Yoon & Yang LLC offers a diverse range of services, from traditional regulatory and advisory work to rapidly evolving areas of emerging technology. The firm operates specialised centres dedicated to industry-specific issues, such as information security, environmental regulation, technology regulation and AI. Kwang-Wook Lee, head of the practice, is renowned for his expertise in cutting-edge technologies such as AI, fintech, smart cars, and big data. He often represents innovative companies at the forefront of technological advancement. Keun Woo Lee, vice chair of the new technology group, specialises in privacy protection, trade secrets, and IP. Sugyoung Yi leverages her government experience to provide strategic advice on broadcasting and communications matters.
Legal 500 Editorial commentary
- Profile
Accolades
Client satisfaction
Testimonials
Collated independently by Legal 500 research team.
‘I have collaborated with quite a number of law firms in Korea. Among those law firms, Yoon & Yang LLC stands out in many ways. Their accuracy, depth and quality of legal services are unrivalled with other law firms in Korea. And for sure, even compared with other international law firms, their expertise stands out.’
‘Yoon & Yang's TMT team, including Keun Woo Lee and Kwang Wook Lee, were always on standby, ready to support us and give help even with scant data. Their abilities lie in that they thoroughly and comprehensively investigate all legal and technical issues in due course and help clients navigate today’s risks.’
'The Yoon & Yang LLC team is well organised and provides excellent legal services to the client.'
'I am always satisfied with their legal advice. They provide reliable legal advice, and their response is always speedy.'
Key clients
- Microsoft Korea
- Apple Inc.
- RADWARE KOREA
- Hermes
- Matches Group
- SK Telecom
- SK Broadband
- NAVER
- SAMSUNG ELECTRONICS
Work highlights
Provides comprehensive legal counsel to Microsoft Korea, focusing on compliance with Korean laws and regulations across diverse areas such as data security, cloud services, and e-commerce, amid evolving government policies and legislative changes.
Serving as external counsel, has guided Google through legal complexities in its cloud operations, ensuring compliance with stringent Korean government regulations. Recently represented Google in submitting an official position to government agencies regarding new laws affecting cloud service providers.
Supported Apple Inc in preparing responses and managing on-site inspections under the Telecommunications Business Act of 2023, aimed at enhancing user protection services. Apple Inc saw significant performance improvements, with notable score increases in evaluations over the past two years.
Lawyers
Next generation partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.
Practice head
Kwang-Wook Lee
Other key lawyers
Keun Woo Lee; Sugyoung Yi