STI Co.Ltd, the Optical Fiber Preform manufacturing company that is located in Dalseong-gun, Daegu, has exceeded 97% of its overseas sales for the past 3 years. 

Optical fiber preform which consists of glass is a core material for the optical fiber that forms basis of 5th generation communication network.

Mr. Seo, the CEO, has suffered twists and turns as orders were cut off when a client company was sold to overseas. 

However, he succeeded to stand on his own through development of new technology and entering overseas markets. 

He said "I was able to change crisis to opportunity as I persisted in Global No.1 products." and "I'm planning to develop a Unicorn company which is optical fiber-based in 4th industrial revolution era."

Reference

Hankyung News, Journalist Jin-su Kim

http://news.hankyung.com/article/2018092722461>