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History

  • Grow into a green energy company by working on renewable energy and hydrogen businesses.

    Dangjin Solar Power Plant
    Dangjin Solar Power Plant
    Jeonnam Offshore Wind Farm 1
    Jeonnam Offshore Wind Farm 1
    Incheon Hydrogen Liquefaction Plant
    Incheon Hydrogen Liquefaction Plant
  • 2025

    • 2025.12Began commercial operation at the Dangjin solar power plant
    • 2025.10Renamed “Busan-JungKwan Energy” to “Ensolve”
    • 2025.05Began commercial operation at the Jeonnam offshore wind farm 1
    Dangjin Solar Power Plant
    Dangjin Solar Power Plant
    Jeonnam Offshore Wind Farm 1
    Jeonnam Offshore Wind Farm 1
  • 2024

    • 2024.11
      SK E&S - SK Innovation Merger
    • 2024.09
      Completion of Incheon hydrogen liquefaction plant
    Incheon Hydrogen Liquefaction Plant
    Incheon Hydrogen Liquefaction Plant
  • 2023

    • 2023.11
      Signed MOU with Santos to collaborate on cross-border CCS
    • 2023.09
      Received Presidential Commendation on the Day of Clean Air for blue skies
    • 2023.07
      Began commercial operation at the Yeoju natural gas power plant
    • 2023.06
      Signed MOU with the Seoul Metropolitan Government, Environment Ministry and Hyundai to build a 'Hydrogen Mobility Leading City'
    • 2023.02

      Signed MOU with the Incheon City to facilitate hydrogen bus implementation

      Parking Cloud (currently iPARKING) has launched its electric vehicle charging service

  • 2022

    • 2022.09
      Obtaining the authorization to oversee the exploration and operation of an offshore CO₂ storage facility in Australia
    • 2022.08
      Formalizing a renewable energy Power Purchase Agreement (PPA) with SK Specialty
    • 2022.06
      Completed the acquisition of the No. 4 LNG carrier
    • 2022.05
      Engagement in the largest North American CCS project globally
    • 2022.03
      Start of an international CCS initiative (Bayu-Undan)
  • 2021

    • 2021.12
      Acquired Key Capture Energy (KCE)
    • 2021.10
      Completed the acquisition of the No. 3 LNG carrier
    • 2021.07
      Published our first Sustainable Management Report
    • 2021.01

      Invested in Plug, based in the United States, jointly with SK Inc.

      Achieved nine times the target of zero-accident hours at the Gwangyang natural gas power plant

  • 2019

    • 2019.04
      Completed the acquisition of two LNG carriers(No. 1 & No. 2)
  • 2018

    • 2018.09
      Completely built an ESS (70 MWh) at Doosan Heavy Industries & Construction Co., Ltd.'s Changwon plant
  • Korea’s largest private LNG operator  based on LNG value chain

    LNB 배
  • 2017

    • 2017.06
      Began commercial operations at the 2-1 Complex at Shinan Green Energy
    • 2017.04
      Began commercial operations at the Wirye Combined Heat and Power (CHP) Plant
    • 2017.02
      Began commercial operations at the Paju natural gas power plant
  • 2016

    • 2016.12
      Acquired the ISO 22301 certification for our world-class crisis response management system (Gwangyang natural gas power plant)
  • 2015

    • 2015.10
      Began commercial operations at the Hanam Combined Heat and Power (CHP) Plant
  • 2014

    • 2014.09
      Signed a North American shale gas joint development agreement with Continental Resources, Inc. of the United States
  • 2013

    • 2013.10
      Established the Indonesia branch (currently PT. PRISM Nusantara)
    • 2013.09
      Signed the liquefaction facility utilization contract with Freeport LNG of the United States
    • 2013.08
      Established the U.S. branch (currently PRISM Americas, Inc.)
  • Expanding LNG business fields such as electricity and group energy

    Gwangyang Natural Gas Power Plant
    Gwangyang Natural Gas Power Plant

    2012

    • 2012.06

      Signed an agreement regarding the equity investment in the Barossa gas field offshore in Australia

      Signed a joint venture agreement for Wirye’s group energy business

      Established Wirye Energy Service joint venture (SK E&S: 71%, Korea District Heating Corporation: 29%)

  • 2011

    • 2011.12
      Renamed Daehan City Gas Co., Ltd. to “Ko-one Energy Service Co., Ltd.”
    • 2011.08
      Merged with K-Power Company Ltd (currently Gwangyang natural gas power plant).
  • 2010

    • 2010.01
      Opened the Indonesia office
  • 2009

    • 2009.04
      Opened the U.S. office
  • Establishing a downstream company based on city gas

    Establishing a downstream company based on city gas

    2008

    • 2008.12
      Merged Youngnam Energy Service and Pohang City Gas Co., Ltd.
    • 2008.06
      Approved Wirye group’s energy business
    • 2008.02
      Opened the Beijing office
  • 2006

    • 2006.11

      Merged Iksan City Gas and Iksan Energy

      Began importing LNG directly by the Gwangyang natural gas power plant with Indonesia’s Tangguh gas field.

  • 2005

    • 2005.10
      Changed the corporate name to SK E&S Co., Ltd.
  • 1999

    • 1999.12
      Acquired Jeonnam City Gas, Gangwon City Gas, Iksan City Gas (currently Jeonbuk Energy Service), and Iksan Energy (currently Jeonbuk Energy Service)
    • 1999.01
      Established SK-Enron Co., Ltd., a joint venture between SK Co., Ltd. and Enron Corporation