2015. 01.		●	Obtained Innobiz certification
2014. 05.		●	Obtained MAIN BIZ certification
2014. 04.		●	Established a research and development department
2013. 03.		●	Acquired certificate of semi-nonflammable material for interior decoration
2013. 01.		●	the 1st MBC Architecture Expo participated
2012. 11.		●	Changed company name to Haesal from Sun Corporation
2012. 07.		●	Registered agricultural machinery company in Korea for the support of Korea Agricultural Cooperative Association
2012. 05.		●	Registered patent (greenhouse far infrared heater)
2012. 03.		●	Registered as a Samsung Heavy Industry cooperative company
2011. 10.		●	Nara Market unit price registration at the Public Procurement Service
2011. 09.		●	Registered as a venture company
2011. 08.		●	Registered patent (Remote centralized management system of far infrared heater)
2010. 12.		●	Registered patent (Far Infrared heating device for desk)
2010. 10.		●	Registered patent (Functional paint with antimicrobial, deodorizing and storage function)
2010. 01.		●	Collaborated with Nano-electrochemistry Laboratory of Materials Science and Engineering, Pusan National University
2009. 07.		●	Registered patent for far-infrared heating device
2009. 06.		●	Registered trademark for "LikeForest"
2008. 08.		●	Registered "LikeSunshine" as a heating device
2008. 01.		●	Changed into a corporation (Company name: Sun Corporation)
2006. 11.		●	Acquired "LikeSunshine" safety certification for electric appliances
2006. 09.		●	Changed company name (Sun Corporation)
2005. 07.		●	Established the company (Company name: Korea Energy)