Hae Sung Jeong

Hae Sung Jeong


Haesung’s area of practice is M&A, private equity as well as major corporate litigations involving leveraged buy-outs and corporate governance matters.

He worked as a full-time visiting lawyer at GS Energy, a diversified holding company of GS Group, one of the biggest Korean conglomerates, advising on its numerous acquisitions and divestitures. He also worked at New York office of Sullivan & Cromwell LLP as a Visiting Lawyer.

He has represented many international and domestic financial investors, as well as Korean conglomerates in a wide range of M&A transactions and regulatory matters. His recent clients include SK Group, POSCO Group, GS Group, KDB Financial Group, among many others.

Professional Career
  • 2016-2017Visiting Lawyer, Sullivan & Cromwell LLP (New York Office)
  • 2014Visiting Lawyer, GS Energy
  • 2009-PresentShin & Kim LLC
  • 2006-2009Judge Advocate, Republic of Korea Army
  • 2004-2006Judicial Research & Training Institute of the Supreme Court of Korea
Key Experience
  • GS Energy in its acquisition of GS Connect, ChargeEV, Incheon Total Energy
  • Chubb in its acquisition of LINA Life Insurance of Korea
  • GIC in its potential investment in Starbucks Korea
  • Sequoia, DST and Aspex in their investment in Kurly
  • Baring PE in its investment in Shinhan Financial Holding
  • MBK Partners in its acquisition of NexFlex and its proposed acquisition of Prudential Life Insurance Company of Korea
  • Shinhan Financial Holding in its comprehensive share swap with Orange Life Insurance
  • SK E&S in its sale of stake in Paju Energy Service
  • Sequoia and GIC in their investment in Woowa Brothers
  • SolarEdge in its acquisition of Kokam
  • Borealis in its acquisition of DYM Solution
  • SK Holdings in its sale of SKEncar
  • Naver and Line Games in their acquisition of Next Floor and Drama & Company
  • Blackstone PE in its investment in Simone
  • POSCO and Daewoo International in its sale of department business to Lotte
  • Hall Group in its corporate restructuring
  • Kumho Group in its corporate restructuring
  • Standard Chartered PE in its acquisition and sale of Doosan Infracore forklift busienss
  • S1 in its acquisition of real estate management service business from Samsung Everland
  • 2016Stanford Law School (LL.M.)
  • 2004Seoul National University, College of Law (LL.B.)
Bar Admissions
  • 2006Korea
  • Korean Bar Association

Korean, English

Professional Activities
  • Practical Law – Cross-border Private Company Acquisitions – Korea chapter (Co-author, Thomson Reuters, 2017, 2018, 2019)
  • Practical Law – Cross-border Joint-Ventures – Korea chapter (Co-author, Thomson Reuters, 2017, 2018, 2019)
Professional Accolades


  • "Leading Individual" for Corporate/M&A, Chambers Global/Chambers Asia, 2020-2024
  • "Leading Lawyer" for Corporate and M&A, Legal Times, 2020-2023
  • "Leading Lawyer" for M&A, IFLR1000, 2023
  • "Recommended Lawyer" for Corporate and M&A, Legal500, 2020
  • "Leading Lawyer" for Corporate/M&A, Asialaw Profiles, 2018, 2019

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