Ranked in 1 Practice Areas
3

Band 3

International Trade

South Korea

1 Years Ranked

Ranked in Guides

About

Provided by Jeongju Jahng

Global

Practice Areas

Customs ∙ International Trade

Foreign Investment

FTA ∙ Trade Advisory

Information Security Center

Compliance

ESG Center

Intellectual Property

International Arbitration ∙ Litigation

Administrative Disputes

Constitutional Litigation

Europe

GRC Center

Career

2018-present Yoon & Yang LLC

2018 Deputy Director, Trade Dispute Settlement Division, Ministry of Trade, Industry and Energy

2016-18 Deputy Director, Trade Dispute Settlement Division, Ministry of Trade, Industry and Energy

2015-16 Deputy Director, FTA Goods Division, Ministry of Trade, Industry and Energy

2013-15 Deputy Director, Trade Dispute Settlement Division, Ministry of Trade, Industry and Energy

2012-13 Deputy Director, Trade Distpute Settlement Division, Ministry of Foreign Affairs and Trade

2011-12 Deputy Director, Overseas Voting Team, Ministry of Foreign Affairs and Trade

2008-11 Deputy Director, International Legal Affairs Division, Ministry of Foreign Affairs and Trade

2007-08 Deputy Director, FTA Trade Rules Division, Ministry of Foreign Affairs and Trade

Professional Memberships

Admitted to bar, Korea (2007)

Publications

Korea Chapter, The International Trade Law Review, Law Business Research (Co-author, 2022-2023)

Work Highlights

[Response to government regulations of major countries]

Advised on US laws (Inflation Reduction Act (IRA), CHIPS Act and Uyghur Forced Labor Prevention Act) and EU laws & regulations (Foreign Subsidies Regulation, Carbon Border Adjustment Mechanism (CBAM), Supply Chain Due Diligence Act, Critical Raw Materials Act, Eco Design Regulations, Packaging Waste Directive, and Amended Rules for Waste Shipment)

Represented a Brazilian company in the Korea Trade Commission’s anti-dumping investigation of Indonesian/Brazilian-made uncoated paper

[Free Trade Agreement (FTA)]

Represented the Korean government in the investor-state dispute settlement (ISDS) that a US citizen filed related to land expropriation based on the Korea-US FTA

Advised on various matters related to FTA negotiations (i.e., amendment of Korea-US FTA and RCEP) and previously executed FTAs by Korea

[World Trade Organization (WTO) Conventions]

Advised on various WTO conventions, such as GATT, Anti-dumping Agreement, Subsidy Agreement, and Government Procurement Agreement

Advised on case involving US anti-dumping measure against Korean-made oil well steel pipes

Advised on case involving US anti-dumping and countervailing duties against Korean-made washing machines

Advised on case involving US technical barriers to trade of tuna products from Mexico

Advised on case involving US technical barriers to trade of beef from Canada and Mexico

Advised on case involving US import regulation of Indonesian-made cigarette products

Languages Spoken

Korean and English

Education

Judicial Training & Research Institute

2007

Korea University, B.A. in Spanish Language and Literature (Minor: Law)

B.A.

2001

Awards

Leading Individual, International Trade

Chambers and Partners Asia-Pacific

2025

Leading Individual, International Trade

Chambers and Partners Asia-Pacific

2026

Chambers Review

Provided by Chambers

Chambers Global Guide

International Trade - South Korea

3
Band 3
Individual Editorial

Jahng Jeongju draws on his former experience as a trade policy official to advise clients on a range of trade issues, including administrative reviews, sanctions and export control issues, WTO matters and digital trade agreements.

Contributions

Latest contributions provided by Jeongju Jahng

Global Practice Guide
Jeongju Jahng
Yunkyung Park
Dongwon Jung
Hyejin Woo
Authored by
Jeongju Jahng, Yunkyung Park, Dongwon Jung, Hyejin Woo
Article • Dec 2025

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