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Lee & Ko News

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Awards Ranking
Lee & Ko Wins Three Awards at the Asialaw Awards 2025, including 'South Korea Firm of the Year'
Lee & Ko was honored with three major awards at the Asialaw Awards 2025, including the “South Korea Firm of the Year”, “Impact Deal and Case Awards”, and “South Korea Honourable Mention Lawyer (Client Choice Awards).” With these recognitions, Lee & Ko achieved the highest number of awards among Korean law firms this year. 

In the firm category, the “Client Choice Awards – South Korea Firm of the Year” is presented to the firm that receives the highest evaluation from clients, underscoring once again Lee & Ko’s strong client satisfaction and trust. Recognizing high-profile transactions that have made a significant impact on the global and regional stage, the “Impact Deal and Case Awards” honored Lee & Ko for its leading role in three major transactions: the Dangjin Phase 1 Solar Power Project (120 MW capacity) (in the energy sector); ICON Offshore's RM429 million maritime acquisition of equity interests in Vietnamese port operators (in the maritime sector); and the NAIA Airport USD1.38 billion financing (in the finance sector). In the individual category, Jaewoo Kwak, a Partner in Lee & Ko’s Intellectual Property Group, was named “South Korea Honourable Mention Lawyer (Client Choice Awards).” 

Asialaw’s latest annual rankings also distinguished Lee & Ko as an ‘Outstanding Firm’ across all 24 practice areas, reaffirming its outstanding capabilities across a broad spectrum of sectors in Korea and the wider Asia-Pacific region.

The Asialaw Awards are presented by Asialaw, an affiliate of Euromoney, the global financial publication. Each year, the awards celebrate leading law firms across 11 practice areas, 7 industries, and 20 jurisdictions throughout the Asia-Pacific region.
The awards won by Lee & Ko are as follows.
 
[Editor’s Choice Awards]
 Impact Deals and Cases
    - Dangjin Phase 1 Solar Power Project
    - ICON Offshore's RM429 Million Maritime Acquisition
    - NAIA Airport US$1.38 Billion Financing

[Client Choice Awards]
 South Korea Firm of the Year
 South Korea Honourable Mention Lawyer - Jaewoo Kwak
2025.11.12
Awards Ranking
Lee & Ko Honored in Six Categories at the ALB Korea Law Awards 2025, Including "Litigation Law Firm of the Year"
Lee & Ko has once again reaffirmed its position as one of Korea’s premier law firms earning six honors including “Korea Deal Firm of the Year” and “Litigation Law Firm of the Year” at the ALB Korea Law Awards 2025, hosted by Asian Legal Business (ALB), a Thomson Reuters affiliate and one of Asia’s most respected legal publications.

In the Firm Categories, Lee & Ko was recognized as “Korea Deal Firm of the Year”, “Litigation Law Firm of the Year”, and “Tax & Trusts Law Firm of the Year”, achieving its third consecutive recognition in the litigation category. These accolades highlight the firm’s sustained excellence across dispute resolution, corporate advisory, and tax practices, supported by exceptional teamwork and execution capabilities. In particular, the firm achieved significant victories in cases of broad social and economic importance, including the Pohang Earthquake Damages Appeal, the HSBC Short-Selling Criminal Case, and the SK Chemicals Humidifier Disinfectant Case. 

Beyond litigation, the firm’s transactional and advisory expertise was also recognized through its work on several landmark matters, such as LG Energy Solution’s acquisition of assets from Ultium Cells LLC, SK’s sale of SK Specialty, and Lotte Group’s VAT dispute, underscoring the firm’s depth of experience and cross-practice capabilities.

In the Deal Categories, Lee & Ko earned top honors for its exceptional advisory capabilities in M&A and Capital Markets, winning “Debt Market Deal of the Year” for advising on Hanwha Life Insurance’s Tier II Subordinated Capital Securities, “Equity Market Deal of the Year” for LG Chem, Ltd.’s issuance of exchangeable bonds due 2028, and “M&A Deal of the Year” for Korean Air Lines’ acquisition of Asiana Airlines and sale of Asiana Airlines’ cargo business.

The ALB Korea Law Awards celebrate the most outstanding achievements in Korea’s legal market, evaluating law firms and in-house teams based on submitted materials and independent research. These six awards are a testament to Lee & Ko’s unwavering commitment to excellence, innovation, and leadership across all practice areas.

The awards won by Lee & Ko are as follows.
[Firm Categories]
 Korea Deal Firm of the Year 
 Litigation Law Firm of the Year 
 Tax and Trusts Law Firm of the Year 

[Deal Categories]
 Debt Market Deal of the Year (Hanwha Life Insurance Tier II Subordinated Capital Securities)
 Equity Market Deal of the Year (LG Chem, Ltd. Issuance of Exchangeable Bonds due 2028)
 M&A Deal of the Year (Korean Air Lines Acquisition of Asiana Airlines and Sale of Asiana Airlines Cargo Business)
2025.11.07
Awards Ranking
ABLJ Named 19 Lee & Ko Lawyers in '2025 Korea Top 100 Lawyers'


19 lawyers from Lee & Ko have been selected in the '2025 Korea’s Top 100 Lawyers' researched by Asia Business Law Journal. Yong Seok Ahn and Kyu Wha Lee have also been recognized as one of the most influential lawyers in Korea, being named an “ICON” for their ability to provide valuable insights to the legal community based on their extensive experience.
 
The lists of Korea’s Top Lawyers selected from Lee & Ko are as follows:

 Banking & Finance: Woo Young Jung, Yeo Kyoon Yoon
 Capital Markets: Jin Hong Kwon, Hyunjoo Oh
 Competition/Antitrust: Yong Seok Ahn, Hwan Jeong
 Corporate/M&A: Sanggon Kim, Ho Joon Moon, Kyu Wha Lee, Hyeong Gun Lee
 Dispute Resolution: Arbitration: Jinyoung Jung
 Dispute Resolution: Litigation: Won Seok Ko
 Employment: Sang Hoon Lee 
 Insurance: Jin Hong Kwon, Jinyoung Jung
 IP: Jae Hoon Kim, Un Ho Kim
 Projects & Energy: Hun Ko, Dong Eun Kim
 Shipping: Jinyoung Jung, Woo Young Jung
 TMT: Hwan Kyoung Ko, Kwang Bae Park

Asia Business Law Journal (ABLJ), an Asian regional law magazine, conducts research on thousands of domestic and foreign in-house counsel as well as lawyers at international law firms to select the Top 100 lawyers in Korea every year.
 
2025.10.31
Seminar/Event
Lee & Ko hosts '2025 11th Lee & Ko M&A Forum'
Lee & Ko hosted its 11th M&A Forum on October 30, 2025, marking another successful year of this annual event. 

Since its inception in 2015, the Lee & Ko M&A Forum has served as a platform for introducing the latest issues in the M&A field and sharing Lee & Ko’s accumulated expertise with professionals in the industry. This year, the event once again received an enthusiastic response, with more than 500 M&A practitioners and corporate representatives participating both online and offline.

In Session 1 of the Forum, Partner Attorneys Dajoo Jung and Sejoong Lee presented on the topic of “Recent Trends in Corporate Control Disputes and Amendments to the Commercial Code.” They outlined the growing trend of control disputes arising amid the spread of shareholder activism and examined the potential impact of the recent amendments to the Commercial Code on such disputes, while also presenting practical strategies for corporate responses. By linking the highly discussed topic of the Commercial Code reform with corporate control disputes, the session drew strong attention and positive feedback from participants.

Session 2 featured Partner Attorney Hyung Soo Lee and Foreign Attorney Seung Hyo Baek, who presented “Recent Trends and Key Issues in Overseas Investment: Focus on Brownfield and Greenfield Projects.” They discussed recent developments in cross-border M&A, reviewing overseas investment trends over the past five years by distinguishing between Brownfield and Greenfield investments, and highlighting their respective characteristics and key considerations. The session concluded with additional presentations by Yun A Kang, Head of Lee & Ko’s Beijing Office, Jae Hoon Choi, Head of the Japan Team, and Woongryol Baek, Head of the Vietnam Office, who shared updates on regulatory trends and practical responses in the U.S., EU, China, Japan, and Vietnam, drawing strong interest from participants engaged in or preparing for cross-border M&A transactions.

Now in its 11th year, the remarkable attention and response that the Lee & Ko M&A Forum continues to receive from M&A professionals stem from our clients’ appreciation of the Forum’s well-prepared, insightful, and timely discussions led by the Lee & Ko M&A team.

Looking ahead, Lee & Ko’s Corporate Practice Group will continue its efforts to ensure that the M&A Forum remains a meaningful and insightful platform for M&A practitioners and corporate professionals in Korea.
2025.10.30
Seminar/Event
Seminar on ‘The First 100 Days After a Dispute Arises: Settlement, Evidence, Forums, and Strategy’
On 27 October 2025, Lee & Ko successfully hosted a seminar titled ‘The First 100 Days After A Dispute Arises: Settlement, Evidence, Forums, and Strategy’ during the Seoul ADR Festival 2025. Recognizing that early moves during the first 100 days of a cross-border dispute can determine the trajectory of the entire case, the seminar brought together seasoned dispute resolution specialists to share tactical insights on how parties can put their case on the strongest footing and seize the initiative before momentum is lost.

The seminar commenced with Opening Remarks and an Introduction by Dr. Eun Young Park, Head of the Global Disputes Group at Lee & Ko. The program featured two insightful panel discussions that explored key issues arising in the early stages of cross-border disputes.

In the first session, a panel discussion was held under the theme “Early Leverage: Emergency Relief and Settlement Strategies.”  The discussion was moderated by Zac Sharpe (Lee & Ko) and featured a panel consisting of Julian Bailey (Jones Day), Nakul Dewan KC (Twenty Essex), Hyunyang Koo (Lee & Ko), and Young Shin Um (KCAB). The panel shared meaningful insights on the practical viability of seeking early emergency relief in arbitral proceedings through courts and emergency arbitrators, the use of various methods of dispute resolution including consultations and mediation, as well as early settlement tactics taking into consideration factors such as the possibility of adverse cost awards and differing positions on without-prejudice privilege between jurisdictions. 

The second session, titled “Laying the Groundwork: Evidence, Strategy, and Tribunal Formation,” was moderated by Dr. Eun Young Park (Lee & Ko), and featured a panel consisting of Elodie Dulac (King & Spalding), Peter Turner KC (39 Essex Chambers), Han-Earl Woo (Lee & Ko), and Bami Yoo (Lee & Ko). This session addressed the necessary qualities of an arbitrator and the relationship between an arbitrator’s legal background and legal reasoning from the perspective of both counsel and arbitrator. The panelists also discussed practical tips and protocols for document retention, evidence gathering and the application of privilege with particular emphasis on the Korean context. 

The seminar was well received by in-house counsel and foreign law firm practitioners, as it offered practical perspectives on various early-stage strategies that parties can effectively utilize when a dispute arises.
2025.10.27
Awards Ranking
Lee & Ko Recognized as Top Law Firm in All 24 Categories by ‘Asialaw Profiles 2025’


Lee & Ko has once again reaffirmed its position as Korea’s leading law firm, being recognized as a top-tier firm across all 24 industry sectors and practice areas in Asialaw Profiles 2025. This marks the fifth consecutive year that Lee & Ko has achieved this distinction, an accomplishment unmatched by any other domestic law firm, many of which received top rankings only in select areas.

This recognition reflects Lee & Ko’s breadth of expertise, market-leading capabilities, and client trust across all key areas of legal practice in Korea and the Asia-Pacific region.

In addition, 44 Lee & Ko professionals were honored as Senior Statesman, Elite Practitioner, Distinguished Practitioner, Notable Practitioner, or Rising Star, highlighting the firm’s depth of individual talent and professional excellence.


Industry Sectors 
 Aviation and Shipping
 Consumer goods and Services
 Industrials and Manufacturing
 Insurance
 Pharmaceuticals and Life sciences
 Technology and Telecommunications
 Banking and Financial services
 Energy
 Infrastructure
 Media and Entertainment
 Real estate

Practice Areas
 Banking and Finance
 Competition/Antitrust
 Corporate and M&A
 Intellectual Property
 Labour and Employment
 Regulatory
 Tax
 Capital Markets
 Construction
 Dispute Resolution
 Investment Funds
 Private Equity
 Restructuring and Insolvency


 Banking and Financial services: Woo Young Jung, Yeo Kyoon Yoon, Yong-Jae Chang, Hyunjoo Oh, Seunga Hyun, Myoung Chul Kwak
 Banking and Finance: Woo Young Jung, Yeo Kyoon Yoon, Yong-Jae Chang, Myoung Chul Kwak, Samsung Kim, Min Ha Song
 Capital Markets: Hyunjoo Oh, Seunga Hyun
 Competition/Antitrust: Yong Seok Ahn, Hwan Jeong, Hyun Chul Kim, Jeong-Ho Sun, Jeong Yoon Choi, Suruyn Kim
 Corporate and M&A: Kyu Wha Lee, Sanggon Kim, Ho Joon Moon, Hyeong Gun Lee
 Dispute Resolution: Won Seok Ko, Saemee Kim
 Energy: Dong Eun Kim, Hun Ko, Insoo Kim
 Infrastructure: Dong Eun Kim, Hun Ko, Insoo Kim, Samsung Kim, Min Ha Song
 Insurance: Gidon Nam, Jinyoung Jung, Jin Hong Kwon
 Intellectual Property: Jae Hoon Kim, Un Ho Kim, Keum Nang Park, Jaewoo Kwak, Heon Lee
 Labour and Employment: Sang Hoon Lee, Chang Soo Jin, Hyunseok Song , William Kim
 Media and Entertainment: Kwang Bae Park
 Real estate: Jung Hwan Lee
 Restructuring and Insolvency: Wan Shik Lee, Eunjai Lee, Jung Hyun Lee
 Shipping: Jinyoung Jung , Gidon Nam
 Tax: Ok Hyun Ma, Sung Hwan Kim
 Technology and Telecommunications: Kwang Bae Park, Hwan Kyoung Ko, Samuel (Soon-Yub) Kwon, Yong Seok Ahn

Asialaw Profiles is published annually by Asialaw, an affiliate of the global financial journal Euromoney. Asialaw Profiles ranks law firms and individual practitioners across the Asia-Pacific region based on law firm submissions, client and peer interviews, and independent market research.

 
2025.10.22

Press & Releases

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[The Law Times] Lee & Ko Named “Litigation Law Firm of the Year” at ALB Korea Law Awards 2025[The Law Times] Lee & Ko Named “Litigation Law Firm of the Year” at ALB Korea Law Awards 2025
On November 10, 2025, The Law Times reported that Lee & Ko has received recognition in six categories at the ALB Korea Law Awards 2025, hosted by Asian Legal Business (ALB), a leading international legal publication. In the Practice-Firm category, which honors law firms demonstrating excellence in their respective practice areas, Lee & Ko was named the Korea Deal Firm of the Year, Litigation Law Firm of the Year, and Tax and Trusts Law Firm of the Year. The firm was also recognized for its advisory roles in several high-profile transactions spotlighted in the Deal and Transaction categories: Debt Market Deal of the Year for Hanwha Life’s issuance of overseas subordinated capital securities; Equity Market Deal of the Year for LG Chem’s issuance of overseas exchangeable bonds; and M&A Deal of the Year for Korean Air’s acquisition of Asiana Airlines and divestment of its cargo business. 

The article further noted that “to date, Lee & Ko has successfully handled numerous high-stakes cases, including the Pohang earthquake damages appeal, the HSBC short-selling criminal case, and the SK Chemicals humidifier disinfectant litigation. In addition, during the evaluation process, the firm’s proven expertise was demonstrated in several major transactions, such as LG Energy Solution’s acquisition of Ultium Cells LLC shares, SK Specialty’s sale of a controlling interest, the value-added tax dispute involving Lotte Group, etc.”
 
2025.11.10
[The Asia Business Daily] [Women Leaders Forum 2025] Women’s Power: A Compass for Navigating in Times of Great Transition - Hyunjoo OH
On November 6, 2025, The Asia Business Daily featured Lee & Ko Partner Hyunjoo Oh in its coverage, honoring her selection as a “Power K-Woman” at the Women Leaders Forum 2025. The article underscored that “the selection of Power K-Woman values authentic social influence above individual fame, based on criteria for innovation, creativity, pioneering spirit, inclusiveness, dedication, and work-life balance,” and closed with the observation that “Attorney Hyunjoo Oh emphasizes the importance of internalizing these standards, urging others not to follow suit but to chart their own course through self-reflection.”
2025.11.06
[Asia Today] Minseok Si, Head of Lee & Ko’s ESG Center: “Dismantling the Dual Structure Is a Necessary Hurdle… We Must Balance an Expanded Concept of ‘Employer Status’ with the ‘Essence of Managerial Authority’”
On September 17, 2025, Asia Today published an interview with Minseok Si, Head of the ESG Center at Lee & Ko. The article introduced Mr. Si as a labor–management relations expert who served for over 30 years at the Ministry of Employment and Labor, including as Senior Administrative Officer for Employment & Labor and as Commissioner of the Seoul Regional Employment and Labor Office. Drawing on his extensive field experience and policy design/coordination capabilities, he now plays a strategic role at Lee & Ko in linking labor-sector issues with corporate ESG initiatives.

In the interview, Mr. Si stated that “the Yellow Envelope Act fundamentally embodies an intent to resolve the dual structures and polarization between non-regular and regular workers, large enterprises and SMEs, and the central and local spheres.” He added that, “from the perspective of building a virtuous cycle, it accords with the spirit of ESG. Although it is a new and untested domain, it is a mountain we must cross and a challenge we must overcome.” He further emphasized the need to strike an appropriate balance between expanding the scope of “employer status” and preserving the “essence of managerial authority.”
2025.09.17
[Aju Business Daily] Lee & Ko Selected as Tier 1 across All Practice Areas in IFLR1000 2025
On September 16, 2025, Aju Business Daily reported on Lee & Ko’s designation as a Tier 1 firm in all eight evaluated practice areas in the 2025 edition of the International Financial Law Review (IFLR1000). The report noted, “Lee & Ko has achieved Tier 1 status in every practice area for 14 consecutive years, and in the individual practice area rankings, 61 experts have been named Leading Lawyers, further demonstrating the firm’s outstanding capabilities as a premier law firm in Korea.” The report continued, “Attorney Hyunjoo Oh (JRTI 28th) of Banking & Finance Group has also received the distinguished honor of being named a Women Leader for the sixth consecutive year. With 27 years of experience in the capital markets, Ms. Oh is a finance specialist whose practice extends across the full spectrum of capital markets transactions—including securities and derivatives—together with capital markets regulation, disputes, foreign exchange regulation, and other areas of corporate finance.”
2025.09.16

Deals & Cases

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Providing legal advice on production-related matters, including those for Netflix series, and assisting with intellectual property clearance
Lee & Ko has been advising on production-related contracts and intellectual property clearance—covering copyright law, the Unfair Competition Prevention Act, and publicity rights—for Netflix series since 2022, contributing to the smooth production and distribution of major works. Representative projects include Squid Game Seasons 2 and 3, Culinary Class Wars, The Trauma Code: Heroes on Call, Karma, and Gyeongseong Creature Seasons 1 and 2.

Lee & Ko reviews a wide range of agreements essential to the production process, including talent and crew contracts, post-production agreements such as VFX, location leases, copyright use consents, and overseas PSAs for foreign shoots. Drawing on extensive experience, Lee & Ko provides practical, production-focused legal advice tailored to the needs of clients.

Lee & Ko’s clearance reviews primarily address issues in copyright, trademark, patent, and unfair competition law, as well as matters involving real names or depictions of real-life events. Depending on the content, Lee & Ko also advises on specialized issues, such as the use of Olympic symbols, youth protection in drama scenes and filming, and personal data consent. This breadth of expertise ensures that producers receive effective, comprehensive guidance across the many legal challenges of content creation.

Lee & Ko further supports clients on Errors & Omissions (E&O) insurance matters, including preparing title reports and conducting IP clearance, to help mitigate the risk of future copyright and personality rights claims. Representative work in this field includes MBC dramas Chief Detective 1958, Doubt, and Oh My Ghost Clients; SBS dramas Revenant, The First Responders, Payback: Money and Power and JTBC’s Reborn Rich.

Through these production-related legal services, Lee & Ko helps Netflix and leading production companies to actively identify and resolve legal issues in advance, safeguard against disputes, and ensure the seamless development and release of content. Lee & Ko continues to play a trusted role across numerous high-profile productions, earning consistent recognition and positive feedback from both Netflix and its production partners.

 
2025.06.30
Consulting on the Introduction of the Accountability Map following the Amendment of the Act on the Corporate Governance of Financial Companies July 2024 ~
Lee & Ko’s Finance & Securities Group successfully completed projects for major financial companies across all financial sectors during the first half of 2025. These clients included BNK Financial Group, Suhyup Bank, DB Life Insurance, MetLife Insurance, DB Insurance, Lotte Insurance, Korean Reinsurance, Seoul Guarantee Insurance, Hyundai Card, Hyundai Commercial, Kyobo AXA Investment Managers, Daishin Securities, and Hyundai Capital, spanning banks, securities firms, card companies, capital firms, and savings banks. The projects involved preparing and submitting the newly introduced "Accountability Map" to the financial supervisory authorities in accordance with the amended Act on the Corporate Governance of Financial Companies, as well as refining the internal control systems of the respective financial institutions.

The introduction of the Accountability Map requires each financial company to prepare and submit a document to the financial authorities that specifically outlines the responsibilities of the CEO and executives related to internal controls. The implementation of this system necessitated systematic and detailed preparation by each financial company, integrating both legal and practical perspectives.

In response, Lee & Ko’s Finance & Securities Group went beyond simple legal advisory in these projects, playing a pivotal role in ensuring the effective operation of each financial company's internal control system as follows:
 
  • Designing an Effective Accountability Allocation Structure: We designed a customized Accountability Map without gaps or redundancies by meticulously analyzing each company's work procedures and lines of command and supervision.

  • Refining Overall Internal Regulations related to Internal Control: Through a detailed analysis of approximately 80 major laws and regulations related to internal control, we reviewed and amended key internal regulations, including the internal control standards.

  • Providing a Comprehensive Diagnosis and Improvement Plan for the Internal Control System: We contributed to establishing a practically operable internal control system by comprehensively diagnosing potential risk factors in the existing system and proposing improvement measures.

Through the successful execution of these projects related to the introduction of the Accountability Map, our Finance & Securities Group has solidified its position as the most trusted legal advisor in the field of financial regulation by enabling our clients to build stable internal control systems amidst a rapidly changing financial regulatory environment.
2025.06.30
Hanwha Life Insurance’s Issuance of USD 1 Billion Capital Securities
Lee & Ko acted as Korean legal counsel to the joint lead managers in connection with Hanwha Life Insurance’s successful issuance of USD 1 billion hybrid capital securities in the international markets on June 24, 2025.

Despite heightened uncertainty in global financial markets due to the ongoing conflict in the Middle East, the offering was met with strong investor demand, attracting orders in excess of USD 8.8 billion—more than eight times the issuance amount—underscoring the deal’s success.

The securities were structured as 30-year notes callable after 5 years and were priced at an annual coupon of 6.3%. The transaction enabled Hanwha Life to strengthen its capital adequacy position under the Korean Insurance Capital Standard (K-ICS).

Lee & Ko provided a full range of legal support throughout the transaction, including review of the underwriting agreement, bond terms, and offering circular to ensure compliance with K-ICS requirements. Notably, following the circulation of the offering circular but just ahead of pricing, a revision to the Korean Insurance Supervisory Regulation lowered the recommended K-ICS threshold applicable to early redemption of subordinated bonds. Lee & Ko promptly coordinated with the underwriters and international counsel to issue a supplemental investor disclosure, ensuring the delivery of accurate information to investors and facilitating a successful issuance.

In addition to this transaction, Lee & Ko has advised on a number of major offshore bond offerings in the first half of 2025 by leading Korean issuers such as LG Chem, Korea National Oil Corporation, Korea Ocean Business Corporation, KB Kookmin Bank, KT&G, LG Energy Solution, Mirae Asset Securities, Industrial Bank of Korea, Hana Securities, and Hyundai Capital—further demonstrating its deep expertise and leading role in Korea’s capital markets practice.
 
2025.06.24
Obtained a complete win on behalf of a secondary battery equipment manufacturer in litigation seeking an injunction and damages for patent infringement
On November 19, 2021, Company C, a manufacturer of equipment for secondary batteries, filed a lawsuit against Wonik PNE Co., Ltd. (the “Company”), which operates in the same industry. The counterparty alleged that the Company was infringing its patent for a “secondary battery pouch folding device” (the “Subject Patent”) and sought both an injunction and KRW 3 billion in damages.

Representing the Company, Lee & Ko argued that the true inventor of the Subject Patent is employee A, and that the Subject Patent amounts to an employee invention that rightfully belongs to the Company. On this basis, Lee & Ko argued that the counterparty’s claim of patent infringement constituted an abuse of patent rights, since the Company was the legitimate patentee. The facts showed that employee A completed the invention while still employed by the Company, but did not disclose it to the Company. Instead, A provided the design drawings to another employee, B. After leaving the Company, B filed for and registered the Subject Patent in his own name, and later transferred it to the counterparty, a company he had established. Lee & Ko persuasively argued that, under these circumstances, the counterparty’s assertion of patent infringement was an abuse of rights. As a result, the Company secured a complete victory at the first instance on October 11, 2024.

Although Company C filed an appeal, Lee & Ko, acting on behalf of the Company, initiated a claim against C seeking the transfer of the Subject Patent registration. The courts recognized that the application for the Subject Patent qualified as an “application filed by an unentitled person” and ruled in favor of the Company. The Company secured a complete victory at both the first instance and on appeal before the IP High Court. On June 5, 2025, the Supreme Court dismissed C’s appeal, thereby rendering the final the judgment. Following this decision, C withdrew its own appeal, making the case fully resolved.

Lee & Ko’s IP Practice Group conducted a detailed analysis of the technical features of the Subject Patent, the Company’s technical data, as well as related email communications and messenger records. Based on this review, the team successfully proved that the Subject Patent was not B’s personal invention, but rather an employee invention by A, thereby securing a judgment ordering the transfer of the patent rights. Consequently, C’s claims for an injunction and damages for patent infringement were also dismissed. This case highlights Lee & Ko IP’s outstanding litigation capability, demonstrating how thorough technical examination and rigorous legal analysis can lead to a complete victory for the client.
 
2025.06.12
Lee & Ko Secures Merger Approval for Tving-Wavve Interlocking Directorates
Lee & Ko represented CJ ENM and TVING in the Korea Fair Trade Commission’s (“KFTC”) merger review of a transaction which CJ ENM sought to acquire control of Wavve by having its executives hold concurrent positions at Wavve, based on the premise of a future TVING-Wavve merger. Lee & Ko successfully secured conditional approval with corrective measures that minimize the impact on the business operations of the companies.

In this case, the companies had a high market share in the subscription-based OTT market which is focused on pre-produced content. The KFTC, in line with its precedents in the OTT and media sectors, conservatively defined the relevant market in a manner disadvantageous to the companies. However, Lee & Ko utilized its deep understanding of the media sector and extensive experience in merger cases to persuasively present arguments addressing the KFTC’s concerns regarding the potential anticompetitive effects of the transaction. This resulted in the KFTC concluding that the transaction posed no concerns regarding (i) vertical overlap in the content supply and OTT markets and (ii) conglomerate effects between the OTT market and mobile telecommunications retail market.

Lee & Ko proactively utilized the voluntary commitment procedure, which was recently introduced in 2024, to propose behavioral remedies that addressed the KFTC’s concerns regarding potential anticompetitive effects and minimize business disruptions to the companies. In close coordination with the KFTC, Lee & Ko effectively demonstrated the effectiveness of the remedies and timely secured the KFTC’s approval of the transaction. According to the KFTC, this case is particularly meaningful as it is the first instance where behavioral remedies were imposed utilizing the newly implemented voluntary commitment procedure.
 
2025.06.10
Court Upholds Legality of Wage Peak System Based on Abuse of Labor Union’s Prior Consent Right.
The Labor & Employment Group of Lee & Ko successfully represented G-Institute in the High Court proceedings of a case in which an employee subject to a wage peak system challenged the validity of the system and claimed the difference in wages. The High Court overturned the lower court’s decision, which had deemed the wage peak system unlawful, and rendered a judgment upholding its legality.

Specifically, Lee & Ko’s Labor & Employment Group conducted a thorough review and analysis of the background leading to the introduction of the wage peak system, official correspondences exchanged between G-Institute and the labor union, and emails related to the union’s protest activities. Based on this analysis, Lee & Ko effectively argued and established the following:
(1) Despite G-Institute’s good-faith efforts to engage in negotiations for the introduction of the wage peak system, the labor union sent only blanket opposition letters without presenting any specific opinions or countermeasures, which constituted an abuse of its prior consent right under the collective bargaining agreement.
(2) G-Institute provided sufficient explanation through informational sessions and distributed explanatory materials that were easily understandable by employees, and did not unduly interfere in the process of obtaining employees’ consent; and
(3) The wage peak system in question was introduced in connection with an extension of the mandatory retirement age. Although some employees maintained their original retirement age, the degree of disadvantage imposed overall could not be deemed excessive.

This case is a key example that demonstrates Lee & Ko’s capabilities, particularly in successfully responding to allegations involving the abuse of a labor union’s prior consent rights under a collective bargaining agreement. It also serves as valuable guidance in practice for employers who face unilateral opposition from labor unions when attempting to implement new systems or who must navigate adverse changes to work rules through collective decision-making processes in the absence of a majority union.
2025.06.05
Acquisition financing in respect of acquisition of a controlling stake in Jeisys Medical Inc.
Lee & Ko have successfully advised NH Investment & Securities Co., Ltd. and the syndicate of lenders in respect of a KRW 500,000,000,000 bridge financing and a KRW 325,000,000,000 acquisition financing in connection with the acquisition of a controlling stake in the share capital of Jeisys Medical Inc. (“Target”) by Archimed (a private equity firm based in France) acting through its special purpose vehicle Syracuse SubCo.

The acquisition of the Target involved a sale and purchase transaction in respect of existing shares in the Target with the largest shareholder as well as a tender offer for shares in the Target. In particular, a complex transaction structure was contemplated whereby an overseas private equity firm is to establish a number of special purpose vehicles at different layers; utilize the Korean special purpose vehicle to undertake the acquisition; and, following the acquisition, consummate a de-listing of the Target and a merger of the special purpose vehicles with the Target. This in turn called for robust and tailored legal analyses in order to bolster lender protections as well as seamless communications with the obligor group all of which Lee & Ko delivered.

Lee & Ko provided all-encompassing legal advice and legal assistance from the initial transaction structuring stage to completion including, without limitation, preparation of finance documents, negotiation of material terms with the borrower and review of closing documentation. Furthermore, Lee & Ko delivered thorough and efficient legal advice on issues arising out of a corporate acquisition effected by way of a tender offer. Based on its depth of expertise and experience, Lee & Ko facilitated a successful closing by assisting with selection of an optimal structure and by bridging gaps between principals in the face of risks and challenges posed by a multi-layer holding structure and changes in circumstances before and after the tender offer.
 
2025.05.30

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