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History

With the inauguration of OCI Holdings, we open a new chapter
based on our history of facing challenges and making innovations.

Making <br/>a Second Leap Forward
  • 2025. 3
    • Announced the establishment of a new solar cell subsidiary in Texas, USA
  • 2025. 2
    • Malaysian subsidiary OCIM changed its name to OCI TerraSus
  • 2024. 12
    • Signed a long-term capacity contract for a 120MW ESS with CPS Energy in the U.S.
  • 2024. 3
    • Signed a long-term agreement with Trina Solar for solar-grade polysilicon
  • 2023.7
    • Started special materials project to make silicon anode material for rechargeable battery
  • 2023.6
    • Signed an MOU with Tokuyama Corporation to establish a joint venture for semiconductor-grade polysilicon
  • 2023.5
    • Inaugurated OCI Holdings
  • 2022
    • Established OCIKumho, a joint venture with Kumho P&B Chemicals
    • Started commercial production of hydrogen peroxide with P&O Chemical
  • 2021
    • Started high-softening-point pitch business
  • 2020
    • Established P&O Chemical, a joint venture with POSCO Future M
Rising<br/>as green energy company
  • 2019
    • Acquired the business of KACO New Energy GmbH, an inverter manufacturer
    • Signed a contract for an urban development project in Incheon’s Yonghyeon-Hagik District
  • 2017
    • Acquired Tokuyama Malaysia Polysilicon Plant
    • Began production of polysilicon for semiconductors
  • 2016
    • Completed Ma Steel OCI Chemical Co., Ltd.
    • Completed Shandong OCI Jianyang Carbon Black
    • Completed the implementation of a power purchase agreement to supply 400 MW solar PV projects in the United States
    • Completed OCI SE cogeneration plant
  • 2015
    • Entered the distributed solar PV projects sector in China
  • 2014
    • Completed Mission Solar Energy, a module production plant in the U.S.
  • 2012
    • Received the Transparent Management Grand Award
    • Won a contract for the Alamo Solar Power Project in the U.S.
  • 2011
    • Acquired Cornerstone Power Development (currently OCI Energy) to start a solar PV business
  • 2010
    • Selected as the first green company certified by the Korean government
    • Completed Shandong OCI (SD OCI), a coal tar distillation plant
A Leap Forward<br/>for Future Business
  • 2009
    • Renamed as OCI
  • 2008
    • Succeeded in commercial production of solar-grade polysilicon
  • 2006
    • Acquired Columbian Chemicals Company (carbon black)
  • 2001
    • Renamed as DC Chemical
    • Oriental Chemical Industries merged with Korea Steel Chemical
Laying a Foundation <br/>for a Global Leap Forward
  • 1995
    • Acquired OCI Wyoming
  • 1994
    • Acquired Samkwang Glass
  • 1992
    • Completed PVA plant
  • 1991
    • Completed TDI plant
Strengthening competitiveness<br/>through qualitative growth
  • 1988
    • Established Dongyang Silicone
  • 1987
    • Completed Gwangyang Plant
  • 1984
    • Established Korea Steel Petrochemicals
  • 1983
    • Established R&D Center in Incheon
  • 1980
    • Established Korea Potassium Chemical Co., Ltd. (currently UNID)
Growing as an Enterprise<br/>for the Nation
  • 1979
    • Completed Iksan hydrogen peroxide plant
  • 1978
    • Completed Ulsan calcium phosphate plant
  • 1976
    • Completed Pohang Plant
  • 1975
    • Established KoFran Chemical
  • 1974
    • Established Korea Steel Chemical
A Pioneer<br/>of Korea’s Chemical Industry
  • 1968
    • Completed Incheon Soda Ash Plant
  • 1959
    • Established Oriental Chemical Industries