Hyein C T Co
* 2002.01 Establish Hyein C T Co. Ltd* 2004.02 Organize manufacturing bolt factory.* 2008.09 Sign an MOU with Gwangju institute of Science and Technology and Research department. * 2010.03 Organize a venture business. * 2011.12 Acquire 4 patented technologies of Hand Dryer * 2012 .02 Acquire ISO 9001 & Register products from Public Procurement Service in Korea.* 2013 .11 Register company from Gwangju City Hall* 2014.01 Acquire patented air sterilization.* 2016.12 Complete air sterilization system.