YOON&YANG

Sang Oh Jeon Partner

TEL 82 2 6003 7087
FAX 82 2 6003 7026
E-MAIL sojeon@yoonyang.com

Sang Oh Jeon is a partner at Yoon & Yang LLC, his and main practice area is antitrust & competition.
Mr. Jeon has advised not only major Korean conglomerates such as Samsung, Hyundai Motor, SK, LG, Hanhwa, GS, LS, and Hyundai Department Store but also major multinational corporations such as UBS and Panasonic in responding to the Korea Fair Trade Commission’s investigations regarding various domestic and foreign cartel cases; unfair trade practice cases; violation of the Subcontracting Act; violation of the retail business law; and the franchise business law. In addition, he handles responses to franchise business law investigations, litigations, and consulting for major domestic franchises such as Paris Baguette, Kyochon, BBQ, Mom's Touch, and Puradak.

Experience

2008-present Yoon & Yang LLC
2022-present Outside Director, Hyundai BNG Steel
2021-present Fair Trade Lecturer, Korean Institute of Certified Public Accountants
2021-present Lecturer, Fair Trade Training Institute, Seoul Bar Association (Subcontracting Act)
2021-present Board Member, Gangnam-gu Sports Council
2018-present Non-Government Advisor, International Competition Network
2014-present Legal Advisor and Board Member, Korean Federation of Middle & High School Athletic Associations
2014-present Lecturer, Korea Productivity Center (Fair Trade Act, Subcontracting Act)
2012-present Lecturer, Fair Competition Federation (Fair Trade Act, Subcontracting Act, Large Retail Business Act)
2013-15 Lecture, Maeil Economy Education Center (Lage Retail Business Act, Franchise Business Act)
2005-08 Public Attorney, Ministry of Justice

Education

2014 Yonsei University Graduate School of Business (Franchise Business Coursework completed)
2013 University of Southern California Gould School of Law, LL.M.
2010 Seoul National University School of Law (Fair Trade Law Research Coursework completed)
2010 Hanyang University, Graduate School of Law (International Trade Law Coursework completed)
2005 Judicial Training & Research Institute
2003 Seoul National University, B.A. in Psychology

Representative Matters

[Cartel]

KFTC investigation and administrative litigation on cartel case related to steel scrap purchase
KFTC investigation on an aluminum cartel case involving Hyundai Motor Group
KFTC investigation on a cartel case related to a steelmaker’s rebar sales
KFTC investigation on a cartel case involving Japanese aluminum capacitor manufacturer and distributor
International cartel case involving fuel surcharge
International cartel case involving marine hose
KFTC investigation on an appliances cartel case involving system air conditioner government procurement contract
International cartel case involving the Libor rate
KFTC investigation on cartel case involving the Honam High Speed Railway, the Gyeongin Canal, the Daegu subway, and the Busan subway

[Undue Support & Funneling]

KFTC investigation on providing unfair benefits to related persons by Hanwha group affiliates
KFTC investigation on unfair support for SPC group affiliates
KFTC investigation on unfair support and provision of unfair benefits to related persons by Hanjin group affiliates
KFTC investigation on unfair profit provision to related persons by Taekwang group affiliates
KFTC investigation on unfair support of LS group affiliates
KFTC investigation on unfair support of “E” group affiliates
KFTC investigation on unfair support of “B” group affiliates
KFTC investigation on unfair support of “D” group affiliates
KFTC investigation on unfair support of “H” group affiliates
KFTC investigation on unfair support of “S” group affiliates
Advised major domestic companies on compliance regarding establishing internal trade review committee systems

[Subcontracting Act]

Handled case on the violation of the Act by LG Chem
Handled case on the violation of the Act by Hanwha Systems
Handled case on the violation of the Act by STX Engine
Handled case on the violation of the Act by Dongwon LOEX
Handled case on the violation of the Act by Daewoo Shipbuilding & Marine Engineering
Handled KFTC investigation on a convenience store franchise headquarters
Advised major companies on the request for tender participation restriction

[Fair Transactions in Franchise Business Act]

Investigation and administrative litigation by the KFTC on Genesis BBQ’s violation of the Franchise Business Act
Handled the constitutional appeal case on the Enforcement Decree of the Act (franchise deposit difference)
Provided overall advice and handled litigation on the Act for Paris Baguette, Kyochon, BBQ, Mom’s Touch, and Puradak

[Unfair Trade & Fair Agency Transactions Act]

Handled Korea Fair Trade Commission’s investigation into unfair trade practice of telecom operators and cell phone manufacturers, and handled damages claim cases
Handled damages claim case regarding unfair trade practice of beverage manufacturer “N”
Handled KFTC investigation regarding the Act on shoe importer/manufacturer “A”
Advised affiliates of conglomerates “S” and “E” on compliance with the Act

[Act on Fair Transactions in Large Franchise & Retail Business]

Handled case on the violation of the Act by AsungDaiso Co., Ltd.
Handled case on the violation of the Act by Wemakeprice Inc.
Handled case on the violation of the Act by “H” Department Store
Provided advice to retail companies “H,” “E,” “S,” and “G” on compliance to the Act

[Fair Trade-related Compensation for Damages Litigation]

Litigation for damages related to collusion with elevator manufacturers
Litigation for damages related to collusion with wire manufacturers
Litigation for damages related to the subcontracting law against a logistics company

Awards

Leading Individual, Competition/Antitrust, Chambers and Partners Asia-Pacific (2024-2025)
Client Choice Awards, Competition, Lexology (2024)
Litigation Star, Competition/antitrust, Benchmark Litigation Asia-Pacific (2024)
Best Lawyer, Antitrust & Competition, Korea JoongAng Daily (2024)
Lawyer of the Year, Antitrust & Competition, Legal Times (2020)

Publications

[Books]

Subcontracting Law (practical guide to corporate transactions), Fair Competition Federation (Co-author, 2020)

[Academic Papers]

Korea Chapter, Antitrust Litigation, Chambers Global Practice Guides, Chambers and Partners (Co-author, 2024)
Korea Chapter, Multi-jurisdictional Updates: Competition, Practical Law, Thomson Reuters (Co-author, 2024)
Competition Law in South Korea: Overview, Practical Law, Thomson Reuters (Co-author, 2023)
Korea Chapter, Merger Control, Chambers Global Practice Guides, Chambers and Partners (Co-author, 2023)
Korea Chapter, Mergers, Cases and Precedents, Global Competition Review (co-author, 2021)
Korea Chapter, Cartels, Cases and Precedents, Global Competition Review (Co-author, 2021)
Korea Chapter, Franchise Law Review, Law Business Research (Co-author, 2017-2019)
Korea Chapter, e-Commerce, Getting the Deal Through, Law Business Research (Co-author, 2017-2019)
Korea Chapter, Know how - Immunity, Sanction & Settlements, Global Competition Review (Co-author, 2015-2020)
Applicable Law regarding Tender Cartel and Calculation of Related Sales – Case Study on Economic Law Vol. 9, Economic Law Case Study Association (Co-author, 2015)
Half Price Real Estate Agent’s Commission and Antitrust Law – Competition and Law, Legal Times (2015)