In 1990, establishes manufacture and construction industry by Seoil fine chemicals reciprocity and does incorporation by reciprocity for Ltd. hidden scholar in March, 2011 while operate and Ltd. hidden scholar is operated because manufacturing industry, Seoil fine chemicals sorts category of business by construction industry. Enroll 14 charters and 2 flooring material Chinhwangyeongpyojiinjeungs as management system that sell and construct making epoxy product and active conduct business.