2014

• February 4Completition of the photovoltaic generation facilities in Gyeongsang National University, Gajwa Campus
• February 26The 30th anniversary of unit #1, 2 completion in Samcheonpo TP
• March 27HQ relocation to the innovative city of Jinju
• August 27Bundang Thermal Power, Received President ‘s gold award for public company onsite improvement in 40th Nation-wide Quality Contest
• October 7Bundang Thermal Power, Received Prime Minister of Ministry of Environment’s Award for Green Management
• December 18Bundang Thermal Power, Achieved S Grade in PSM Evaluation
• December 6Bundang Thermal Power, Achieved 19 times(8,000 straight days) accident-free record

2013

• January 25Entered into the agreement of "Photovoltaic power plant development project" in Gyeongsang National University
• February 25Shareholder agreement of Joint development of electric power project for India
• March 6Completion of the Photovoltaic power system in expressway
• March 28Bundang Thermal Power, Appointed as ‘Green Company’ by Ministry of Environment (third time appointment)
• April 4Entered into the Joint Development Agreement on hydroelectric power plants in Cambodia(Prek Liang)
• April 30Bundang Thermal Power, Completion of 2nd stage fuel cell(3.08MW)
• June 14Won the award from the Board of Audit and Inspection for results of self-inspection activities
• July 18Awarded the grand prize in Digital management innovation in Korea
• August 3Completion of the first Sunny Garden in Sacheon
• September 12Bundang Thermal Power, Achieved 18 times(7,480 straight days) accident-free record
• September 23Inauguration of the 5th CEO, Heo Yeop
• November 7 Bundang Thermal Power, Appointed as best company for workplace innovation in 2013

2009

• January 19Vision Declaration for takeoff to Global Power Leader
• February 19Installation of 4th auditor Kim Seon Jong
• May 20Beginning of Facilities improvement project for Yeosu Thermal Power Plant 2nd unit September 22 Awarded for Korea VE grand prize
• November 25Awarded for silver medal from the President in National Quality Management Award(Yecheon)

2008

• January 23Received the Best Transparency Management Prize.
• June 13Won Presidential award at the public institution Purchase competition exhibition
• October 29Do-Soo Jang appointed President November 20 Quality control circle Dept. received Presidential award at the National Quality Management Contest (Samcheonpo, Yeongdong, Yecheon, Muju) November 26 Received Social Contribution Corporate Award
• December 17Yeongheung Thermal Power received the best prize at Kyung Hyang Electricty & Energy Award

2007

• January 25Completion of 250kW Bundang Hydrogen-fuel cell power generation system
• March 22Yeosu thermal power Plant achieves new safety record(10,000 accident-free days)
• March 31Bundang Thermal Power, Completion of ESCO heat recovery system
• April 3Inauguration of the third President Young-Wook Kwak June 28 The first ignition of Yeongheung Thermal Power Plant Unit 3
• July 3Won the Minister Award in the Good Performance of RPA(Renewable Portfolio Agreement)
• August 20Won the second place in Sustainability Report appraisal among the domestic companies
• November 23Won the Presidential Award in the National Quality Management Award

2006

• February 27UN Global Compact signed
• February 27Established master and doctor's degree on combustion technology with Busan University
• April 3KOSEP Way announced
• October 23Sustainability Report Published
• October 26Coner Stone Ceremony held at lower dam of Yecheon Pumped Storage Power Plant
• October 31Bundang Thermal Power, Completion of 1st stage fuel cell(0.3MW)
• November 21,000kWp solar photovoltaic power generation facility completed at Yeongheung
• November 8Yeongdong Thermal Power Plant received Presidential Prize at 22th Kyunghyang Energy Awards Ceremony
• November 23Work begun oceanic small hydro power generation facility as first in the world at Samcheonpo
• December 22Received Consolidated Certificate of the Quality & Environmental Management System of International Standardization Organization (ISO 9001/14001).

2005

• Our efforts to be recognized an environment-friendly company and a major player in the energy business have been acknowledged by winning the grand prize in the National Environmental Management Award and other prizes such as the Prime Minister’s Award for innovation in the field of the National Productivity. With this new found recognition and praise, KOSEP increased its standing as a global leader in the power industry.
• January 10Employment of 110 new recruits
• April 22Commencement of Yecheon Pumped Storage Power Plant Construction Site Office
• April 22Ground-breaking ceremony for work at Yecheon Pumped Storage Power Plant Construction Site Office
• April 26Certified as 5th grade in National Production Management System
• May 25Acquired A2 (Stable) rating from Moody’s Long-Term Obligation Ratings
• June 10Won the Prime Minister Award in the National Environmental Management Awards
• June 10Awarded Grand Prix in National Environmental Management Awards
• July 6Conclusion of contracts concerning equipment at Yecheon Pumped Storage Power Plant Construction Site Office
• August 1Employment of 63 new recruits September 23 Awarded Grand Prize for Production Innovation in National Productivity Awards.
• September 29Won the Prime Minister Award for innovation at the National Productivity Awards
• October 13Completion of Samcheonpo Thermal Power Plant's de-sulfurization and de-nitrification facilities
• October 13Completion of construction of the de-sulfuration & de-nitrification facilities at the Samcheonpo Thermal Power Plant
• November 29Completion of Samcheonpo Thermal Power Plant's solar energy power plant
• December 20Yeosu Thermal Power Plant won the Mae-Kyung Safety Management Award

2004

• Commence of the second managerial term with the inauguration of the second President, Hee-Gab Park, and by organizing the Nanuum Service Group, a community service program. KOSEP opened the first national high-capacity (800,000 kW) thermal power generation plant with the completion of Yeongheung Thermal Power Plant Unit 1 and Unit 2
• March 26Completion of the repair and renovation of Unit 2 at Yeosu Thermal Power Plant
• April 6Inauguration of the second President Hee-Gab Park
• April 26Employment of 41 new recruits
• May 15Groundbreaking ceremony of Unit 3 and Unit 4 of Yeongheung Thermal Power Plant
• May 28Commencement of the base excavation construction of Unit 3 and Unit 4 sets' main building
• July 19Employment of 57 new recruits
• September 15Organization of Nanuum service group
• October 29Big banquet held for KOSEP's families in Muju and Proclamation of “Global Power Leader” as a company’s vision
• November 12Groundbreaking ceremony at Samcheonpo Small Maritime Hydrogen and Solar Photovoltaic Power Plant
• November 19Awarded Presidential prize in National Quality competition (Yeongdong )
• November 23Samcheonpo Thermal Power Plant won the Prime Minister Award in the Kyung Hyang Electricity Energy Awards
• December 14Chosen as one of the best information-oriented companies by the Ministry of Information and Communication
• December 23Completion of Unit l and Unit 2 of Yeongheung Thermal Power Plant

2003

• We, issued the first Eurobonds, were joined by the first new members of staff, and established Yecheon construction office. KOSEP laid the foundation for becoming a world-class company by garnering various technology and management awards.
• January 21Establishment of Yecheon Pumped Power Construction Site Office
• May 15Completion of Muju Small Hydro Power Plant construction (400kW)
• June 18Issuance of Eurobonds for the amount of US $150 million August 25 Employment of first 55 new recruits
• September 3Won the Presidential Award in the Kyung Hyang Electric Energy Awards
• September 5Won the grand prize for productivity innovation in the National Productivity Awards
• October 30Imported 100 million tons of coals for the Samcheonpo Thermal Power Plant
• November 14Won the silver prize of Presidential Award in the National Quality Competition
• December 12Bundang Combined Cycle Power Plant won the grand prize in the Safety Management Awards

2002

• We intelligently resolved labor union strike and rectified damages caused by Typhoon Rusa at Yeongdong plant, and were ready for our entrance into the energy business through innovative management policies. We also demonstrated our eco-friendly or environmental-friendly management credentials at KOSEP by commencing the de-sulfurization equipment installation for environmental conservation.
• January 6Issuance of corporate bonds of W130,000,000,000
• February 25Korean Power Plant Industry Labor Union strike
• July 5Foundation of Neo-BOD
• July 15KOSEP selected as a preferential candidate for privatization
• August 31Damages caused at Youngdong Plant by Typhoon Rusa and its restoration
• October 1Completion of construction at Yeongheung Bridge
• October 22Commencement of Samcheonpo de-sulfurization equipment installation
• December 23Acquisition of public authentication on safety and health management system (KOSHA 18001) for all power plants

2001

• The year 2001 began with the newly established KOSEP. With the proclamation of its corporate philosophy and vision, KOSEP took its first steps forward.
• April 2Establishment of KOSEP April 6 Inauguration of the first President, Haeng-Soon Yoon
• April 25Meeting of the first board of directors
• May 24Proclamation of corporate philosophy and vision
• May 30Number of visitors to Muju Public Relations Center exceeds one million
• July 10Establishment of corporate regulations
• August 10Launch of corporate news magazine (Hannamjeon) November 15 Completion of Yeongheung Bridge
• December 12Establishment of ethical charter and code of conduct

Before 2001

• April 2, 2001Foundation of KOSEP (Korea South East Power Co., Ltd)
• January 1, 1982Launching KEPCO (Korea Electric Power Corporation)
• July 1, 1961KECO (Korea Electric Company)
  (Consolidated Gyeong-Seong Electric Co, Chosun Electric Co, Namseon Electric Co.)
• May 5, 1946NECO(Namseon Electric company)
• August 1943CECO(Chosun Electric company)
• September 1915SECO(Seoul Electric company)