Sang Oh Jeon

Practice Areas

Antitrust & Competition

Cartel

Merger Filings

Unfair Affiliate Transactions

Subcontracting

Distribution

Antitrust & Competition Compliance

Antitrust & Competition Litigation

Career

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.

Professional Memberships

Admitted to bar, Korea (2008)

Publications

[Books]

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

[Academic Papers]

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)

Work Highlights

[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

Languages Spoken

Korean and English

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)

2013-15: Lecture, Maeil Economy Education Center (Lage Retail Business Act, Franchise Business Act)

2012-present: Lecturer, Fair Competition Federation (Fair Trade Act, Subcontracting Act, Large Retail Business Act)

2005-08: Public Attorney, Ministry of Justice

Clients

Hyuhdai Motor Company, Kia Corporation, Samsung GCNT, Samsung SDI, Samsung SDS, SK Innovation, SK GC, Hanhwa System, Hanwha Aerospace, Hanwha Ocean, GS Retail, GS, DL E&C, Daiso, Korean Air, Kakao Mobility

Education

Awards