Lee Jong-hoon, a foundational figure in South Korea’s ascent as a global nuclear power, passed away on April 3, 2026, at the age of 91. For those who track the intersection of industrial policy and national security, Lee was more than a corporate executive. he was a primary architect of the technical sovereignty that allowed South Korea to transition from importing foreign reactor designs to exporting its own.
His career spanned the most critical decades of Korea’s energy evolution. After serving as an instructor at the Naval Academy, Lee entered the power industry in 1961 as part of the first open recruitment class for Chosun Electric, the precursor to the Korea Electric Power Corporation (KEPCO). This entry point placed him at the center of a national effort to electrify a developing economy, a journey that would eventually lead him to the presidency of KEPCO from 1993 to 1998.
From Kori 1 to Global Exports
Lee’s legacy is etched into the physical infrastructure of the Korean grid. He played a pivotal role in the construction of Kori Unit 1, the nation’s first commercial nuclear power plant, and later drove the push for Uljin Units 3 and 4, which were built using independent domestic technology. These projects were not merely engineering feats; they were strategic pivots away from total reliance on foreign expertise.
By the time he reached the top of KEPCO as its 11th president, Lee had already navigated the roles of Nuclear Construction Director and Kori Nuclear Power Plant Head. His trajectory mirrored the country’s own: moving from the tentative first steps of construction to the confident mastery of design and management.
A Legacy of Institutional Building
Beyond the reactors, Lee focused on the intellectual and institutional framework of Korean engineering. He served as the founding chairman of the National Academy of Engineering of Korea (NAEK), ensuring that the technical knowledge gained during the nuclear boom was codified and passed to future generations. His influence extended into various leadership roles, including the Korea Nuclear Industry Association and the Korea Electric Association.

This commitment to academic and technical excellence was mirrored in his personal life. Lee is survived by his wife, Kim Soon-hyun, and four children who have all achieved prominence in academia—spanning professors at Korea University, Myongji University, Seoul City University, and the University of Texas at Austin.
Throughout his career, Lee’s contributions were recognized with the highest state honors, including the Gold Tower Order of Industrial Service Merit in 1994 and the Silver Tower Order in 1983. He was likewise named among the 60 engineers who built Korea in 2006 and the top 100 technical pioneers in 2010.
Understanding Lee Jong-hoon’s Impact
What was the most significant technical milestone of Lee’s career?
While he contributed to Kori Unit 1 and Uljin Units 3 and 4, the initiation of the APR-1400 development during his tenure at KEPCO E&C is arguably his most lasting contribution, as it provided the technical basis for South Korea’s entry into the global nuclear export market.
How did his early career influence his later leadership?
Starting as a first-generation recruit at Chosun Electric and moving through operational roles—such as plant head and construction director—gave him a ground-up understanding of the nuclear fuel cycle and construction process before he took over the strategic leadership of KEPCO.
What does his death signify for the Korean energy sector?
His passing marks the loss of one of the “first-generation” power engineers who bridged the gap between dependence on foreign technology and the creation of a self-sufficient, export-capable nuclear industry.
As the global energy landscape shifts once again toward carbon neutrality, how will the foundations laid by pioneers like Lee Jong-hoon shape the next generation of nuclear innovation?








