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Company

HISTORY

2020~2026

Sustainable Growth and
a Leap into Future Indust

Sustainable Growth and 
a Leap into Future Indust

2026

  • Sustainable Growth and a Leap into Future Industries

2025

  • 01Relocated the Steel Rolling Plant to the Sihwa Industrial Complex
2010 ~ 2019

A Turning Point in Production
Growth and Organiz

A Turning Point in Production 
Growth and Organiz

2015

  • 01Established a Steel Rolling and Slitting Plant in Pyeongtaek

2013

  • 11Appointed Jeong Seung-don as Chief Executive Officer (CEO)
  • 12Expanded Qingdao Sangjin Plant No. 4 (1,300㎡)

2012

  • 08Expanded Qingdao Sangjin Plant No. 3 (4,900㎡)
2000 ~ 2009

Strengthening Manufacturing Competitiveness
and

Strengthening Manufacturing Competitiveness 
and

2008

  • 12Relocated the Slitting Machine at Qingdao Sangjin

2006

  • 10Commissioned Qingdao Sangjin Plant No. 2 (4,792.61㎡)

2005

  • 04Commissioned Qingdao Sangjin's No. 2 Steel Grating Production Line (GW2)

2004

  • 09Commissioned the 1st Steel Grating Production Line (GW2) in Thailand

2003

  • 05Obtained a License for Steel Grating Manufacturing and Sales for the Thailand Subsidiary

2002

  • 10Merged with Qingdao Sangjin Co., Ltd. (Head Office: Songjeong-dong, Gwangsan-gu, Gwangju Metropolita

2000

  • 07Expanded the Steel Grating Production Line at Qingdao Sangjin (Facility Area: 11,500㎡)
1990 ~ 1999

Advancing Facilities and
Strengthening Manufactu

Advancing Facilities and 
Strengthening Manufactu

1996

  • 01Expanded the Qingdao Plant (Facility Area: 5,200㎡)

1991

  • 10Expanded the Steel Grating Production Line (GW2)

1990

  • 12Commissioned a High Value-Added (GRS) Production Line (1.5m × 12m × 1t)
1980 ~ 1989

Launching the Manufacturing Line,
Building Indus

Launching the Manufacturing Line, 
Building Indus

1989

  • 01Expanded the Steel Grating Production Line (GW2)
  • 04Commissioned the 2nd GRS Production Line (1.5m × 7.2m × 1t)

1988

  • 07Commissioned the 1st GRS Production Line (1.5m × 4.2m × 1t)
  • 09Commissioned the 4th Steel Grating Production Line (GW1)

1986

  • 04Established a Second Plant (1,500㎡)
  • 08Commissioned the 3rd Production Line (GRS) (1.5m × 10.5m × 1t)

1984

  • 09Obtained an Import and Export License
1969 ~ 1979

Established a Strong Foundation
and Entered Manu

Established a Strong Foundation 
and Entered Manu

1979

  • 10Expanded the 1st Steel Grating Production Line (GW1)

1977

  • 07Established the Busan Plant (Steel Grating and Other Steel Products Manufacturing & Sales)

1970

  • Incorporated as Sangjin Development

1969

  • Founded Sangjin Development Co., Ltd.
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