- Review of the various Personal mobility platforms for eco-friendly city
- The collaboration among DIRG for the green community island
- Proposal of new tranportation concept with Charge free Personal Mobility system
- Short review for the Green Mobility’s business.
- 2012-Present : CEO, Green Mobility Co., Ltd
- 2007-2012 : CTO, S&T Motors
- 2006-2007 : Director, S&T Daewoo
- 1984-2006 : Director, Daewoo Precision