2020.12Iron ore production of 860,000 ton per year achieved

2020.09Completion of Phase-1 Tunnel Construction for IBS Cosmic Particles Research Facility

2019.03Construction of No.2 Shaft completed

2018.11Merger with Daelim E&C

2017.01Construction in progress of research facility of Institute for Basic Science at 1,000m underground

2016.12Addition to SM Group as a subsidiary

2016.09Registration of transfer of mining right to Handuk Iron Mine Co., Ltd.

2014.01Commencement of construction of No.2 Shaft Facility (Length: 627m, Diameter: 6m)

2012.03Reprocessing of low quality through completed construction of wet dressing plant (processing volume: 300,000 ton/year)

2009.03Construction of dry dressing plant completed (processing volume: 1.5 million ton/year)

2006.04Acquisition of mining rights and assets of Samsun Logix and Handuk Iron Mine Co., Ltd.

2005.03Construction of No.1 Shaft and breaking ground within the shaft completed (processing volume: 250,000 ton/year)

1991.04Commencement of development of in-shaft automation through Rampway

1990.03Procurement of massive iron ore deposit through drilling-support exploration of Korea Resource Corporation

1983.03Registration of transfer of mining right from Sungjin Iron Mine Co., Ltd.

1916.10Establishment and registration of mining rights (iron, lead-zinc, molybdenum)