|1991.04||Established Sunyoung Industry and started to manufacture the chopped cotton|
|1996.02||Manufactured the milled cotton|
|2003.03||Moved to the city of Yangsan.
Started to manufacture the chopped carbon fiber.
|2005.06||Developed carbon fiber felt|
|2006.05||Manufactured 200um of milled carbon fiber|
|2011.02||Manufactured 6mm chopped carbon fiber sized with PU|
|2016.12||Got the certification of ISO 9001/14001|
|2017.08||To certify as the Venture Business|