2018.01.Certified for IATF16949;2016
2010.03.Established DYG, Tianjin, China
2009.01.Established DYH ( CYL.HEAD remanufacturing)
2006.06.Registered with TATADAEWOO partner company
2005.04.Certified for ISO/TS-16949
2004.06.Doosan Infracore EURO-3 Yangsan (DL08,DL06,DV11)
2001.05.Secured a technical association with Sanwa Packing, Japan


1999.10.QS-9000/ISO9001 CERTIFICATION
1999.06.Established a technical institute
1998.09.Awarded Daewoo Heavy Industry’s best product quality award
1995.10.Secured a technical association with Isano Gasket, Japan
1995.10.Registered with Samsung Motors partner company


1989.04.Registered with Daewoo Heavy Industry partner company
1986.05.Registered with Samsung Heavy Industry partner company
1983.10.Registered with KIA MOTORS partner company
1982.08.Certified for KS standard of automobile ( CYL.HEAD GASKET)
1980.12.Moved to the current site in Banwol industrial complex
1970.07.02.Established Dong Yang Jeongmil Gasket in Doksan-dong, Seoul