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1
RECENT
INSIGHT
Press & Releases
[Maeil Business Newspaper] “Entrust Your Complex International Disputes to Us” – Lee & Ko’s Global Disputes Group brings together ten specialized teams under one roof
Deals & Cases
Overruling of Corrective Orders Against Naver and Gmarket for Breaching Personal Information Protection Regulations
3
NEW
HIRES
Young Su KANG
Young Su Kang served as a judge for 29 years in various courts, including his tenure as the Chief Judge of the Incheon District Court until his retirement in 2022. Throughout his esteemed judicial career, he presided over a broad spectrum of cases spanning civil, criminal, administrative, family, IT, and intellectual property law, earning a reputation for his sound judgment and deep legal acumen. Following his retirement from the bench, he has continued to apply his extensive legal expertise in the private sector, advising on and handling matters in civil and criminal litigation, corporate disputes, personal data protection, real estate, finance, and privacy law.
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Jeongsam KIM
Jeongsam Kim brings over 31 years of distinguished experience in public service, having held key leadership roles at the Ministry of Science and ICT and the Korea Communications Commission. He has deep expertise in policy-making and regulatory affairs across a wide range of sectors, including telecommunications and spectrum, media, IT/software, cyber security, and next-generation (5G/6G) mobile communications. He advises clients on legal and regulatory issues in areas such as telecommunications and media, artificial intelligence, and cyber security.
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Yunseek HAHM
Yunseek Hahm is a leading partner in Lee & Ko’s Litigation Group, with recognized expertise in civil, criminal, and administrative litigation, including complex labor and employment disputes. He brings to his practice a wealth of experience gained through a distinguished 15-year judicial career and subsequent roles in both private practice and corporate leadership.
Mr. Hahm served as a judge in various courts across Korea, where he presided over a wide range of cases involving civil, criminal, family, and labor matters. After retiring from the judiciary in 2016, he spent several years at major law firms, representing large corporations in high-stakes litigation. From 2020 to 2025, Mr. Hahm served as Vice President of Korea’s leading platform company, where he oversaw legal and compliance functions and gained broad, practical experience across business operations, including leasing, public affairs, and ESG strategy.
Combining his deep understanding of judicial reasoning with hands-on business insight, Mr. Hahm delivers strategic, practical litigation solutions tailored to the needs of corporate clients.
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Mr. Hahm served as a judge in various courts across Korea, where he presided over a wide range of cases involving civil, criminal, family, and labor matters. After retiring from the judiciary in 2016, he spent several years at major law firms, representing large corporations in high-stakes litigation. From 2020 to 2025, Mr. Hahm served as Vice President of Korea’s leading platform company, where he oversaw legal and compliance functions and gained broad, practical experience across business operations, including leasing, public affairs, and ESG strategy.
Combining his deep understanding of judicial reasoning with hands-on business insight, Mr. Hahm delivers strategic, practical litigation solutions tailored to the needs of corporate clients.
Zac SHARPE
Zac Sharpe has extensive experience in complex international disputes, including international arbitration and enforcement proceedings in multiple jurisdictions. He has lived and worked in Asia for nearly two decades and his practice covers energy, engineering and construction, investor-state, health care/life sciences, technology, joint venture and M&A disputes.
Zac has acted as counsel in multibillion dollar disputes and in arbitration proceedings at major arbitration centers across Asia, Europe, the Middle East, and North America. He has extensive experience with high stakes and complex disputes involving multiple jurisdictions.
He has represented clients in arbitration proceedings under the rules of the International Chamber of Commerce, the London Court of International Arbitration, the Singapore International Arbitration Centre, the International Center for Dispute Resolution, the Permanent Court of Arbitration, the Korean Commercial Arbitration Board, the Hong Kong International Arbitration Center and the London Maritime Arbitrators Association.
Zac is a solicitor advocate with higher rights of audience in the Senior (Civil) Courts of England & Wales. Zac is also admitted as an attorney in New York and admitted as a foreign lawyer in the Singapore International Commercial Court.
“…one of the most impressive practitioners in the Singapore arbitration space; he is recognized for “considerable experience in construction having worked in-house.”
“Zachary is a highly experienced practitioner, particularly in Korean matters”. “He has the ability to digest the details and to present them all when needed”.
“Zachary is an excellent lawyer and I thoroughly recommend him”; “He is a really good guy who builds very strong client relationships”.
- Who's Who Legal: Arbitration — Future Leaders (2018, 2020-2024) -
“A standout partner who exemplifies leadership and deep legal acumen is Zachary Sharpe. His strategic insights and mastery in navigating complex cross-border disputes have consistently resulted in favorable outcomes for clients. His reputation for integrity and dedication makes him a trusted adviser and a formidable advocate in the arbitration community”.
- The Legal 500 Asia Pacific — "Next Generation Partner" (2021-2023) -
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Zac has acted as counsel in multibillion dollar disputes and in arbitration proceedings at major arbitration centers across Asia, Europe, the Middle East, and North America. He has extensive experience with high stakes and complex disputes involving multiple jurisdictions.
He has represented clients in arbitration proceedings under the rules of the International Chamber of Commerce, the London Court of International Arbitration, the Singapore International Arbitration Centre, the International Center for Dispute Resolution, the Permanent Court of Arbitration, the Korean Commercial Arbitration Board, the Hong Kong International Arbitration Center and the London Maritime Arbitrators Association.
Zac is a solicitor advocate with higher rights of audience in the Senior (Civil) Courts of England & Wales. Zac is also admitted as an attorney in New York and admitted as a foreign lawyer in the Singapore International Commercial Court.
“…one of the most impressive practitioners in the Singapore arbitration space; he is recognized for “considerable experience in construction having worked in-house.”
“Zachary is a highly experienced practitioner, particularly in Korean matters”. “He has the ability to digest the details and to present them all when needed”.
“Zachary is an excellent lawyer and I thoroughly recommend him”; “He is a really good guy who builds very strong client relationships”.
- Who's Who Legal: Arbitration — Future Leaders (2018, 2020-2024) -
“A standout partner who exemplifies leadership and deep legal acumen is Zachary Sharpe. His strategic insights and mastery in navigating complex cross-border disputes have consistently resulted in favorable outcomes for clients. His reputation for integrity and dedication makes him a trusted adviser and a formidable advocate in the arbitration community”.
- The Legal 500 Asia Pacific — "Next Generation Partner" (2021-2023) -
Geun Hyuk YOO
Geun Hyuk Yoo, Senior Advisor at Lee & Ko, is a nationally recognized expert in health policy and public administration, with over 30 years of distinguished service in the Korean government, including high-level roles at the Ministry of Health and Welfare and the Office of the President. Most notably, he served as the Second Vice Minister of Health and Welfare, where he spearheaded major reforms in the healthcare system and led strategic initiatives to advance the healthcare industry.
At Lee & Ko, Mr. Yoo leverages his deep institutional knowledge and regulatory expertise to advise clients across a wide spectrum of matters related to healthcare policy, hospital and medical service delivery systems, pharmaceuticals, cosmetics, tobacco control policy, and food safety. He also plays a pivotal role in guiding clients through rapidly evolving sectors such as new drug development, cutting-edge medical technologies, and innovative medical devices. His advisory work focuses in particular on regulatory approvals, pricing strategies, and reimbursement under the national health insurance system, which are essential for achieving market access and successful commercialization in Korea’s healthcare sector.
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At Lee & Ko, Mr. Yoo leverages his deep institutional knowledge and regulatory expertise to advise clients across a wide spectrum of matters related to healthcare policy, hospital and medical service delivery systems, pharmaceuticals, cosmetics, tobacco control policy, and food safety. He also plays a pivotal role in guiding clients through rapidly evolving sectors such as new drug development, cutting-edge medical technologies, and innovative medical devices. His advisory work focuses in particular on regulatory approvals, pricing strategies, and reimbursement under the national health insurance system, which are essential for achieving market access and successful commercialization in Korea’s healthcare sector.
Dongmin SEO
Dongmin Seo joined Lee & Ko in 2025 and he provides litigation and advisory services based on extensive practical experience gained through 14 years of distinguished service as a judge and prosecutor, specializing in corporate-related administrative litigation, criminal litigation, and construction & real estate disputes.
During his tenure as a prosecutor, Mr. Seo’s meticulous approach to investigations and trial work led to multiple distinctions, including recognition by the Supreme Prosecutors’ Office on 10 occasions for outstanding performance, as well as commendations from the Minister of Justice and the Prosecutor General. While serving as a judge at the Seoul Administrative Court, Mr. Seo handled high-stakes matters ranging from administrative sanctions against corporations, defense contractors, and pharmaceutical companies to major development projects, redevelopment and reconstruction endeavors, and administrative dispositions involving medical institutions and senior public officials. This breadth of experience underscores Mr. Seo’s proven ability to offer clients insightful counsel and effective representation in even the most complex legal challenges.
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During his tenure as a prosecutor, Mr. Seo’s meticulous approach to investigations and trial work led to multiple distinctions, including recognition by the Supreme Prosecutors’ Office on 10 occasions for outstanding performance, as well as commendations from the Minister of Justice and the Prosecutor General. While serving as a judge at the Seoul Administrative Court, Mr. Seo handled high-stakes matters ranging from administrative sanctions against corporations, defense contractors, and pharmaceutical companies to major development projects, redevelopment and reconstruction endeavors, and administrative dispositions involving medical institutions and senior public officials. This breadth of experience underscores Mr. Seo’s proven ability to offer clients insightful counsel and effective representation in even the most complex legal challenges.
Sunho PARK
Sunho Park is a Senior Advisor at Lee & Ko, bringing over 35 years of distinguished experience in leadership roles within the Ministry of Land, Infrastructure and Transport (MOLIT) and the International Contractors Association of Korea (ICAK). Renowned for his pivotal tenure as the 1st Vice Minister of MOLIT, Mr. Park has shaped national policies in real estate, construction, industrial complexes, urban planning, transportation infrastructure, and outbound construction investment. His career spans significant international engagements with the OECD and the U.S. Department of Housing and Urban Development (HUD), alongside his leadership as Chairman of ICAK. At Lee & Ko, he provides expert counsel to corporations on regulatory reform, infrastructure investment, and related fields.
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Moo Jin CHOI
Moo Jin Choi served for 26 years at the Korea Fair Trade Commission (KFTC), holding key leadership roles including Director General of the Corporate Transaction Policy Bureau, Cartel Investigation Bureau, Competition Policy Bureau, and Distribution Policy Officer. In these positions, he oversaw the enforcement and development of policies under a broad range of laws, including the Monopoly Regulation and Fair Trade Act, the Subcontracting Act, the Large-Scale Distribution Business Act, the Franchise Business Transaction Act, the Agency Act, and the Labeling and Advertising Act.
Drawing on this extensive expertise and deep knowledge gained in public service, Mr. Choi delivers sophisticated legal services, offering strategic counsel on fair trade compliance, corporate transactions, mergers and acquisitions, and a broad range of regulatory matters. His seasoned insight ensures clients receive precise, high-caliber solutions tailored to complex legal and business challenges.
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Drawing on this extensive expertise and deep knowledge gained in public service, Mr. Choi delivers sophisticated legal services, offering strategic counsel on fair trade compliance, corporate transactions, mergers and acquisitions, and a broad range of regulatory matters. His seasoned insight ensures clients receive precise, high-caliber solutions tailored to complex legal and business challenges.
Kyung Duk AN
Kyung Duk An is a highly respected authority in labor policy, human resources, and workplace safety, with over 30 years of distinguished service at the Ministry of Employment and Labor of the Republic of Korea. Over the course of his career, he held numerous senior leadership roles, including Director General of the Occupational Safety and Health Office, Director General of the Regional Employment and Labor Office, Deputy Minister of the Planning and Management Office, Director General of the Labor Policy Office, and Standing Committee Member of the Economic, Social & Labor Council, where he played a central role in shaping and implementing national labor and employment strategies. He culminated his public service as the 8th Minister of Employment and Labor.
Drawing on extensive experience in both policy development and field operations, Mr. An offers tailored, results-driven advisory services across the areas of human resources, labor relations, and industrial safety. He helps companies effectively manage personnel issues, ensure compliance with labor laws and regulations, and design workplace safety systems that support business continuity and legal integrity. His strategic guidance enables clients to mitigate regulatory risks, prevent labor disputes, and build resilient, forward-looking HR and safety frameworks.
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Drawing on extensive experience in both policy development and field operations, Mr. An offers tailored, results-driven advisory services across the areas of human resources, labor relations, and industrial safety. He helps companies effectively manage personnel issues, ensure compliance with labor laws and regulations, and design workplace safety systems that support business continuity and legal integrity. His strategic guidance enables clients to mitigate regulatory risks, prevent labor disputes, and build resilient, forward-looking HR and safety frameworks.
Ho Jin CHOI
Ho Jin Choi has extensive practical experience in adjudication, having served as a judge at various levels of courts for 15 years since 2010. He handled a wide range of cases, including civil, criminal, and non-contentious matters. Notably, during his tenure as a Research Judge at the Supreme Court of Korea, he reviewed over 1,500 cases spanning various legal areas.
At the Seoul Southern District Court, he presided over numerous injunction cases involving internal corporate disputes such as shareholder meeting resolutions, internal organizational disputes like suspensions of duties, and other urgent matters including stays of delisting decisions and broadcast prohibitions. He also handled criminal cases related to the Capital Markets Act. While serving at the Seoul Central District Court, he was part of the Intellectual Property Division, overseeing cases related to intellectual property rights and the Unfair Competition Prevention Act.
In addition to his judicial roles, he served as a Public Information Officer at the Seoul Southern District Court, gaining valuable experience in judicial administration.
Mr. Choi has published multiple papers on topics related to his judicial work, and has consistently participated in academic conferences and seminars, demonstrating a commitment to developing deep and comprehensive legal knowledge.
In 2025, he joined Lee & Ko, where he advises and represents clients in a broad range of cases, including corporate and organizational disputes, intellectual property and unfair competition, capital markets-related matters, construction and real estate disputes, as well as civil and criminal litigation and injunction proceedings.
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At the Seoul Southern District Court, he presided over numerous injunction cases involving internal corporate disputes such as shareholder meeting resolutions, internal organizational disputes like suspensions of duties, and other urgent matters including stays of delisting decisions and broadcast prohibitions. He also handled criminal cases related to the Capital Markets Act. While serving at the Seoul Central District Court, he was part of the Intellectual Property Division, overseeing cases related to intellectual property rights and the Unfair Competition Prevention Act.
In addition to his judicial roles, he served as a Public Information Officer at the Seoul Southern District Court, gaining valuable experience in judicial administration.
Mr. Choi has published multiple papers on topics related to his judicial work, and has consistently participated in academic conferences and seminars, demonstrating a commitment to developing deep and comprehensive legal knowledge.
In 2025, he joined Lee & Ko, where he advises and represents clients in a broad range of cases, including corporate and organizational disputes, intellectual property and unfair competition, capital markets-related matters, construction and real estate disputes, as well as civil and criminal litigation and injunction proceedings.
Recent Accolades
