Brief history
- Founded in 1988 as JYK consulting & trading
- Transformed to ONSE INC. in 1997
- Started lapping carrier in 1998
- ISO 9001 certification in 2001
- Moved to Gimpo (Tongjin) factory in 2008
- Started Polishing carrier in 2012
- Merged to Speedfam/Obara Group in 2018
- Moved to Gimpo (Hakwoon) factory, March 2020