2023
-
11
Signed MOU with Santos to collaborate on cross-border CCS
-
09
Received Presidential Commendation on the Day of Clean Air for blue skies
-
07
Began commercial operation at the Yeoju LNG power plant
-
06
signed MOU with the Seoul Metropolitan Government, Environment Ministry and Hyundai to build a ‘Hydrogen Mobility Leading City’

-
02
signed MOU with the Incheon City to facilitate hydrogen bus implementation
-
02
Parking Cloud to start electric car charging services
2022
-
09
Obtaining the authorization to oversee the exploration and operation of an offshore CO₂ storage facility in Australia
-
08
Formalizing a renewable energy Power Purchase Agreement (PPA) with SK Specialty
-
05
Securing a contractual agreement for the supply of electrolyzers to Jeju

-
05
Engagement in the largest North American CCS project globally
-
03
Start of an international CCS initiative (Bayu Undan)
Grow into a green energy company by working on hydrogen and renewable energy.
2021
-
09
Obtaining KEC management rights
-
07
Published our first Sustainable Management Report
-
01
Invested in Plug Power, based in the United States, jointly with SK Inc.

-
01
Achieved nine times the target of zero-accident hours at the Gwangyang LNG Power Plant
2020
-
09
Was selected to construct 200 MW of a floating photovoltaic (PV) system at Saemangeum
-
08
Invested in the Zhoushan LNG terminal of ENN Group in China
-
07
Formed a partnership with Sunrun, the US energy solutions provider

2018
-
11
Completely constructed a 50 MWh energy storage system (ESS) at SK Innovation Ulsan Complex
-
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 V/C
2017
-
06
Began commercial operations at the 2-1 Complex at Shinan Green Energy
-
04
Began commercial operations at the Wirye Combined Heat and Power (CHP) Plant
-
02
Began commercial operations at the Paju LNG Power Plant
-
01
Began commercial operations at the Boryeong LNG Terminal

2013
-
10
Established the Indonesian branch, PT. SK E&S Nusantara
-
09
Signed the liquefaction facility utilization contract with Freeport LNG of the United States
-
08
Established SK E&S Americas, Inc., a US branch
-
01
Started construction of the Boryeong LNG Terminal
Expanding LNG business fields such as electricity and group energy
2012
-
12
Established Boryeong LNG Terminal Co., Ltd.
-
06
Signed an agreement regarding the equity investment in the Barossa-Caldita gas field offshore in Australia
-
06
Signed a joint venture agreement for Wirye’s group energy business
-
06
Established Wirye Energy Service joint venture (SK E&S: 71%, Korea District Heating Corporation: 29%)
2011
-
12
Renamed Daehan City Gas Co., Ltd. to “Ko-one Energy Service Co., Ltd.”
-
08
Merged with K-Power Company Ltd.

Establishing a downstream company based on city gas
1999
-
12
Acquired Jeonnam City Gas, Gangwon City Gas, Iksan City Gas (currently Jeonbuk Energy Service), and Iksan Energy (currently Jeonbuk Energy Service)
-
01
Established SK-Enron Co., Ltd., a joint venture between SK Co., Ltd. and Enron Corporation
