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Lee & Ko was selected as Tier 1 law firm in Korea across 16 fields according to ‘The Legal 500 Asia Pacific 2026’. Furthermore, 44 Lee & Ko attorneys were selected as ‘Hall of Fame’, ‘Leading Partners’, ‘Next Generation Partners’, and ‘Leading Associates’ in their respective fields.


Antitrust and Competition
Banking & Finance
Capital Markets 
Corporate and M&A  
Dispute Resolution  
Fintech and financial services regulatory  
Insurance 
Intellectual Property
International Arbitration
Labour and Employment
Projects and Energy  
Real Estate  
Regulatory: white-collar, compliance and investigations
Shipping
Tax
TMT


Antitrust and Competition: Hwan Jeong, Suruyn Kim, Jung Won Kwon, Jeong Yoon Choi
Banking & Finance: Yeo Kyoon Yoon, Myoung Chul Kwak
Capital Markets: Hyunjoo Oh
Corporate and M&A: Hyeong Gun Lee, Sang Gon Kim, Ho Joon Moon, Kyungchun Kim, Sung Min Kim, Daehoon Koo
Dispute Resolution: Pyoung Keun Song, Seong Won Chang, Jae Heon Park, Yeon Woo Lee
Fintech and financial services regulatory: Hyeong Min Yoo, Seong Hwan Ju
Insurance: Jin-Young Jung, Jin Hong Kwon, Sae Um Kim
Intellectual Property: Un Ho Kim, Keum Nang Park
Intellectual Property: PATMA: Kyungjin Kim, Soo Yeon Park
International Arbitration: Sanghoon Han, Saemee Kim, Han-Earl Woo
Labour and Employment: Chang-Soo Jin, Sang-Hoon Lee, Jae Hoon-Choi, William Kim, Shawn (Seong Ho) Han
Projects and Energy: Hun Ko
Real Estate: Jin Wook Yang, Jee In Kim
Regulatory: white-collar, compliance and investigations:: Tae Yop Lee
Shipping: Jin-Young Jung, Yun Jeong Seo, Yang Ho Yoon, Young Jae Park
TMT: Hwan Kyoung Ko, Kwang Bae Park, Il Shin Lee

The Legal 500 Asia Pacific is annually published by Legalease, a global agency that evaluates the capacity of law firms all over the world based on various standards through a comprehensive review of submitted documents by law firms, interviews with lawyers specialized in each field, and feedback from over 300,000 clients.
 

Lee & Ko was ranked Band 1 by 'Chambers Asia-Pacific Guide 2026’ in 10 practice areas. For the individual rankings, 72 attorneys were recognized as ‘Leading Individuals’ throughout all practice areas.
 
 
 Banking & Finance  
 Capital Markets  
 Competition/Antitrust 
 Corporate/M&A  
 Insurance 
 Intellectual Property  
 International Trade 
 Projects & Energy  
 Shipping Finance 
 Technology, Media, Telecoms

 
 Banking & Finance: Woo Young Jung, Yeo Kyoon Yoon, Yong-Jae Chang, Myoung Chul Kwak, Dong Seok Woo
 Capital Markets: Hyunjoo Oh, Seunga Hyun, Jun Woo Cho 
 Capital Markets: Securitisation: Jin Hong Kwon
 Competition/Antitrust: Yong Seok Ahn, Hwan Jeong, Jeong-Ho Sun, Suruyn Kim, Miji Lee, Byong Ki Chung 
 Corporate/M&A: Sanggon Kim, Ho Joon Moon, Hyeong Gun Lee, Yong Joon Yoon, Daehoon Koo
 Dispute Resolution: Arbitration: Saemee Kim, Zachary Sharpe, Sanghoon Han, Grace Yoon
 Dispute Resolution: Litigation: Pyoung Keun Song, Dajoo Jung, Seon Tae Kim, Jae Heon Park 
 Dispute Resolution: White-Collar Crime: Tae Ki Ghil, Taeyop Lee, Youngsub Jang, Jin So, Jae Man Yu
 Employment: Sang Hoon Lee, Chang Soo Jin, Hyunseok Song, William Kim  
 Insurance: Jinyoung Jung, Jin Hong Kwon, Yang Ho Yoon
 Intellectual Property: Jae Hoon Kim, Un Ho Kim, Keum Nang Park, Hyeon Gil Ryoo, Vera Eun Woo Lee, Hankil D. Kang, Hwansung Park, Jaewoo Kwak, Hayoun Chun 
 International Trade: Kichang Chung, Hyunsoo Joo, Young Gee Park, Young Jae Cho, Heysoo Kim 
 Projects & Energy: Hun Ko, Dong Eun Kim, Kwang Yul Kim, Jungmin Pak
 Real Estate: Junghwan Lee, Dong Seok Woo 
 Restructuring/Insolvency: Eunjai Lee, Wanshik Lee, Jung Hyun Lee, Seok Pyo Hong 
 Shipping: Jinyoung Jung, Yang Ho Yoon
 Shipping: Finance: Woo Young Jung, Yunjeong Seo
 Tax: Kyung Tae Kim, Tom Kwon  
 Technology, Media, Telecoms: Kwang Bae Park, Hwan Kyoung Ko, Ju Bong Jang, Samuel (Soon-Yub) Kwon, Sunghee Chae, Tae Joo Kim 
 North Korea - General Business Law (Foreign Expertise based abroad in South Korea): Hyung Sub Lim 

Chambers Asia-Pacific Guide is a law firm evaluation publication released by Chambers and Partners, a leading global legal publisher based in England, which selects top law firms and top lawyers in the Asia-Pacific region each year based on a comprehensive analysis of data submitted by law firms, interviews with partner lawyers and clients, and recently accomplished work.
 

Jaewoo Kwak, a partner of Lee & Ko’s Intellectual Property Group, has been selected for the Lexology Index: Client Choice 2026, in recognition of his expertise in the field of intellectual property and his exceptional client service.

Mr. Kwak is widely recognized as a highly versatile practitioner whose comprehensive and profound understanding of both technology and legal principles enables him to excel across a broad range of IP disputes and advisory matters. He achieved a dramatic turnaround and final victory in a decade-long, multi-billion-won patent battle involving ice water purifiers, and played a leading role in securing the Supreme Court decision in the unauthorized BTS photo book case, a landmark ruling that ultimately paved the way for the legislative recognition of the right of publicity in Korea.

He also possesses unparalleled expertise in international patent and trade secret disputes involving advanced technologies, as well as in complex e-discovery matters. More recently, he has garnered additional attention for his extensive work on AI-related and gaming-industry cases.

Since 2005, the Lexology Index: Client Choice has recognized lawyers around the world who demonstrate excellence in client care, based on evaluations from in-house counsel and a rigorous independent review process. Mr. Kwak’s selection reflects the continued trust placed in him by global and domestic clients, as well as his longstanding commitment to delivering the highest caliber of legal service.

On November 27, 2025, Lee & Ko’s IP & Technology Group successfully hosted a seminar titled ‘Changes in the IP and Technology Protection Environment in the Era of Technological Innovation and How to Respond.’

Lee & Ko’s IP & Technology Group’s seminar, celebrating its 11th anniversary of the annual client seminar series starting in 2015, has consistently provided an in-depth exploration of key issues in IP field. This year, the seminar marked a pivotal moment in the evolution of Lee & Ko’s IP Group into the IP & Technology Group, broadening its focus to include not only traditional IP rights but also on a wide array of emerging technology-related matters.

The first part of session centered on dispute response strategies directly relevant to corporate practices. Ms. Yi-Kang Kang opened the session on “Patent and Trade Secret Dispute Response Strategies,” covering methods for securing evidence in technology disputes and the application of punitive damages under patent law. Ms. Shin Sil Choi followed with a discussion on “Responsive Strategies for Unfair Competition Disputes,” analyzing various case law on unauthorized use of achievements under the Unfair Competition Prevention Act and offering corporate response strategies in this regard. The first session concluded with additional presentations by Ms. Soo Yeon Park, who shared “Product Defects, Recalls, and Dispute Response Strategies.” Ms. Park discussed various dispute cases and solutions related to defects in pharmaceutical products, medical devices, and household chemicals, while also addressing legal risk management strategies.

The second session featured new regulations and global dispute trends in the era of technical innovation. Mr. Jae Woo Kwak presented on “Recent Trends in AI Technology Regulation and Legal Issues,” covering global AI copyright infringement, defamation, and product liability cases, along with domestic regulations such as the Artificial Intelligence Basic Law. Mr. Ah Hyun Nam delivered “Recent Developments in U.S. ITC and PTAB,” focusing on latest global trends such as the Domestic Industry Requirement at the U.S. International Trade Commission (ITC) and Discretionary Denial at the U.S. Patent Trial and Appeal Board (PTAB). Finally, Mr. Il Gwon Kim spoke on “Latest Trends in Cross-Border Technology Disputes,” exploring cases involving attempts to bypass technological barriers in international transactions and key trends which companies should be aware of.

Lee & Ko’s IP & Technology Group is one of the leading technical legal expert teams in Korea, comprising approximately 80 intellectual property-specialized attorneys-at-law and around 80 patent attorneys with broad technical expertise in various aspects of IP. The group handles not only traditional IP matters- including patents, trademarks, copyrights, trade secrets, and unfair competition—but also a wide range of technology-related disputes and advisory work, such as biotechnology, AI and data-related disputes, semiconductors, and healthcare. With its technical expertise and unrivaled experience in the field, Lee & Ko’s IP & Technology Group provides a comprehensive one-stop legal service tailored to meet the needs of clients in various global IP disputes and related matters.

On Wednesday, November 19, Lee & Ko co-hosted a seminar titled "Trademark and Patent Law Essentials Every In-House Counsel Should Know" with the Korea In-house Counsel Association (KICA).

The seminar began with a welcome address by Mr. Un Ho Kim of Lee & Ko, and proceeded with two dedicated sessions on patent and trademark law tailored for in-house counsel, followed by a Q&A session.

The first session, presented by Ms. Eun Woo Lee of Lee & Ko, focused on "Trademark Law Essentials Every In-House Counsel Should Know." She discussed key considerations for trademark owners and users in the event of disputes, as well as strategies for securing and managing trademark rights.

The second session was delivered by Ms. Kyung Jin Kim of Lee & Ko, who spoke on "Patent Law Essentials Every In-House Counsel Should Know." Her presentation covered patent filing and registration procedures, patent trials and patent litigation, and pre- and post-dispute prevention strategies.

Lee & Ko’s IP & Technology Group is one of the leading technical legal expert teams in Korea, comprising approximately 80 intellectual property-specialized attorneys-at-law and around 80 patent attorneys with broad technical expertise across various fields. The group handles not only traditional IP matters—including patents, trademarks, copyrights, trade secrets, and unfair competition—but also a wide range of technology-related disputes and advisory work, such as product liability, product defect claims, medical devices, biotechnology, semiconductors, automobiles, software development disputes, AI and data-related disputes, and disputes involving manufacturing facilities. Drawing on extensive practical experience and expertise related to technology disputes, the group will continue to provide in-house counsel with the highest level of comprehensive legal services tailored to their needs.

Lee & Ko has been honored with two top distinctions at the 2025 Asia IP Awards, held on November 6 in Kuala Lumpur, being named “Korea Copyright Firm of the Year” and “Korea Trademark Litigation Firm of the Year.” These awards recognize the firm’s leadership and excellence across the full spectrum of intellectual property practice.

Lee & Ko’s IP & Technology Group has recently achieved a series of landmark results in high-stakes IP disputes. Most notably, the team secured a decisive victory in the widely publicized “Water Purifier Patent War,” overturning an unfavorable first-instance judgment on behalf of Coway at the appellate level and ultimately prevailing before the Supreme Court. In another precedent-setting matter, the Group successfully established that an online offer for sale of patent-infringing products directed at Korean consumers constitutes patent infringement in Korea, even when the seller’s servers are located overseas. This ruling significantly enhances the substantive protection available to rights holders in an increasingly borderless digital marketplace.

Beyond patents, the Group also advises and litigates across a diverse range of IP fields. It manages complex and high-profile copyright disputes, including prominent mobile-game litigation, and provides robust enforcement and strategic counseling for global and domestic brand owners in trademark matters. Leveraging seamless collaboration between seasoned IP litigators and the patent attorneys of the firm’s affiliated patent practice, Lee & Ko’s IP & Technology Group not only develops effective IP portfolio strategies but also delivers comprehensive ONE-STOP services, ranging from patent, trademark, and design filings for global companies to managing IP litigation and providing counsel on, and resolving, disputes involving cutting-edge technologies and diverse technology-related issues.

The Asia IP Awards honor the best law firms across the region for excellence in trademark, patent, and copyright work. Winners are selected from a shortlist of five firms based on voting by more than 5,000 in-house counsels worldwide.