KOREA WHO
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CEO of CJ CheilJedang
Yoon Seok-hwan
Nongshim Researcher Turned Bio Chief Vows Full Overhaul
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Last Updated on Mar 19, 2026
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CEO of CJ CheilJedang
Life Summary
Yoon Seok-hwan is CEO of CJ CheilJedang.
He is working to improve the company's fundamentals after it posted its first annual net loss.
He was born on January 3, 1969.
He graduated from Seoul National University with a degree in food engineering and received a master's degree in food engineering from Seoul National University Graduate School. He completed an MBA program in international business at the Thunderbird Graduate School of Management in the United States.
He worked as a researcher at Nongshim's Technology Development Research Institute before joining CJ CheilJedang's bio business division.
He served as head of the Piracicaba plant and head of the Brazil business in the bio business division, and as head of global marketing, and worked as head of the overseas integrated PI TF and head of the South America business and CEO of Selecta Corp. in the bio business division.
After serving as head of the BIO Technology Research Institute and head of the Protein Solution business division, he became head of the bio business division. He was appointed CEO in November 2025.
He is considered a "bio expert" within CJ Group.
He is credited with playing a key role in growing the bio business into an operation with annual sales of KRW 4.0 trillion (US$ 2.9 billion).
The Korean original appears to contain a typo or unclear notation in “삐라시까바공장장ᐧ브라질사업담당.” I translated this as “head of the Piracicaba plant and head of the Brazil business,” but “ᐧ” looks like an unusual separator in the source text.
#CJCheilJedang #YoonSeokhwan #CJBio #biobusiness #foodengineering #KoreanCEO #corporateleadership #businessturnaround #ProteinSolution #CJGroup
He is working to improve the company's fundamentals after it posted its first annual net loss.
He was born on January 3, 1969.
He graduated from Seoul National University with a degree in food engineering and received a master's degree in food engineering from Seoul National University Graduate School. He completed an MBA program in international business at the Thunderbird Graduate School of Management in the United States.
He worked as a researcher at Nongshim's Technology Development Research Institute before joining CJ CheilJedang's bio business division.
He served as head of the Piracicaba plant and head of the Brazil business in the bio business division, and as head of global marketing, and worked as head of the overseas integrated PI TF and head of the South America business and CEO of Selecta Corp. in the bio business division.
After serving as head of the BIO Technology Research Institute and head of the Protein Solution business division, he became head of the bio business division. He was appointed CEO in November 2025.
He is considered a "bio expert" within CJ Group.
He is credited with playing a key role in growing the bio business into an operation with annual sales of KRW 4.0 trillion (US$ 2.9 billion).
The Korean original appears to contain a typo or unclear notation in “삐라시까바공장장ᐧ브라질사업담당.” I translated this as “head of the Piracicaba plant and head of the Brazil business,” but “ᐧ” looks like an unusual separator in the source text.
#CJCheilJedang #YoonSeokhwan #CJBio #biobusiness #foodengineering #KoreanCEO #corporateleadership #businessturnaround #ProteinSolution #CJGroup