Ou Yingshi is a Partner at Longan Law Firm (Guangzhou). Her practice areas primarily focus on international business, maritime and admiralty, sanctions and export control, anti-dumping and countervailing, international arbitration, and cross-border litigation.

Professional Qualifications

PRC Bar Qualification

Educational Background

Bachelor of Laws, Guangdong University of Foreign Studies
Master of Laws, City University of Hong Kong
Master of Laws, Université Paris 1 Panthéon-Sorbonne

Work Experience

2018-2025: Guangdong Guangyue Law Firm (Attorney)
2025-Present: Longan Law Firm (Guangzhou) (Partner)

Social Positions:

Member, Low-Altitude Economy Legal Professional Committee of the Guangdong Lawyers Association
Member, Guangzhou International Commercial Legal Service Center of the Guangzhou Lawyers Association

Selected Honors:

Leading Foreign-Related Legal Talent of Guangzhou
Rising Foreign-Related Legal Talent of Guangdong Province
First Batch of Selected Attorneys in the “Lingyun Plan” for Outstanding Young Lawyers in Guangzhou
Awarded “Award of Excellence” in August 2021 in the essay solicitation activity “Safeguarding Chinese Overseas Interests, Guangzhou Lawyers in Action” organized by the Guangzhou Lawyers Association
Awarded “Business Achievement Award” in June 2022 by the Guangzhou Lawyers Association
Led the project “Non-Litigation Special Legal Services for the Construction Project of the Domestic Management Headquarters Building of a Macao Bank’s Guangzhou Branch,” which was recognized as an Outstanding Legal Service Case of the Guangdong-Hong Kong-Macao Greater Bay Area (2019-2022) in March 2023
Served as a key contributor to “Legal Services for Financial Derivatives Transactions (Illustrated by ISDA and NAFMII Agreements),” which won the Gold Medal Recommended Product Award in March 2023
Served as a key contributor to “Full-Process Legal Services for Cross-Border Data Transfer,” which won the Highly Recommended Product Award in March 2023
“Compliance Legal Services for Cross-Border Data Flow” selected as an Outstanding Service Product for the Development of New Quality Productive Forces in Guangdong Province
“Full-Process Legal Services for the Going-Global of New Energy Vehicle Industry” and “Shipping Data Asset Management Legal Services” won Second and Third Prizes respectively in the First Guangdong Lawyers Legal Service Competition
First Prize in the 2025 “Longan Cup” National AI Legal Agent Competition

Representative Cases

I. Export Control, Economic Sanctions, and Trade Remedies

1. Provided legal services to a well-known automobile enterprise regarding its car export business and related export compliance matters in ASEAN countries, including Thailand, Vietnam, Myanmar, and Cambodia.
2. Issued legal opinions and formulated systematic risk-response proposals for a large state-owned enterprise regarding whether its investment project in Russia involved U.S. economic sanctions and export control risks.
3. Provided special legal opinions for a large new energy enterprise regarding U.S. export control and economic sanctions risks involved in its investment project in Syria.
4. Issued legal opinions and developed compliance response plans for a large state-owned enterprise regarding whether its investment project in Russia involved UK sanctions and export control risks.
5. Issued legal opinions and provided targeted compliance suggestions for a large state-owned enterprise regarding whether its investment project in Russia involved EU sanctions and export control risks.
6. Provided special legal services to a leading enterprise applying for removal from the U.S. Specially Designated Nationals and Blocked Persons List (SDN List).
7. Provided legal support for an enterprise applying to the U.S. Department of the Treasury’s Office of Foreign Assets Control (OFAC) for a license to unblock frozen funds.

II. Outbound Direct Investment (ODI) and Overseas Business Layout

1. Provided full-process legal services, including investment structure design, project establishment, and implementation, for a leading new energy vehicle enterprise’s factory-building project in Thailand.
2. Provided full-process legal support for a leading new energy vehicle enterprise regarding the establishment of an operating entity and equity changes in Thailand.
3. Provided full-process legal services for a large general automobile enterprise’s investment project in Russia.
4. Provided full-process legal consultation and transaction support for a large automobile trading enterprise’s investment project in Mexico.
5. Provided full-process legal services for a large automobile trading enterprise’s investment project in Thailand.
6. Provided full-process legal services for a domestic new energy battery enterprise’s investment project in Thailand.
7. Provided full-process legal services for a large photovoltaic enterprise’s investment project in Syria.
8. Provided full-process legal support for a unicorn enterprise’s outbound investments across multiple countries in Europe, the Americas, and Southeast Asia.
9. Provided full-process legal services for a photovoltaic enterprise’s power station construction project in Thailand.

III. Cross-Border Data Transfer and Data Compliance

1. Provided special legal services regarding cross-border data transfer and data compliance issues involved in a leading new energy vehicle enterprise’s investment project in Thailand.
2. Provided legal support regarding cross-border data transfer issues involved in a large automobile trading enterprise’s investment project in Mexico.
3. Provided legal services regarding cross-border data transfer issues involved in a domestic new energy battery enterprise’s investment project in Thailand.
4. Provided special legal services for a leading new energy vehicle enterprise to establish a global outbound data compliance system, covering 38 countries or regions, including the EU, Eurasian Economic Union, Hong Kong, Macao, Taiwan, Southeast Asia, the Middle East, South Asia, Australia, Africa (including South Africa and Zambia), Latin America, and North America.
5. Provided legal services regarding cross-border data transfer and data compliance issues involved in a large general automobile enterprise’s investment project in Russia.

Practice Experience

Ou Yingshi possesses solid expertise and practical experience in foreign-related legal services. She provides comprehensive legal assistance to large enterprises, particularly in manufacturing, artificial intelligence, and low-altitude economy sectors. Her service areas include outbound direct investment, export control and economic sanctions, anti-dumping and countervailing, international arbitration, foreign-related litigation, and long-term foreign-related corporate legal counsel. Her professional, rigorous, and commercially-minded approach has earned broad client recognition.

Attorney Ou has been deeply involved in and led outbound investment projects for several well-known manufacturing companies, covering countries and regions such as Thailand, Mexico, Russia, and Singapore. She offers end-to-end legal support, spanning investment structure design, transaction document review, host country legal analysis, regulatory compliance, risk prevention, and project implementation. As the lead attorney, she has also provided legal services to a prominent automobile company for its vehicle export business in ASEAN countries, including Thailand, Vietnam, Myanmar, and Cambodia. In this role, she assisted the client in navigating complex issues such as cross-border transactions, market entry, regulatory compliance, and commercial risks, providing legal support for the enterprise’s overseas expansion.

In dispute resolution, Attorney Ou focuses on foreign-related litigation and international arbitration. She has acted as lead counsel in numerous foreign-related litigations and international arbitrations, designing and executing systematic dispute resolution strategies around critical stages such as jurisdiction, evidence organization, substantive legal argumentation, and procedural advancement to protect clients’ legitimate interests.

Currently, Attorney Ou has established long-term and stable cooperative relationships with international law firms and professional agencies specializing in outbound businesses. Her service network spans more than 30 countries and regions across Hong Kong, Macao, Taiwan, Southeast Asia, the Middle East, Central Asia, Europe, South Asia, Australia, Africa, Latin America, and North America. Her clients operate in strategic emerging and high-end manufacturing industries, including intelligent connected vehicles, new energy, artificial intelligence, UAVs (drones), traditional manufacturing, and biopharmaceuticals, enabling her to deliver integrated, international, and full-process legal support for enterprises’ global positioning, cross-border investment, and international operations.

Ou Yingshi