Praised by its diverse client base for its ‘strategic framing, persuasive advocacy and practical insight’, Yoon & Yang LLC has continued to expand its international tax practice with the hires of Jay Shim, Sang Hyun Ryu and Hoanku Lee from Lee & Ko. Wankyu Jeon oversees the department and receives a varied stream of work spanning international taxation to income tax matters. On the tax advisory and strategy front, Oh-Young Jeon is a name to note, as is Yong Taek Kim for tax litigation. Jong Hwa Jung adds additional tax litigation capabilities to the group, while Young Woong Park leads on tax audits and tax planning strategies.
Legal 500 Editorial commentary
Accolades
Client satisfaction: Billing & efficiency
Client satisfaction: Sector knowledge
Testimonials
Collated independently by Legal 500 research team.
‘The team’s strength lies in its deep understanding of tax law. Compared to other firms, Yoon & Yang stood out for its strategic framing, persuasive advocacy, and practical insight, ultimately securing a complete win before the Tax Tribunal. Their ability to turn legal complexity into clear, favourable outcomes makes them a highly reliable partner.’
‘Mr. Yong Taek Kim stands out for his sharp legal insight and exceptional command of tax and administrative law. What sets him apart is his ability to analyse both the legal and practical dimensions of a case, crafting arguments that are not only technically sound but also strategically persuasive.’
‘Mr. Yong Taek Kim's clear communication, deep understanding of regulatory frameworks, and calm yet decisive advocacy before the Tax Tribunal were instrumental in achieving a full victory. His professionalism, precision, and client-focused approach make him truly outstanding among his peers.’
Key clients
- Paradise Segasammy Co., Ltd.
- British American Tobacco Korea
- Hyundai Engineering & Construction Co., Ltd
- Daewoo Engineering & Construction Co., Ltd
- IGIS Asset Management
- Hyundai Rotem
- Olympus Korea
- Shinhan Life
- Samsung Electronics Service
- SK geo centric
- Hyundai Engineering Co., Ltd.
- Korea Railroad Corp.
Work highlights
Successfully challenged a KRW 8 billion tax assessment on behalf of a luxury hotel chain regarding acquisition and property tax exemptions for a hotel complex in Yeongjong-do.
Successfully represented BAT Korea Manufacturing in challenging a KRW 50 billion tax assessment related to the timing of tobacco product clearance before a 2015 tax hike.
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Next Generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.
Practice head
Wankyu Jeon
Other key lawyers
Jay Shim; Sang Hyun Ryu; Hoanku Lee; Oh-Young Jeon; Yong Taek Kim; Jong Hwa Jung; Young Woong Park