'Marathon' is the brand of sewing thread which has reached close to 80% share of the Korean market in 1970s, contributing greatly to the development of the Korean sewing and garment industry.
In 1980, significant impact on product quality and price reduction was achieved by developing Korea's first high-strength, low-elongation spun polyester fiber, and in the latter part of 1980's, utilizing its age-old know-how in sewing threads production, Dong-Il succeeded in developing high-quality embroidery threads.
In short, Dong-Il's management concept, which is based on the customer satisfaction, is the driving force behind the formidable growth as a major yarn and knit fabir manufacturer of the world.