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History
The Challenge sprit and valued investment for customer satisfaction

2015. 03 Mineral Block Plant begins Operation
2012. 05 Refractories for Kiln Furniture Plant begins Operation
2010. 04 Functional Refractories Plant begins Operation at Masan Factory
2008. 09  Zibo Dongkuk Co. Ltd(Joint Venture in China)
           07 Attained NSF/ANSI 61 Certification
           01 Company Name Changed to Dongkuk R&S co. Ltd
2007. 09 Acquired Dong Myung Industries co. Ltd (Current Namyang Factory) – Begins Steel/Building Material Business
2006. 02  Dongyeon S&T Co. Ltd established (Subsidiary)
2004. 09 Yinkou New East Refractories Co., Ltd established (Joint Venture in China)
2004. 02 Listed on KODAQ
2004. 01 Company Name Changed to Dongkuk Refractories co. Ltd
2003. 12 Material Division separates from Dongkuk Industries co. Ltd for Enterprise Rationalization
2003. 11 Attained KS Q ISO 14001
2000. 06 Construction of Ferrite Plant completed(Busan)