Yoon & Yang LLC
Asia-Pacific Guide 2025
About
Yoon & Yang is one of the largest full-service Seoul headquartered law firms. Yoon & Yang has over 540 lawyers and other professionals including over 50 foreign qualified lawyers. Yoon & Yang’s foreign qualified lawyers include a number of experienced lawyers in the US and UK. The firm also has experienced lawyers qualified in Germany, Russia, Vietnam, China, Canada, Spain, Australia, New Zealand. Our main office in Seoul is supported by our overseas offices in Ho Chi Minh City, Hanoi, Jakarta and Tashkent.
Yoon & Yang’s one-stop integrated legal services tailored to the clients’ needs allow us to respond proactively to market changes and offer innovative solutions. For this purpose, we have a cadre of highly qualified attorneys, senior consultants and expert advisors with decades of knowledge and experience in various areas and industries.
Firm Details
Address: ASEM Tower 517 Yeongdong-daero,Gangnam-Gu Seoul, 06164 South Korea
Managing Partners: Myung Soo Lee, Young Ho Kang, Jin Guk Shi
Number of partners: 209
Number of professionals: +540
Languages: English, German, Spanish, Japanese, Korean, Russian, Vietnamese, Chinese, French
Overseas Offices
1. Tashkent Office
107-B, Amir Temur Street Tashkent, 100084 Uzbekistan
T: + 998 71 238 9032
F: + 998 71 238 9031
2. Ho Chi Minh City Office
MPlaza Saigon 17th Fl. Suite 1707, 39 Le Duan Street, District 1 Ho Chi Minh City Vietnam
T: +84 28 7304 0001
F: +84 28 7304 0002
E: [email protected]/ [email protected]
3. Hanoi Office
Lotte Center Hanoi, East Tower, 9th Fl. 54 Lieu Giai Street Cong Vi Ward, Ba Dinh District Hanoi Vietnam
T: +84 24 7304 0001
F: +84 24 7304 0002
4. Jakarta Korean Desk in Amir Syamsudin & Partners
Menara Sudirman, 9th Fl. JI. Jend. Sudirman Kav. 60 Jakarta, 12190 Indonesia
T: +62-21-522-0855
More information is available at Yoon & Yang’s Website, LinkedIn, and YouTube
Practice Areas
- Antitrust & Competition
- Banking, Securities & Finance
- Capital Markets
- Corporate/M&A
- Government Relations
- Intellectual Property
- International Trade & Customs
- Foreign Investment
- Labour/Employment
- Litigation & Arbitration
- Privacy & Data Protection & AI
- Real Estate & Construction
- Tax
- White Collar Criminal Defence
Industries
- Mobility
- Digital Assets
- Game
- Entertainment
- Technology, Media & Telecommunications
- Energy
- Maritime & Aviation
- Healthcare
- Banking & Finance
- Wealth Management
- Real Estate
- Aerospace & Defense
- Construction
Ranked Offices
Provided by Yoon & Yang LLC
- Seoul18/19/22/23/34th Fl. ASEM Tower, 517 Yeoungdong-daero, Gangnam-gu, Seoul, Seoul, South Korea, 06164
- Web: www.yoonyang.com
- Tel: +82 2 6003 7000
- Fax: +82 2 6003 7800
Contributions
Latest contributions provided by Yoon & Yang LLC
All contributions provided by Yoon & Yang LLC
Yoon & Yang LLC rankings
Articles, highlights and press releases
26 items provided by Yoon & Yang LLC
Yoon & Yang Hires Three Former Judges to Further Strengthen Litigation Practice
Yoon & Yang LLC has recently bolstered its litigation practice by recruiting three former judges as partners: Oh Young Lee, Jeong Dae Park, and Dong Bok Park.
Yoon & Yang Scores a Team Hire for Its International Tax Practice
Yoon & Yang, one of the big-six law firms in Korea, has doubled down on its international practice. The firm is being hailed for its “game changing hires” for its international tax practice with the recruitment of three leading figures from a competing law firm – Messrs. Jay Shim, Sung Hyun Ryu, and
Yoon & Yang Hires Seasoned M&A lawyer Hee Woong Yoon as Managing Partner
Yoon & Yang LLC announced that it has hired mergers and acquisitions heavyweight Hee Woong Yoon as a new Managing Partner and the Head of the firm’s newly established Future Strategy Planning Task Force.
Yoon & Yang Strengthens Antitrust & Competition Practice Group with Addition of Former KFTC Official
Yoon & Yang LLC has bolstered its Antitrust & Competition practice by welcoming former KFTC deputy director Chiyeol Kim as a partner.
Yoon & Yang Hires Adrian Bae, Ex-BAT North Asia VP, as Senior Foreign Attorney
Yoon & Yang LLC (“Yoon & Yang”) has recruited Adrian Bae, former Vice President of North Asia at British American Tobacco (BAT), the world’s largest tobacco company, as a Senior Foreign Attorney.
Yoon & Yang Announces New Leadership Appointing Senior Managing Partner Myung Soo Lee
Yoon & Yang LLC (“Yoon & Yang”) announces a leadership change, effective on January 1, 2024.
International Construction and Arbitration Expert Joins Yoon & Yang
Leading international construction and arbitration expert Joseph Lee joins Yoon & Yang’s head office in Seoul, South Korea.
Yoon & Yang's Antitrust & Competition Practice Group Expands with the Hire of Hee Jae Lee
Leading full-service law firm Yoon & Yang is further strengthening its Antitrust & Competition practice with the hire of a former director of the Korea Fair Trade Commission. Yoon & Yang has hired Hee Jae Lee as a partner in the firm’s antitrust & competition practice group.
Yoon & Yang Continues to Bolster Cross-border Capabilities with Another Hire of Senior Foreign Attor
Yoon & Yang continues to strengthen its cross-border capabilities with the hire of two Senior Foreign Attorneys from Lee & Ko and Samsung Electronics. Yoon & Yang announced that Elayne Heeseung Sung and Irene Y. Kim have joined the firm’s Seoul office as Senior Foreign Attorneys.
Yoon & Yang Promotes Six Promising Lawyers to Partnership
Yoon & Yang LLC, a top tier law firm in Korea, promoted six young and promising lawyers to partnership last month. The newly minted partners are Dong Hee Kang, Yoon Sun Kim, Seong-joong Kim, Sung Bin Jhung, Yuntae Kim, and Young Chang Lee.
Yoon & Yang Hires Three Senior Foreign Attorneys to Strengthen Cross-border Capacity
Yoon & Yang LLC has hired three Senior Foreign Attorneys, Jason W. Lee (U.S.-qualified), Song Feng Hong (China-qualified) and Sung Jin Ro (U.S.-qualified), in anticipation of further strengthening the firm’s cross-border capacity.
Yoon & Yang hires former Lee & Ko partner to strengthen its aviation workforce
Yoon & Yang hires former Lee & Ko partner to strengthen its aviation workforce
Former FSC Chairman joins Yoon & Yang
Yoon & Yang LLC is further expanding its banking & finance and financial regulation practices with Mr. JongKu Choi, a former Chairman of the Financial Services Commission (FSC), joining the firm. In October 2022, Yoon & Yang welcomed the former government official, who brings approximately 40 years
An Overview of the Metaverse and its Legal Implications in South Korea
An overview of the industry and policy trends concerning the metaverse and legal issues
Yoon & Yang Advises Doosan Heavy Industries & Construction on its Investment in U.S. NuScale Power
South Korean law firm Yoon & Yang LLC advised Doosan Heavy Industries & Construction (DHIC) in aggregating and implementing investment of USD 60 million in NuScale Power, a nuclear power plant manufacturer in the U.S..
KFTC's Amended Cartel Leniency Guidelines
The Korea Fair Trade Commission (“KFTC”) has started enforcement of the amended Cartel Leniency Guidelines (Guidelines”) on June 10, 2021.
Yoon & Yang Hires Former Presiding Judges and Chief Prosecutor
Yoon & Yang LLC’s strive for excellence in litigation and criminal defense has recently passed another mark with the recruitment of two former presiding judges and one former chief prosecutor as the firm’s new partners.
Enhanced Penalties under Environmental Laws in South Korea
Recent amendments to environmental laws and regulations in South Korea have strengthened penalties for violations, particularly expanding the scope and application of administrative fines.
Implementation of the World’s First “Hydrogen Law” Expected to Accelerate the Hydrogen Economy
The Hydrogen Economy Promotion and Hydrogen Safety Management Act (“Hydrogen Act”), the world’s first hydrogen law, took effect on February 5, 2021.
Establishment of K-RE100 and Implementation of Support Systems
The amendment to the Regulation on the Support of New and Renewable Energy Facilities (“Regulation”) announced by the Ministry of Trade, Industry, and Energy of Korea (“MOTIE”) became effective on January 1, 2021.
Yoon & Yang Bolsters Capabilities in TMT Sector
Yoon & Yang LLC has announced recent hires of Jaebum Seok and Sugyoung Yi to further reinforce its capabilities in advising its clients on regulatory issues as well as government policies in relation to the TMT sector.
South Korea’s National Assembly Passed the Bill on Punishment for Serious Accidents
South Korea’s National Assembly Passed the Bill on Punishment for Serious Accidents.
Korean Competition Law to Undergo Complete Overhaul
The amendment bill to comprehensively overhaul the Monopoly Regulation and Fair Trade Act (“MRFTA”) was passed by the National Assembly on December 9, 2020 and will become effective in December of 2021.
Yoon & Yang's Hoil Yoon Honored with Prestigious GCR Lifetime Achievement Award
Yoon & Yang’s managing partner, Hoil Yoon, has received the prestigious “Lifetime Achievement Award” from Global Competition Review (GCR) at the GCR Awards Ceremony 2020 which was virtually held on November 10, 2020.
South Korean Government Seeks to Expand Class Actions and Punitive Damages to All Areas of Law
On September 28, 2020, the Ministry of Justice announced new bills ① proposing the enactment of the Class Action Act that will expand the availability of South Korea’s existing class action suits to all industries concerning any area of law, and ② the amendment of the Commercial Code.
Yoon & Yang Hires Three Foreign Attorneys to Reinforce Global Capabilities in its M&A Practice
Yoon & Yang LLC announced the recent hires of three foreign attorneys, Seung-Kook Synn, Sung Uk Park, and S. Janet Lee to reinforce its global capabilities in M&A practice.
Yoon & Yang Hires Three Former Judges to Further Strengthen Litigation Practice
Yoon & Yang LLC has recently bolstered its litigation practice by recruiting three former judges as partners: Oh Young Lee, Jeong Dae Park, and Dong Bok Park.
Yoon & Yang Scores a Team Hire for Its International Tax Practice
Yoon & Yang, one of the big-six law firms in Korea, has doubled down on its international practice. The firm is being hailed for its “game changing hires” for its international tax practice with the recruitment of three leading figures from a competing law firm – Messrs. Jay Shim, Sung Hyun Ryu, and
Yoon & Yang Hires Seasoned M&A lawyer Hee Woong Yoon as Managing Partner
Yoon & Yang LLC announced that it has hired mergers and acquisitions heavyweight Hee Woong Yoon as a new Managing Partner and the Head of the firm’s newly established Future Strategy Planning Task Force.
Yoon & Yang Strengthens Antitrust & Competition Practice Group with Addition of Former KFTC Official
Yoon & Yang LLC has bolstered its Antitrust & Competition practice by welcoming former KFTC deputy director Chiyeol Kim as a partner.
Yoon & Yang Hires Adrian Bae, Ex-BAT North Asia VP, as Senior Foreign Attorney
Yoon & Yang LLC (“Yoon & Yang”) has recruited Adrian Bae, former Vice President of North Asia at British American Tobacco (BAT), the world’s largest tobacco company, as a Senior Foreign Attorney.
Yoon & Yang Announces New Leadership Appointing Senior Managing Partner Myung Soo Lee
Yoon & Yang LLC (“Yoon & Yang”) announces a leadership change, effective on January 1, 2024.
International Construction and Arbitration Expert Joins Yoon & Yang
Leading international construction and arbitration expert Joseph Lee joins Yoon & Yang’s head office in Seoul, South Korea.
Yoon & Yang's Antitrust & Competition Practice Group Expands with the Hire of Hee Jae Lee
Leading full-service law firm Yoon & Yang is further strengthening its Antitrust & Competition practice with the hire of a former director of the Korea Fair Trade Commission. Yoon & Yang has hired Hee Jae Lee as a partner in the firm’s antitrust & competition practice group.
Yoon & Yang Continues to Bolster Cross-border Capabilities with Another Hire of Senior Foreign Attor
Yoon & Yang continues to strengthen its cross-border capabilities with the hire of two Senior Foreign Attorneys from Lee & Ko and Samsung Electronics. Yoon & Yang announced that Elayne Heeseung Sung and Irene Y. Kim have joined the firm’s Seoul office as Senior Foreign Attorneys.
Yoon & Yang Promotes Six Promising Lawyers to Partnership
Yoon & Yang LLC, a top tier law firm in Korea, promoted six young and promising lawyers to partnership last month. The newly minted partners are Dong Hee Kang, Yoon Sun Kim, Seong-joong Kim, Sung Bin Jhung, Yuntae Kim, and Young Chang Lee.
Yoon & Yang Hires Three Senior Foreign Attorneys to Strengthen Cross-border Capacity
Yoon & Yang LLC has hired three Senior Foreign Attorneys, Jason W. Lee (U.S.-qualified), Song Feng Hong (China-qualified) and Sung Jin Ro (U.S.-qualified), in anticipation of further strengthening the firm’s cross-border capacity.
Yoon & Yang hires former Lee & Ko partner to strengthen its aviation workforce
Yoon & Yang hires former Lee & Ko partner to strengthen its aviation workforce
Former FSC Chairman joins Yoon & Yang
Yoon & Yang LLC is further expanding its banking & finance and financial regulation practices with Mr. JongKu Choi, a former Chairman of the Financial Services Commission (FSC), joining the firm. In October 2022, Yoon & Yang welcomed the former government official, who brings approximately 40 years
An Overview of the Metaverse and its Legal Implications in South Korea
An overview of the industry and policy trends concerning the metaverse and legal issues
Yoon & Yang Advises Doosan Heavy Industries & Construction on its Investment in U.S. NuScale Power
South Korean law firm Yoon & Yang LLC advised Doosan Heavy Industries & Construction (DHIC) in aggregating and implementing investment of USD 60 million in NuScale Power, a nuclear power plant manufacturer in the U.S..
KFTC's Amended Cartel Leniency Guidelines
The Korea Fair Trade Commission (“KFTC”) has started enforcement of the amended Cartel Leniency Guidelines (Guidelines”) on June 10, 2021.
Yoon & Yang Hires Former Presiding Judges and Chief Prosecutor
Yoon & Yang LLC’s strive for excellence in litigation and criminal defense has recently passed another mark with the recruitment of two former presiding judges and one former chief prosecutor as the firm’s new partners.
Enhanced Penalties under Environmental Laws in South Korea
Recent amendments to environmental laws and regulations in South Korea have strengthened penalties for violations, particularly expanding the scope and application of administrative fines.
Implementation of the World’s First “Hydrogen Law” Expected to Accelerate the Hydrogen Economy
The Hydrogen Economy Promotion and Hydrogen Safety Management Act (“Hydrogen Act”), the world’s first hydrogen law, took effect on February 5, 2021.
Establishment of K-RE100 and Implementation of Support Systems
The amendment to the Regulation on the Support of New and Renewable Energy Facilities (“Regulation”) announced by the Ministry of Trade, Industry, and Energy of Korea (“MOTIE”) became effective on January 1, 2021.
Yoon & Yang Bolsters Capabilities in TMT Sector
Yoon & Yang LLC has announced recent hires of Jaebum Seok and Sugyoung Yi to further reinforce its capabilities in advising its clients on regulatory issues as well as government policies in relation to the TMT sector.
South Korea’s National Assembly Passed the Bill on Punishment for Serious Accidents
South Korea’s National Assembly Passed the Bill on Punishment for Serious Accidents.
Korean Competition Law to Undergo Complete Overhaul
The amendment bill to comprehensively overhaul the Monopoly Regulation and Fair Trade Act (“MRFTA”) was passed by the National Assembly on December 9, 2020 and will become effective in December of 2021.
Yoon & Yang's Hoil Yoon Honored with Prestigious GCR Lifetime Achievement Award
Yoon & Yang’s managing partner, Hoil Yoon, has received the prestigious “Lifetime Achievement Award” from Global Competition Review (GCR) at the GCR Awards Ceremony 2020 which was virtually held on November 10, 2020.
South Korean Government Seeks to Expand Class Actions and Punitive Damages to All Areas of Law
On September 28, 2020, the Ministry of Justice announced new bills ① proposing the enactment of the Class Action Act that will expand the availability of South Korea’s existing class action suits to all industries concerning any area of law, and ② the amendment of the Commercial Code.
Yoon & Yang Hires Three Foreign Attorneys to Reinforce Global Capabilities in its M&A Practice
Yoon & Yang LLC announced the recent hires of three foreign attorneys, Seung-Kook Synn, Sung Uk Park, and S. Janet Lee to reinforce its global capabilities in M&A practice.