1993. 11 : established "HOON SUNG OPTICAL CO." 1994. 10 : the member of "KOREA INTERNATIONAL TRADE ASSOCIATION" 1995. 11 : "KOREAN PRODUCTION EXHIBITION" opened booth in CHILE 1996. 02 : the member of " KOREA TRADE - Investment Promotion Agency" 1999. 09 : moved to new factory 2000. 02 : the member of "KOREA OPTICAL INDUSTRY COOPERATIVE" 2000. 06 : certified "CE MARK" 2000. 08 : certifying ISO9002 opening a booth at "HONG KONG OPTICAL FAIR" & "SILMO"