About
Managing Partner:Sang Gon Kim
Number of partners: 330
Number of lawyers:690
Languages:Korean, English, Chinese, Japanese, German, French, Spanish, Russian and Vietnamese
Firm Overview:
Korea’s premier full-service law firm. Lee & Ko’s practice groups are consistently ranked among the top in each field of practice by leading Korean and international professional publications.
Practice Areas:
Anti-Corruption & Regulatory
Antitrust & Competition
Aviation
Banking & Finance
Bankruptcy, Insolvency & Corporate Restructuring
Capital Markets & Securities
Corporate & M&A
Corporate Governance
Customs
Energy
Environment
Foreign Direct Investment
Health Care & Life Science
Insurance
Intellectual Property
International Arbitration
International Trade
Labour & Employment
Litigation
Maritime & Shipping
Overseas Investment
Private Equity & Venture Capital
Privatisation
Product Liability
Real Estate & Construction
Regulatory & Compliance
Shipping & Transportation
Tax
Technology, Media & IT
White-Collar Crime
Main Areas of Practice:
Competition/Antitrust:
■ Successfully represented the Korean Bar Association and Seoul Bar Association in the appeal of the KFTC decision, which found that the bar associations had violated the laws on unfair trade practices and advertising for regulating the use of legal tech by attorneys, to result in the Seoul High Court’s landmark decision rejecting the KFTC decision and ruling in favor of the bar associations.
■ Successfully represented Novozymes in the merger control filing for Novozymes’ USD 12.3 billion merger with Chr. Hansen by persuading the KFTC to issue unconditional clearance despite its initial position that the transaction would result in multiple horizontal overlaps and/or vertical links worldwide in various market segments.
Contact: Hwan Jeong
Email:[email protected]
Banking & Finance:
■ Advise for a project financing transaction worth US$860,000,000 executed by ECOPRO HUNGARY ZRT, a Hungarian subsidiary of Eco Pro BM, to build an electric vehicle battery plant in Hungary.
■ Advised Galaxia Moneytree Co., Ltd, an affiliate of Hyosung Group, on the first designation in the market as an innovative financial service (Financial Regulatory Sandbox) under the Financial Services Commission’s guidelines on token securities announced in February 2023, involving a financial instrument structure enabling investors to make fractional investments in aircraft engine lease receivables via trust beneficiary certificates mirrored by blockchain tokens, which should mark as an epoch-making event in the history of Security Token Offerings in Korea.
■ Advised Ceragem Co., Ltd. (“Ceragem”) to successfully raise KRW 50 billion by securitizing its receivables from rental users, with which Ceragem was able to repay almost all of its existing borrowings raised through previous transactions and secured funds.
Contact: Hyunjoo Oh
Email:[email protected]
Capital Markets:
■ LG Chem, Ltd. USD2,000,000,000 Exchangeable Bonds in two tranches (due 2028 and due 2030)
■ The Republic of Korea Sovereign Bonds (US$1,000,000,000) due 2029
Contact: Hyunjoo Oh
Email:[email protected]
Corporate/M&A:
■ Representation in acquisition of Osstem Implant by MBK Partners through Public Offering (Deal Value: USD 1.8 billion)
■ Representation in establishment of joint venture between LG Energy Solution and Hyundai Motor Group (Deal Value: USD 4.3 billion)
Contact: Ho Joon Moon
Email:[email protected]
Dispute Resolution:
■ Representing Korean corporations in an arbitration against a US supplier of nuclear technology, wherein the US company alleges that the clients are not allowed to transfer the nuclear technology they intend to export abroad. This case holds significant importance for Korea’s nuclear industry.
■ Successful representation of the Republic of Korea in this investment treaty arbitration under the Korea-U.S. FTA and 1976 UNCITRAL Arbitration Rules brought by an U.S. hedge fund. This case was highly contentious from the outset, leading to two extensive hearings on jurisdiction and merits respectively.After more than five years since the case began, the Tribunal ultimately granted Mason only approximately 16% of its claimed damages of USD 200 million.
Contact: Sanghoon Han
Email: [email protected]
Employment & Labour:
■ Successfully represented one of the world’s largest automobile manufacturers in a groundbreaking Supreme Court case involving the termination of an executive-level employee for prolonged underperformance. The case, initially lost at the Regional and Central Labor Relations Commissions, as well as the Administrative and High Court levels, was overturned at the Supreme Court. Engaged at the final appeal stage, LEE&KO highlighted deficiencies in the lower courts' rulings and presented comprehensive arguments rooted in constitutional and civil law, supported by domestic and international precedents. The Supreme Court upheld the termination, recognizing the legitimacy of the client’s Performance Improvement Plan (PIP) and establishing clear criteria for performance-based dismissals. This decision not only reversed all prior judgments but also set a significant precedent, providing clarity and guidance on the validity of such terminations, enhancing personnel management practices across industries.
■ Successfully represented one of Korea’s and the world’s largest steel manufacturers in a decade-long legal battle concerning layoffs due to managerial reasons, culminating in a pivotal Supreme Court decision. Facing decreased demand for its products amidst the 2015 petroleum price drop and U.S. energy sector downturn, the client implemented voluntary retirements and targeted layoffs. LEE&KO’s advocacy at the district court delivered a rare victory for employers in similar cases, with the court recognizing the company’s urgent financial needs. Though the high court reversed this ruling, the Supreme Court reinstated the finding, acknowledging that the client had satisfied the high threshold for “imminent necessity” based on objective financial analysis. This decision challenges the prevailing notion that layoffs are routinely unlawful and sets a significant precedent for companies undergoing financial distress. LEE&KO’s innovative use of advanced financial metrics and industry comparisons underscores its tenacity and strategic approach to reshaping layoff jurisprudence, providing a critical path forward for corporate restructuring in Korea.
Contact: Sang Hoon Lee, William Kim
Email:[email protected],[email protected]
Shipping & Transportation:
■ Advised numerous Korean LNG shipping companies participating in international bids hosted by major LNG traders or producers, including Vitol, Shell, and Qatar Gas. Thanks to Lee & Ko’s expert guidance, our clients secured multiple long-term charter-party contracts in each bidding, significantly enhancing their financial stability. These successes not only benefit our clients but also contribute to the overall strengthening of the LNG shipbuilding industry in Korea.
■ Advised a Korean cable production company called Taihan Cable & Solution (“Client”) intending to purchase and import a cable-laying vessel called MV Spirit (“Vessel”) from a Dutch owner called Boskalis. Lee & Ko has provided the client with comprehensive scope of advices relating to the purchase: deal structure, sale & purchase of the Vessel, inception of cargo insurance and hull insurance, registration of the Vessel in Korea, license issue under Korean Marine Transportation Act, bareboat charter and etc. Thanks to our expertise and experience, the Client successfully concluded this deal. This deal serves as a crucial stepping stone for the Client, providing a foundation upon which they can explore new business avenues, such as offshore cable laying projects or the development of offshore wind power plants.
Contact: Jin-Young Jung, Yang-Ho Yoon
Email:[email protected]; [email protected]
Tax & Customs:
■ Successfully represented McDonald’s Korea in a non-regular tax audit conducted by the Seoul Regional Tax Office (“SRTO”) regarding the taxpayer’s transfer pricing policy, implemented by McDonald's headquarters in Chicago. During the tax audit, SRTO argued that McDonald's Korea contributed significantly to the McDonald's Group's IP by employing DEMPE concept and proposed the Profit Split Method for transfer pricing. Initially, SRTO intended a significant TP adjustment of USD 115 million. But through meticulous analysis and innovative strategies, Lee & Ko persuaded SRTO to settle at a fraction (10%) of the initial proposed adjustment, amounting to less than USD 700K, with no adverse TP impact on future years. This case is highlighted due to its complexity and the strategic approach taken by the Lee & Ko Tax Group in navigating a high-stakes and hostile audit environment.
■ Lee & Ko achieved a significant victory representing POSCO, a leading Korean corporation operating in sectors subject to certified emission reduction, in defeating the tax authorities' attempt to impose approximately USD 145 million in corporate income tax assessment. The case stemmed from a spin-off and merger agreement between affiliated companies within the POSCO Group, namely POSCO Holdings and POSCO International, involving business units subject to carbon credit allocation. In defense of POSCO, Lee & Ko conducted a thorough analysis of spin-off succession laws, relevant Supreme Court precedents, and international legal frameworks. By presenting detailed legal interpretations and refuting opposing arguments, Lee &Ko successfully convinced the National Tax Service Advisory Committee that the transfer of free-allocated emission allowances should not be subject to taxation. This outcome underscored Lee & Ko's prowess in complex tax litigation and their ability to secure favorable results for their clients against formidable adversaries. This case holds significant implications, particularly in its ability to swiftly and efficiently resolve tax risks for companies. By obtaining a favorable determination at the tax audit stage, rather than engaging in prolonged litigation, Lee & Ko stopped unjustified taxation amounting to hundreds of millions of dollar against the taxpayer. This outcome underscores the importance of timely intervention to protect the rights of taxpayers, providing them with a precedent for a streamlined mechanism to address tax disputes in the future.
Contact: Tom Kwon, Ok Hyun Ma
Email:[email protected],[email protected]
Intellectual Property:
■ Successfully represented OCI, a Seoul-based leading specialty chemical manufacturer, in a patent dispute against a German competitor involving a patent directed to silicon manufacture method and obtaining a winning judgment whereby the Supreme Court rendered a precedent-setting ruling that elucidated the description requirement in the context of parameter inventions.
■ Successfully represented SK Trichem, an affiliate of SK Group specializing in materials, in a patent invalidation action before Intellectual Property Trial and Appeal Board and IP High Court whereby the market competitor claimed invalidity of SK Trichem’s precursor-related patent, which is essential in semiconductor business, and successfully obtaining a winning judgement before the IP High Court which was rendered final and conclusive.
Contact: Hwan Sung Park
Email:[email protected]
White Collar Crime:
■ Successfully defended Discovery Asset Management, including obtaining dismissal of arrest warrants on the representative two times for the alleged violation of the Financial Investment Services And Capital Markets Act.
■ Successfully mounted a defence for the nation’s largest K-pop management company in a case involving alleged manipulation of the share price in a M&A.
Contact:Changhee Suh, Dong Seong Nam
Ranked Offices
Provided by Lee & Ko
- SeoulHanjin Building, 63 Namdaemun-ro, Jung-gu, Seoul, Seoul, South Korea, 04532
- Web: www.leeko.com
- Tel: +82 2 772 4000
- Fax: +82 2 772 4001/2
- View ranked office
Contributions
Latest contributions provided by Lee & Ko
All contributions provided by Lee & Ko
Lee & Ko rankings
Articles, highlights and press releases
95 items provided by Lee & Ko
'Chambers Asia-Pacific 2025’ Band 1 in 11 practice areas
'Chambers Asia-Pacific 2025’ Band 1 in 11 practice areas
Asia Business Law Journal Selects 17 Lee & Ko Lawyers in '2024 Korea's Top 100 Lawyers'
Asia Business Law Journal Selects 17 Lee & Ko Lawyers in '2024 Korea's Top 100 Lawyers'
ALB Korea Law Awards 2024 Recognizes Lee & Ko in 5 Categories
ALB Korea Law Awards 2024 Recognizes Lee & Ko in 5 Categories, Including 'Litigation Law Firm of the Year'
Lee & Ko Recognized as Korea Firm of the Year in Two Categories at the 2024 Asia IP Awards
Lee & Ko Recognized as Korea Firm of the Year in Two Categories at the 2024 Asia IP Awards
Latest Legislative Trends in Korea Regarding AI
Latest Legislative Trends in Korea Regarding AI
Lee & Ko Partner Da Joo JUNG Named ‘Top 15 North Asia Litigators 2024’ by ALB
Lee & Ko Partner Da Joo JUNG Named ‘Top 15 North Asia Litigators 2024’ by ALB
Lee & Ko Selected as Top-Tier Law Firm in MIP “2024 IP Stars” Rankings
Lee & Ko Selected as Top-Tier Law Firm in MIP “2024 IP Stars” Rankings
Lee & Ko Awarded in 9 Areas including Asia Firm of the Year and South Korea Firm of the Year...
Lee & Ko Awarded in 9 Areas including Asia Firm of the Year and South Korea Firm of the Year in the 'Asialaw Awards 2024'
Tier 1 Law Firm in ALB ‘M&A Rankings 2024’
Tier 1 Law Firm in ALB ‘M&A Rankings 2024’
Lee & Ko chosen as top law firm in all 24 sectors by ‘Asialaw Profiles 2024’
Lee & Ko chosen as top law firm in all 24 sectors by ‘Asialaw Profiles 2024’
Tier1 in All Practice Areas of IFLR1000 2024
Tier1 in All Practice Areas of IFLR1000 2024
FSC Unveils Network Separation Improvement Roadmap - Expanding the Use of Generative AI and SaaS...
FSC Unveils Network Separation Improvement Roadmap - Expanding the Use of Generative AI and SaaS in the Financial Sector -
Selected 2024 Tax Law Amendment Proposals
Selected 2024 Tax Law Amendment Proposals
Recent Developments Regarding Attorney-Client Privilege in Korea
Recent Developments Regarding Attorney-Client Privilege in Korea
FSC Announces Guidelines on Determining NFTs’ Status as Virtual Assets
FSC Announces Guidelines on Determining NFTs’ Status as Virtual Assets
Lee & Ko Advised on the First Innovative Financial Service ...
Lee & Ko Advised on the First Innovative Financial Service Involving the Trust Beneficiary Certificates Following the Announcement of the Guidelines on Security Tokens
ALB Asia Top 15 ESG Law Firms for Two Consecutive Years
ALB Asia Top 15 ESG Law Firms for Two Consecutive Years
Highest Ranking in Patent Litigation by IAM Patent 1000 2024 for 10th Consecutive Year
Highest Ranking in Patent Litigation by IAM Patent 1000 2024 for 10th Consecutive Year
Attorney Vera Eun Woo Lee, chosen as MIP’s ‘Top 250 Women in IP’ for two consecutive years
Attorney Vera Eun Woo Lee, chosen as MIP’s ‘Top 250 Women in IP’ for two consecutive years
Attorney Sung Hui Yoon, selected as ‘Benchmark Asia-Pacific’s Top 40 Under 40 2024’
Attorney Sung Hui Yoon, selected as ‘Benchmark Asia-Pacific’s Top 40 Under 40 2024’
Attorney Keum Nang Park, selected as ‘Top 100 Women in Litigation 2024’ by Benchmark Litigation
Attorney Keum Nang Park, selected as ‘Top 100 Women in Litigation 2024’ by Benchmark Litigation
Lee & Ko awarded in four categories at 'Benchmark Litigation Asia-Pacific Awards 2024'
Lee & Ko awarded in four categories at 'Benchmark Litigation Asia-Pacific Awards 2024'
Concretizing Rights of Data Subjects in the AI Era
Concretizing Rights of Data Subjects in the AI Era - Implementation of the Second Amendment to the Enforcement Decree of PIPA
‘Benchmark Litigation Asia Pacific 2024’ ranks Lee & Ko in the top tier in every 10 practice areas
‘Benchmark Litigation Asia Pacific 2024’ ranks Lee & Ko in the top tier in every 10 practice areas for the second year in a row
Landmark Ruling: Supreme Court Overturns PIPC Sanctions Against E-commerce Platform Operators
Landmark Ruling: Supreme Court Overturns PIPC Sanctions Against E-commerce Platform Operators
Korean Tax Regulation Updates for 2024
Korean Tax Regulation Updates for 2024
Lee & Ko wins Specialist Award – Pro Bono at the 2024 IFLR Asia Pacific Awards
Lee & Ko wins Specialist Award – Pro Bono at the 2024 IFLR Asia Pacific Awards
Tong Keun Seol and Jin Young Jung Awarded “ESG Lawyer of the Year” and “Transport Lawyer of the Year
Tong Keun Seol and Jin Young Jung Awarded “ESG Lawyer of the Year” and “Transport Lawyer of the Year” at The Asia Legal Awards 2024
Lee & Ko Wins the Most Awards by Category and “Law Firm of the Year” at ABLJ Korea Law Awards 2023
Lee & Ko Wins the Most Awards by Category and “Law Firm of the Year” at ABLJ Korea Law Awards 2023
PIPC Announces Policy Direction for the Protection of Online Behavioral Data Used in Targeted Advert
PIPC Announces Policy Direction for the Protection of Online Behavioral Data Used in Targeted Advertising
'Chambers Asia-Pacific 2025’ Band 1 in 11 practice areas
'Chambers Asia-Pacific 2025’ Band 1 in 11 practice areas
Asia Business Law Journal Selects 17 Lee & Ko Lawyers in '2024 Korea's Top 100 Lawyers'
Asia Business Law Journal Selects 17 Lee & Ko Lawyers in '2024 Korea's Top 100 Lawyers'
ALB Korea Law Awards 2024 Recognizes Lee & Ko in 5 Categories
ALB Korea Law Awards 2024 Recognizes Lee & Ko in 5 Categories, Including 'Litigation Law Firm of the Year'
Lee & Ko Recognized as Korea Firm of the Year in Two Categories at the 2024 Asia IP Awards
Lee & Ko Recognized as Korea Firm of the Year in Two Categories at the 2024 Asia IP Awards
Latest Legislative Trends in Korea Regarding AI
Latest Legislative Trends in Korea Regarding AI
Lee & Ko Partner Da Joo JUNG Named ‘Top 15 North Asia Litigators 2024’ by ALB
Lee & Ko Partner Da Joo JUNG Named ‘Top 15 North Asia Litigators 2024’ by ALB
Lee & Ko Selected as Top-Tier Law Firm in MIP “2024 IP Stars” Rankings
Lee & Ko Selected as Top-Tier Law Firm in MIP “2024 IP Stars” Rankings
Lee & Ko Awarded in 9 Areas including Asia Firm of the Year and South Korea Firm of the Year...
Lee & Ko Awarded in 9 Areas including Asia Firm of the Year and South Korea Firm of the Year in the 'Asialaw Awards 2024'
Tier 1 Law Firm in ALB ‘M&A Rankings 2024’
Tier 1 Law Firm in ALB ‘M&A Rankings 2024’
Lee & Ko chosen as top law firm in all 24 sectors by ‘Asialaw Profiles 2024’
Lee & Ko chosen as top law firm in all 24 sectors by ‘Asialaw Profiles 2024’
Tier1 in All Practice Areas of IFLR1000 2024
Tier1 in All Practice Areas of IFLR1000 2024
FSC Unveils Network Separation Improvement Roadmap - Expanding the Use of Generative AI and SaaS...
FSC Unveils Network Separation Improvement Roadmap - Expanding the Use of Generative AI and SaaS in the Financial Sector -
Selected 2024 Tax Law Amendment Proposals
Selected 2024 Tax Law Amendment Proposals
Recent Developments Regarding Attorney-Client Privilege in Korea
Recent Developments Regarding Attorney-Client Privilege in Korea
FSC Announces Guidelines on Determining NFTs’ Status as Virtual Assets
FSC Announces Guidelines on Determining NFTs’ Status as Virtual Assets
Lee & Ko Advised on the First Innovative Financial Service ...
Lee & Ko Advised on the First Innovative Financial Service Involving the Trust Beneficiary Certificates Following the Announcement of the Guidelines on Security Tokens
ALB Asia Top 15 ESG Law Firms for Two Consecutive Years
ALB Asia Top 15 ESG Law Firms for Two Consecutive Years
Highest Ranking in Patent Litigation by IAM Patent 1000 2024 for 10th Consecutive Year
Highest Ranking in Patent Litigation by IAM Patent 1000 2024 for 10th Consecutive Year
Attorney Vera Eun Woo Lee, chosen as MIP’s ‘Top 250 Women in IP’ for two consecutive years
Attorney Vera Eun Woo Lee, chosen as MIP’s ‘Top 250 Women in IP’ for two consecutive years
Attorney Sung Hui Yoon, selected as ‘Benchmark Asia-Pacific’s Top 40 Under 40 2024’
Attorney Sung Hui Yoon, selected as ‘Benchmark Asia-Pacific’s Top 40 Under 40 2024’
Attorney Keum Nang Park, selected as ‘Top 100 Women in Litigation 2024’ by Benchmark Litigation
Attorney Keum Nang Park, selected as ‘Top 100 Women in Litigation 2024’ by Benchmark Litigation
Lee & Ko awarded in four categories at 'Benchmark Litigation Asia-Pacific Awards 2024'
Lee & Ko awarded in four categories at 'Benchmark Litigation Asia-Pacific Awards 2024'
Concretizing Rights of Data Subjects in the AI Era
Concretizing Rights of Data Subjects in the AI Era - Implementation of the Second Amendment to the Enforcement Decree of PIPA
‘Benchmark Litigation Asia Pacific 2024’ ranks Lee & Ko in the top tier in every 10 practice areas
‘Benchmark Litigation Asia Pacific 2024’ ranks Lee & Ko in the top tier in every 10 practice areas for the second year in a row
Landmark Ruling: Supreme Court Overturns PIPC Sanctions Against E-commerce Platform Operators
Landmark Ruling: Supreme Court Overturns PIPC Sanctions Against E-commerce Platform Operators
Korean Tax Regulation Updates for 2024
Korean Tax Regulation Updates for 2024
Lee & Ko wins Specialist Award – Pro Bono at the 2024 IFLR Asia Pacific Awards
Lee & Ko wins Specialist Award – Pro Bono at the 2024 IFLR Asia Pacific Awards
Tong Keun Seol and Jin Young Jung Awarded “ESG Lawyer of the Year” and “Transport Lawyer of the Year
Tong Keun Seol and Jin Young Jung Awarded “ESG Lawyer of the Year” and “Transport Lawyer of the Year” at The Asia Legal Awards 2024
Lee & Ko Wins the Most Awards by Category and “Law Firm of the Year” at ABLJ Korea Law Awards 2023
Lee & Ko Wins the Most Awards by Category and “Law Firm of the Year” at ABLJ Korea Law Awards 2023
PIPC Announces Policy Direction for the Protection of Online Behavioral Data Used in Targeted Advert
PIPC Announces Policy Direction for the Protection of Online Behavioral Data Used in Targeted Advertising