Tax Disputes
South Korea
06 October 2025
Yoon & Yang LLC’s broad capital markets experience covers IPOs, bonds (including samurai and hybrid bonds), and securities, among other areas, as well as regulatory work. Sang-Hyun Ahn and Hwan Jun Heo lead the team alongside Sung Woon Kang, who specialises in public and private securities offerings, both in Korea and abroad. Sung Bin Jhung is well known for advising on NASDAS, KOSPI, and KOSDAQ listings as well as for defending clients against delistings.
Legal 500 Editorial commentary
Accolades
Client satisfaction
Key clients
- Captivision Inc.
- Korea Investment & Securities Co., Ltd.
- NH INVESTMENT & SECURITIES CO.,LTD.
- HANWHA INVESTMENT&SECURITIES CO.,LTD
- SAMSUNG SECURITIES CO.,LTD
- THe Export-Import Bank of Korea
- OSSTEMIMPLANT.CO.,Ltd
- HEESUNG CHEMICAL LTD.
Work highlights
Successfully advised on the cross-jurisdictional business combination of Jaguar Global Growth Corporation I and GLAAM Co., Ltd., culminating in the NASDAQ listing of Captivision Inc.
Providing legal counsel to OASIS Corporation in its historic bid to become the first early-morning delivery company listed on the KOSPI, with advice encompassing IPO procedures, due diligence, and regulatory compliance.
Advising PDC*line Pharma, a Belgian biotech firm seeking to become the first European company listed on the Korean securities market.
Practice head
Sang-Hyun Ahn; Hwan Jun Heo; Sung Woon Kang
Other key lawyers
Sung Bin Jhung