September, 2005
Young Chang Resources Co., Ltd. established

October, 2005
Completion of Wonju Plant, Yongchang Resource Co., Ltd.

November, 2005
Yongchang Resources Co., Ltd. Wonju Factory Raw materials and paper factory shipped

October, 2008
Completed construction and operation of Jin-Heung Resources Co., Ltd. Yeoju factory

November 2009
Completed construction and operation of Mouri Resources Co., Ltd. Ilsan Plant

July, 2015
Jin-Heung is transformed into a corporation and expanded

September, 2016
jungbu Corporation established

January, 2019
YC(YUNGCHANG) Co. established