplied car parts to Renault Samsung Electro-Mechanics. The company expended its business in 2003, nearly doubled in manufacturing, and registered as an official part-supplier of Renault Samsung in 2009. Since then, DAOU began supplying car parts to RSM, Hyundai, Kia and GM within Korea and exported to Nissan Spain, Japan and U.K., and Kubota-America. Export sales marked 47% in 2012, 17% increased from 30% in 2011. DAOU achieved R&D certification in Environmental managing system. Current number of employment is 119 people.
DAOU value the partners with the Quality management system. It ensures the customer satisfaction by constant quality control, process control and progressive improvement of the existing or new product. In terms of reliabilities, DAOU products are extremely countable.