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1
RECENT
INSIGHT
3
NEW
HIRES
Sang Hyun LEE
Sang Hyun Lee is a Partner specializing in criminal defense at Lee & Ko since 2024. Prior to this role, he dedicated nearly 20 years to the Prosecution Service, with his last career highlight as the Chief Prosecutor of the Gyeongju Branch of the Daegu District Prosecutors’ Office.
During his tenure at the Prosecution Service, Mr. Lee held various positions across different regional offices, starting as a Deputy Senior Prosecutor of the Public Security Department at the Seoul Central District Prosecutors’ Office and advancing to a Senior Prosecutor of the Public Security Department at the Ulsan and Daejeon District Prosecutors’ Offices, as well as the Public Security Division II at the Seoul Central District Prosecutors’ Office. As a Certified Class 2 “Blue Belt” Prosecutor in Labor accredited by the Supreme Prosecutors’ Office since 2021, he has been hailed as one of few professionals with excellence specializing in serious accident, labor, election, and political finance matters.
In addition, Mr. Lee has extensive experience and expertise in the fields of anti-corruption, public corruption, and violent crime investigations, including corporate-related fraud, embezzlement, breach of trust, violent crimes involving drugs, and public corruption matters, accumulated through his decade-long career working as a Prosecutor of the Special Crime Investigation Department at the Ulsan District Prosecutors’ Office, the Violent Crime Investigation Department at the Seoul Central District Prosecutors’ Office, and as a Senior Prosecutor of the Criminal DivisionⅤ at the Daejeon District Prosecutors’ Office dedicated to special and violent crimes and public security investigations, as well as the Criminal Division III at the Seoul Western District Prosecutors’ Office dedicated to violent crime investigations.
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During his tenure at the Prosecution Service, Mr. Lee held various positions across different regional offices, starting as a Deputy Senior Prosecutor of the Public Security Department at the Seoul Central District Prosecutors’ Office and advancing to a Senior Prosecutor of the Public Security Department at the Ulsan and Daejeon District Prosecutors’ Offices, as well as the Public Security Division II at the Seoul Central District Prosecutors’ Office. As a Certified Class 2 “Blue Belt” Prosecutor in Labor accredited by the Supreme Prosecutors’ Office since 2021, he has been hailed as one of few professionals with excellence specializing in serious accident, labor, election, and political finance matters.
In addition, Mr. Lee has extensive experience and expertise in the fields of anti-corruption, public corruption, and violent crime investigations, including corporate-related fraud, embezzlement, breach of trust, violent crimes involving drugs, and public corruption matters, accumulated through his decade-long career working as a Prosecutor of the Special Crime Investigation Department at the Ulsan District Prosecutors’ Office, the Violent Crime Investigation Department at the Seoul Central District Prosecutors’ Office, and as a Senior Prosecutor of the Criminal DivisionⅤ at the Daejeon District Prosecutors’ Office dedicated to special and violent crimes and public security investigations, as well as the Criminal Division III at the Seoul Western District Prosecutors’ Office dedicated to violent crime investigations.
Tae Woo KIM
Taewoo Kim is a certified tax accountant in the Tax Group. Prior to joining Lee & Ko, Mr. Kim served for 16 years in the National Tax Service (NTS) and Seoul Regional Tax Office, where he was responsible for a wide range of tax investigation in the Audit and Inspection Bureau – Division 1. Mr. Kim also has extensive experience in tax audit defence, tax consulting, and tax appeal.
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Yang Ho PARK
Yang Ho Park, a partner at Lee & Ko, brings nearly 18 years of dedication and experience from the Prosecution Service to his specialized practice in criminal defense.
During his tenure at the Prosecution Service, Mr. Park served as a prosecutor in multiple regional offices such as the Criminal Division I at the Seoul Central District Prosecutors’ Office, the Special Crime Investigation Department at the Ulsan District Prosecutors’ Office as well as key roles at the Office of the Inspection General, Prosecution Service Division, and Legal Affairs Division at the Ministry of Justice. In addition, he held specialized prosecutorial positions handling special crimes at Uijeongbu and Jeonju District Prosecutors’ Offices and crimes committed by foreign residents in Korea at Incheon District Prosecutors’ Office. Leveraging his extensive prosecutorial background, Mr. Park now adeptly represents and advises clients in cases involving matters related to anti-corruption, violations of the Monopoly Regulation and Fair Trade Act, serious accidents, financial crimes, and customs disputes. He also provides support on issues relating to amendment and interpretation of corporate-related laws and regulations, and offers strategic advice on matters pertinent to legal-tech industries.
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During his tenure at the Prosecution Service, Mr. Park served as a prosecutor in multiple regional offices such as the Criminal Division I at the Seoul Central District Prosecutors’ Office, the Special Crime Investigation Department at the Ulsan District Prosecutors’ Office as well as key roles at the Office of the Inspection General, Prosecution Service Division, and Legal Affairs Division at the Ministry of Justice. In addition, he held specialized prosecutorial positions handling special crimes at Uijeongbu and Jeonju District Prosecutors’ Offices and crimes committed by foreign residents in Korea at Incheon District Prosecutors’ Office. Leveraging his extensive prosecutorial background, Mr. Park now adeptly represents and advises clients in cases involving matters related to anti-corruption, violations of the Monopoly Regulation and Fair Trade Act, serious accidents, financial crimes, and customs disputes. He also provides support on issues relating to amendment and interpretation of corporate-related laws and regulations, and offers strategic advice on matters pertinent to legal-tech industries.
Kwangik SON
Kwangik Son is a partner in the Defense Industry Group. He is an expert in the areas of defense industry, government contracts, and aerospace.
Mr. Son was commissioned as a Judge Advocate in 2002 and worked at the Ministry of National Defense, the Army Headquarters, the Special Warfare Command, and the Defense Acquisition Program Administration (DAPA) for most of his legal career. As a Judge Advocate officer, he was in charge of military disciplinary (or non-judicial punishment) procedure and military judicial proceedings. He handled other legal matters such as serving as legal counsel to defense acquisition programs and defense installation projects, domestic and overseas lawsuits, and international arbitration.
After serving in the Army for 20 years, Mr. Son was honorably discharged as a Colonel of the Army in 2022.
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Mr. Son was commissioned as a Judge Advocate in 2002 and worked at the Ministry of National Defense, the Army Headquarters, the Special Warfare Command, and the Defense Acquisition Program Administration (DAPA) for most of his legal career. As a Judge Advocate officer, he was in charge of military disciplinary (or non-judicial punishment) procedure and military judicial proceedings. He handled other legal matters such as serving as legal counsel to defense acquisition programs and defense installation projects, domestic and overseas lawsuits, and international arbitration.
After serving in the Army for 20 years, Mr. Son was honorably discharged as a Colonel of the Army in 2022.
Allen Hyungi RYU
Allen Ryu is a senior foreign attorney in the Corporate and M&A Practice Groups, with expertise in mergers and acquisitions, foreign direct investment, corporate governance and private equity issues. Allen advises a wide range of clients, including private companies and private equity and venture capital firms, in connection with all forms of transactions including buyouts, joint ventures, carve-outs, minority investments, pre-IPO financings, restructurings and spin-offs, as well as general corporate counseling. He also advises clients regularly on CFIUS and other foreign investment reviews. Allen focuses on technology companies across various sectors, including automotive and mobility, TMT, energy, fintech, software, aviation, online game and entertainment industries. Allen’s representative transactions include some of the most complex and largest transactions involving Korean buyers or sellers. Prior to joining Lee & Ko, Allen was a senior foreign counsel at a leading Korean law firm.
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Hankil D. KANG
Hankil D. Kang is a member of Lee & Ko's Intellectual Property Group. Mr. Kang's main practice areas include IP-related international disputes and IP-related transactions. Prior to joining Lee & Ko, he was with another leading Korean law firm where he advised multinational clients involved in litigations in the U.S., including multiple 337 ITC investigations and district court cases involving patents, copyrights, trade secrets, and other IP related issues, to manage local counsel, develop litigation strategies, and assist with discovery process. Mr. Kang also advised clients on various IP related transactional matters, including negotiating and drafting IP licensing agreements, joint research and development agreements, dispute settlement agreements, and service contracts involving Korean celebrities, among others. Prior to that, Mr. Kang advised clients on IP litigation and licensing matters at major U.S. law firms and a global electronics company.
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Jonghyuk WON
Jonghyuk Won is a Patent Attorney who brings 25 years of experience and expertise in chemistry, biotechnology, and healthcare with the Korean Intellectual Property Office (KIPO), the Intellectual Property Trial and Appeal Board (IPTAB), and the Patent Court in connection with intellectual property rights, focusing on inventions in chemistry, biotechnology, and healthcare to his role at LEE & KO IP.
During his tenure at the KIPO as an examiner, judge, chief judge, patent court technical examiner, and heads of various examination divisions (medical technology, environmental technology, residential life, and biohealthcare), Jonghyuk was selected by his KIPO colleagues as the manager they would most like to work with. He has contributed to the establishment of various policies and institutional improvements in the chemical and bio-intellectual property fields, including the improvement of the patent microorganism deposit system, amendments for the presentation of nucleotide and amino acid sequence listings, and the establishment of a practical guide for examination in the biotechnology field.
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During his tenure at the KIPO as an examiner, judge, chief judge, patent court technical examiner, and heads of various examination divisions (medical technology, environmental technology, residential life, and biohealthcare), Jonghyuk was selected by his KIPO colleagues as the manager they would most like to work with. He has contributed to the establishment of various policies and institutional improvements in the chemical and bio-intellectual property fields, including the improvement of the patent microorganism deposit system, amendments for the presentation of nucleotide and amino acid sequence listings, and the establishment of a practical guide for examination in the biotechnology field.
Youn Seob LEE
Mr. Youn Seob Lee is an expert on environmental issues with 27 years of experience at the Ministry of Environment, where he developed a deep understanding and expertise in analyzing and addressing various environmental issues. He has also acquired global expertise in environmental issues through his work at the United Nations Environment Programme (UNEP) and the Embassy of the Republic of Korea in China. Additionally, he has extensive experience in dealing with environmental issues from a corporate perspective, having served as an environmental advisor for major domestic companies.
At Lee & Ko Environment and ESG teams, Mr. Lee offers high-level integrated solutions in areas such as obtaining environmental permits and licenses, developing ESG management strategies, managing product safety, responding to environmental accidents, and regulatory reforms.
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At Lee & Ko Environment and ESG teams, Mr. Lee offers high-level integrated solutions in areas such as obtaining environmental permits and licenses, developing ESG management strategies, managing product safety, responding to environmental accidents, and regulatory reforms.
Seong Cheol JIN
Seong Cheol Jin has served in key roles at the Personal Information Protection Commission, the Korea Communications Commission, the Korea Telecommunications Operators Association, and the Office for Government Policy Coordination. In these positions, he has developed extensive expertise and experience in personal information, telecommunications, IT, and media.
During his 28 years of public service, Mr. Jin has built expertise in regulatory affairs, focusing on improving systems that benefit people's daily lives and fostering a fair competition environment. He joined Lee & Ko in 2024 as a Senior Advisor, where he provides expert advice on personal information, broadcasting, media, IT, and communications.
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During his 28 years of public service, Mr. Jin has built expertise in regulatory affairs, focusing on improving systems that benefit people's daily lives and fostering a fair competition environment. He joined Lee & Ko in 2024 as a Senior Advisor, where he provides expert advice on personal information, broadcasting, media, IT, and communications.
Young Jung KIM
Young Jung Kim is a specialist in financial regulations. He advises on various legal and financial regulatory issues that banks (including internet banks), bank holding companies, foreign bank branches, non-bank financial companies (saving banks, credit-specialized financial companies, mutual financial associations), and their major shareholders face in Korea and other jurisdictions that have adopted the Basel III Accord.
Yong Jung Kim began his career in 2005 and has handled numerous matters relating to financial supervisions, inspections and sanctions of financial companies at the Financial Supervisory Service for fifteen years. He also advised private sector clients on financial regulations and corporate restructuring when he worked at a major Korean law firm and accounting firm.
Mr. Kim has worked in all major departments of the banking sector of the Financial Supervisory Service and has played a leading role in major bank-related cases. Based on his experience, he provides in-depth advice on matters relating to banking and non-banking sectors. Specifically, he carried out tasks in various fields including, inspections and sanctions by the Financial Supervisory Service, establishment of bank or bank holding company, acquisition and disposition of equity in a bank or bank holding company, internal control system, financial accident prevention, incidental business (such as platform business operation), concurrent business (fund sales, trust business, etc.), designation of innovative financial services, business outsourcing, loans and deposits, terms and conditions review, financial consumer protection, real name verification of financial, personal (credit) information protection, overseas expansion (investment), investment and management of affiliates, Basel III regulations such as issuance of capital securities, soundness supervision such as management status evaluation, bank accounting, disclosure, credit offering supervision, corporate restructuring, and external audit.
With his extensive understanding and specific experience in the financial industry, he provides advice that is practical to clients. In particular, he strives to provide a comprehensive and workable solution that considers financial practice, financial supervision, and management strategy in a timely manner.
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Yong Jung Kim began his career in 2005 and has handled numerous matters relating to financial supervisions, inspections and sanctions of financial companies at the Financial Supervisory Service for fifteen years. He also advised private sector clients on financial regulations and corporate restructuring when he worked at a major Korean law firm and accounting firm.
Mr. Kim has worked in all major departments of the banking sector of the Financial Supervisory Service and has played a leading role in major bank-related cases. Based on his experience, he provides in-depth advice on matters relating to banking and non-banking sectors. Specifically, he carried out tasks in various fields including, inspections and sanctions by the Financial Supervisory Service, establishment of bank or bank holding company, acquisition and disposition of equity in a bank or bank holding company, internal control system, financial accident prevention, incidental business (such as platform business operation), concurrent business (fund sales, trust business, etc.), designation of innovative financial services, business outsourcing, loans and deposits, terms and conditions review, financial consumer protection, real name verification of financial, personal (credit) information protection, overseas expansion (investment), investment and management of affiliates, Basel III regulations such as issuance of capital securities, soundness supervision such as management status evaluation, bank accounting, disclosure, credit offering supervision, corporate restructuring, and external audit.
With his extensive understanding and specific experience in the financial industry, he provides advice that is practical to clients. In particular, he strives to provide a comprehensive and workable solution that considers financial practice, financial supervision, and management strategy in a timely manner.
Recent Accolades
