Image: John Tso

John Tso

Associate, Litigation Department
Hong Kong
22/F Bank of China Tower
1 Garden Road
Central Hong Kong SAR, China

Fax: (852) 2526 2119


John Tso is an Associate in the Litigation department of Paul Hastings.

Mr. Tso advises clients with respect to applicable anti-corruption laws and other compliance areas. He has extensive experience in conducting in-depth corporate internal investigations, designing, enhancing, and implementing comprehensive compliance programs and procedures, and delivering compliance trainings. He also supports the corporate practice by leading compliance due diligence and reviews for complex cross-border transactions. He has advised multinational companies spanning across the pharmaceutical, technology, real estate, finance, apparel, transportation, media, and food and beverage industries on compliance matters in Asia, Europe, Africa, and other regions. His clients also include international non-governmental organizations.

Mr. Tso also maintains an arbitration practice that focuses on complex international disputes. He represents Chinese and foreign clients in HKIAC and CIETAC proceedings concerning disputes arising from project development, mergers and acquisitions, TV program licensing, and other cross-border transactions.

Mr. Tso is a Registered Foreign Lawyer (New York) in Hong Kong. He also passed the PRC bar exam but does not currently hold a PRC practicing certificate. He speaks Cantonese, Mandarin, and English.


  • Harvard Law School, LL.M., 2018 (Vice-president, Harvard China Law Association)

  • Tsinghua University School of Law, LL.M., 2013

  • Tsinghua University School of Law, LL.B., 2009

Speaking Engagements

  • "China Enacts New Export Control Law - Global Businesses Take Heed" (co-author), Paul Hastings client alert (2020), republished by Lexology

  • "China Enacts Regulations on Unreliable Entity List" (co-author), Paul Hastings client alert (2020)

  • "The Case for Preserving South Korea's Crackdown on Gifts," The Global Anticorruption Blog (2018)

  • "What Happened to Hong Kong?" The Global Anticorruption Blog (2018)

  • "It's Time for China to Show Its Foreign Bribery Law is Not a Paper Tiger," The Global Anticorruption Blog (2018)

  • "China's New Cybersecurity Regime" (co-author), Paul Hastings client alert (2017), republished by Lexology

  • "China Tightens Controls over Foreign NGOs with New Law" (co-author), Paul Hastings client alert (2016), republished by Lexology

  • "Confronting FCPA and Anti-Corruption Risk in China M&A Deals" (co-author), Paul Hastings client alert (2014), republished by Lexology

  • "Ad Hoc International Criminal Tribunals Activities in 2012" (co-author), Chinese Yearbook of International Law (2012)

  • "The Burden of Proof under the WTO Dispute Settlement Mechanism" (co-author), WTO Law and China Symposium (2011)


  • Co-founded and acting as a director of the Chinese Initiative on International Law, an NGO.

Recent Representations

  • Conducting internal investigations for multiple leading pharmaceutical companies into alleged fraud and improper payments concerning the sales force, academic departments, marketing departments, and third-party service providers in China.

  • Conducting internal investigations for multiple leading technology companies into alleged channel stuffing and other sales fraud concerning the greater China region.

  • Representing a U.S. company before the U.S. DOJ and SEC in connection with an FCPA investigation.

  • Acting as the compliance officer and overseeing all compliance matters in a U.S. funded real estate company in China.

  • Representing a European company before the U.S. DOJ with respect to allegations of bribery and export control violations as part of a global corruption investigation involving UK and French criminal enforcement authorities.

  • Designed compliance program and procedures, conducted trainings, and providing general compliance advice for Chinese companies.

  • Conducting anti-corruption risk assessments for U.S. and Chinese companies to identify gaps in anti-corruption compliance programs and appropriate enhancements to minimize future risk.

  • Conducting third-party and transactional compliance due diligence for numerous private equity funds, financial institutions, and companies.

  • Representing a U.S. investment fund in its contract disputes with a Chinese company before the HKIAC and CIETAC.

  • Representing a Chinese company in disputes arising from the acquisition of a company from a U.S. company before the HKIAC.

Practice Areas

Financial Services
Anti-corruption and FCPA
Life Sciences and Healthcare


Chinese (Cantonese)
Chinese (Mandarin)


Hong Kong Registered Foreign Lawyer (USA)
New York Bar


Harvard Law School, LL.M. 2018
Tsinghua University School of Law, LL.M. 2013
Tsinghua University School of Law, LL.B. 2009

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