David MacArthur is Co-head of the International Dispute Resolution practice at Yulchon. A US-qualified attorney, admitted in Utah in 2003, Mr. MacArthur previously developed and led the international arbitration practice at Anderson Mori & Tomotsune, in Tokyo, Japan, from 2021 to 2023, before joining Yulchon. In addition, he was a leading member of Bae, Kim & Lee LLC’s international arbitration practice for almost 15 years, during which the team was ranked in the GAR100 or GAR30 every year. He has represented clients in arbitrations involving a wide range of industries, including automotive, construction, IP, medical devices, online gaming, pharmaceutical and life sciences, real estate, shipbuilding, telecommunications, and other sectors, in disputes based in jurisdictions around the world and under most major arbitration rules prior to joining Yulchon. He also acts as arbitrator, and has been certified as a Fellow of the Chartered Institute of Arbitrators (FCIArb), with experience under the ICC, SIAC, HKIAC, JCAA, KCAB and other rules.

Yong Whan Choi is the Co-Head of Yulchon’s International Tax Team and a Partner of the Japan Team. Mr. Choi obtained his LL.M. specializing in International Tax Studies from New York University and his Ph.D. from Yonsei University. Having also worked at a Japanese law firm while on secondment, Mr. Choi has extensive experience in advising multinational corporations on their tax issues in the U.S. and Japan. In particular, Mr. Choi has successfully advised numerous multinational corporations in not only the traditional industries such as the semiconductor, automobile and chemical industries, but also the platform and ICT industries (e.g., cloud, e-commerce), in relation to transfer pricing, permanent establishment, beneficial ownership, withholding tax, and restructuring issues, and also successfully represented these corporations before the Tax Tribunal and the Korean courts. In addition, Mr. Choi has advised various foreign investment funds and domestic corporations in cross-border transactions and further represented them before the Tax Tribunal and the Korean courts. As a member of Yulchon’s Japan Team, Mr. Choi has advised both Japanese and Korean corporations in the semiconductor, automobile and platform industries with regard to their inbound and outbound transactions.

Tehyok Daniel Yi is a foreign attorney at Yulchon LLC in the corporate and finance practice. Mr. Yi’s practice focuses on mergers and acquisitions, joint ventures, corporate governance, finance, projects, insurance and mobility, and he has extensive experience in representing corporations, private equity funds and financial institutions in a broad range of cross-border transactions and matters. Prior to joining Yulchon LLC in 2008, Mr. Yi worked at Orrick, Herrington & Sutcliffe LLP in its Tokyo office. He received his J.D. from Harvard Law School in 1999 and B.A. in economics and international area studies from University of California, Los Angeles in 1996. He is admitted to practice law in New York.

Keon Woong Kim is a partner at Yulchon who practices primarily in the areas of Antitrust, Corporate Governance, Mergers & Acquisitions, and TMT.

Kyu Dong Kim is a Senior C.P.A. at Yulchon who primarily focuses on international tax matters. He is a senior tax partner and serves as a co-leader of Yulchon’s international tax practice. Before joining Yulchon, Mr. Kim worked at Samil PricewaterhouseCoopers from 2000 to 2005, PricewaterhouseCoopers LLP London as a senior manager from 2005 to 2008, and Samil PricewaterhouseCoopers as a director from 2008 to 2011. He has built up extensive knowledge and experience dealing with the challenging tax issues of multi-national corporations’ cross border transactions and their Korean operations, in particular foreign information, communication, technology companies and financial services companies. Also, he has specialized in structuring overseas funds investing in Korea and Korean companies investing overseas. He is a director of the Korean branch of International Fiscal Association and serves as a member (tax advisor) of the two investment committees of National Pension Fund.

Sun Hee Kim is a partner at Yulchon who focuses her practice on data protection, e-commerce, ICT and Fintech. She also has extensive experience in cross-border M&As. Sun Hee’s data protection practice includes advising clients on cross-border data transfers, data management strategies, responding to data breach incidents, data protection trainings, and data related compliance projects, litigations, and investigations. Sun Hee also advises on data protection issues in the context of M&A transactions, such as conducting due diligence on the target companies, and assisting with post-merger integrations. Sun Hee also actively advises both domestic and global companies in the e-commerce, ICT and Fintech sectors, on their launching and expanding their businesses in Korea. Sun Hee is actively involved in the International Bar Association as an Officer of IBA’s Asia Pacific Regional Forum, and regularly speaks at various conferences and seminars on ICT and data privacy issues. Sun Hee is also the Co-Chair of AMCHAM’s ICT Committee.

Jungwoo Lee is a partner at Yulchon LLC who practices primarily in the areas of Corporate & Finance and Labor & Employment. His practice area focuses on advisory services including labor relations strategy, personnel management, regulatory compliance (including internal investigations) and litigation services pertaining to employment-related matters. In particular, Mr. Lee’s experiences of living abroad, being seconded to a Japanese law firm and obtaining a U.S. CPA license has facilitated his deep understanding of differences in corporate cultures, which has allowed him to be an effective counselor to various multinational corporate clients. Mr. Lee graduated from Seoul National University College of Law in 2005 and completed his judicial training with the 37th class of the Judicial Research and Training Institute of the Supreme Court in 2008.