1967.4	Acquired Samyang Specialty Steel Co., Ltd. Witch was established in April 1966.
1971.11	Completed construction of Samyang's Woolsan Plant.
1974.6	Government approval to become a specialty company.
1977.12	Completed construction of Korea Specialty steel's Changwon plant
1987.3	Public offering of stocks by Sammi Steel Co., Ltd.
1991.4	Completed expansion construction of Changwon Plant which now has a an annual production capacity of 1,000,000 tons.
1994.12	Completed construction of Sammi Steel's ultra-thin sheet and coil plan