메뉴 열기
메뉴 닫기
메뉴 닫기
Recently reviewed Professionals
Yong Joon Yoon is a partner in the Corporate Group. He is an expert in the areas of Mergers and Acquisitions, Corporate Governance, Foreign Investment, Cross-border & Overseas Investment, Corporate & M&A Litigation. He has represented a large number of domestic and foreign companies in various M&A transactions and disputes and has earned a reputation as a brilliant negotiator and strategist in deal structuring.

Recently, Mr. Yoon has successfully led various major M&A transactions including sale of Hanyang Securities, E1/Calista Capital/Meritz Securities Consortium’s acquisition of Pyeongtaek Energy Service/Gimcheon Energy Service/Jeonbuk Collective Energy, Taelim Paper’s acquisition of Jeonju Paper and Jeonju Onepower, Woori Financial Group’s acquisition of Daol Investment, Global Sae-A’s acquisition of Ssangyong Engineering & Construction from the Investment Corporation of Dubai, Jungheung Group’s acquisition of shares in Daewoo Engineering & Construction, Mirae Asset Financial Group’s sale of Mirae Asset Fund Service Co., Ltd., IMM Private Equity's sale of W Concept Korea, Hana Financial Investment and Hahn & Company's acquisition of H-Line Shipping, IMM Private Equity's acquisition of Linde Korea, Sae-A Trading's acquisition of Tailim Packaging, Posco Energy's sale of Pospower, joint venture between Samsung Active Asset Management and Franklin Templeton Investment Trust Management, KB Securities' sale of Hyundai Asset Management, Hyundai Marine's sale of Hyundai Securities to KB, KDB's sale of Daewoo Securities to Mirae Asset, acquisition of Samsung Techwin and Samsung General Chemicals (a mega-transaction between Samsung and Hanwha group), Woori Financial Holdings' acquisition of Kumho Investment Bank, Macquarie Group's acquisition of ING Asset Management, privatization of Woori Financial Holdings (especially sale of 6 subsidiaries including Woori Investment & Securities), sale of Himart, and the investment to Emerson Pacific by China Minsheng Jiaye Investment.
Education
2008 University of San Diego School of Law - LL.M
2002 Judicial Research & Training Institute, Supreme Court of Korea
1998 Seoul National University - LL.B
LOAD MORE
Work Experience
2002-Present Lee & Ko
2024-Present Advisory Member, Financial Supervision Advisory Committee, Financial Supervisory Service
LOAD MORE
Admissions & Qualifications
2002 Admitted to the Korean Bar
2008 Admitted to the New York State Bar
LOAD MORE
Languages
Korean and English
Awards & Recognitions
2026 Selected as “Ranked Lawyer/Band 4" (Corporate/M&A) by Chambers Global
2026 Selected as “Ranked Lawyer/Leading Individuals” (Corporate/M&A) by Chambers Asia-Pacific
2025 Selected as “Leading Lawyer/Highly Regarded” (M&A) by IFLR1000
2025 Selected as “Ranked Lawyer/Leading Individuals” (Corporate/M&A) by Chambers Global
2025 Selected as “Ranked Lawyer/Leading Individuals” (Corporate/M&A) by Chambers Asia-Pacific
2024 Selected as “Ranked Lawyer/Leading Individuals” (Corporate/M&A) by Chambers Global
2024 Selected as “Ranked Lawyer/Leading Individuals” (Corporate/M&A) by Chambers Asia-Pacific
LOAD MORE
Publications / Presentations / ETC
'Private Mergers and Acquisitions in South Korea', (Thomson and Reuters, 2024)
Lecturer for Corporate Law Course (M&A Transactions) at Korea Judicial Training Institute (2009 - 2012)
Lecturer at Lee & Ko M&A Forum, In-House Congress Seoul and IHCF Seminar
Lecturer for M&A courses at numerous educational institutes and workshops at major corporations in Korea
Lecturer for PEF - Advanced Strategy Course at Korea Fixed Income Research Institute, M&A Dealers Training Course at Korea M&A Association; and M&A Instructor Course at Korea Management Association
'Impact of COVID-19 on M&A transactions and related legal issues', (BFL, vol. 103, September 2020)
'The Process and Issues of Hanjinkal Management Disputes', (BFL vol.97, September 2019)
'Studies on Practical Issues relating to Creditor Protection in Spin Off', (BFL, vol. 49, September 2011)
'Textbook for Korea Judicial Training Institute', (Lectures on Corporate Law - M&A Practice, 2011)
'Studies on Practical Issues relating to Injunction against Issuance of New Shares', (BFL, vol. 23, May 2007)
'The International Comparative Legal Guide to International Arbitration ', (Global Legal Group, 2006)
LOAD MORE
Related news

Press & Releases

[Money Today] Lee & Ko Launches Management Control Disputes Team, with Attorneys Dajoo Jung and Sejoong Lee as Co-Directors 2026.04.15

Awards Ranking

Chambers Global 2026 - Band 1 in 6 practice areas 2026.02.13

Press & Releases

[The Dong-A Ilbo] Lee & Ko Expands its ‘Management Dispute Team’ with M&A Experts and Former Judges 2025.12.29

Press & Releases

[The Bell] Revised Commercial Act TF “No Standardized Approach for Responding to the Changes” 2025.09.12

Awards Ranking

Lee & Ko Recognized as Tier 1 in All Practice Areas in IFLR1000 2025 2025.09.11

Press & Releases

[The Korea Economic Daily] Lee & Ko’s Management Dispute Team Makes Its Mark in Major Cases Including SM Entertainment and Hanmi Pharm 2025.04.22

Press & Releases

[JoongAng Ilbo] [Law Firm] Diversifying Corporate Control Disputes... Delivering Optimal Solutions with One-Stop Services 2025.04.17

Awards Ranking

'Chambers Asia-Pacific 2025’ Band 1 in 11 practice areas 2024.12.13

Awards Ranking

Band 1 in 7 Practice Areas by "Chambers Global 2024" 2024.02.19

Awards Ranking

'Chambers Asia-Pacific 2024’ Band 1 in 13 practice areas 2023.12.15

Press & Releases

[Chosun Biz] [Law Firm Strategy] (104) "Eastar Jet, Ordered to Pay Compensation of KRW 23 billion to Jeju Air"... Lee & Ko Successfully Advised in M&A Litigation, Winning “Uncommon Double Compensation Judgment” 2023.03.08

Deals & Cases

Woori Financial Group’s acquisition of Daol Investment 2023.02.27

Deals & Cases

Comprehensive Stock Exchange between LG Chem and Korea Zinc Company 2022.11.24
LOAD MORE