LAWYER PROFILE
John Tan

John Tan

Global 2026

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Ranked in 1 practice area

About

Provided by Arnold & Porter

Practice Areas

John Tan counsels clients on internal and government investigations, privacy and cybersecurity matters, and corporate compliance.

Mr. Tan brings a cross-disciplinary and cross-cultural perspective to his work, drawing on his experience as a trial and appellate lawyer and as in-house investigative counsel. He has advised clients across multiple industries and has particular experience in the life sciences and healthcare, automotive, and energy sectors. Clients describe Mr. Tan as "detailed" and "meticulous," and having "a very in-depth view of the Chinese legal system." His work includes counseling companies on the Foreign Corrupt Practices Act and other anti-corruption regulations, responding to government inquiries, developing compliance programs, and conducting compliance due diligence for corporate transactions. Mr. Tan also advises companies on privacy compliance and the creation of cross-border data strategies and assists companies in conducting data security and cybersecurity reviews.

Mr. Tan previously served as China Regional Compliance Director for Pfizer from 2010 to 2012.

Mr. Tan began his career as a public defender in the District of Columbia, where he handled numerous bench and jury trials and argued before the DC Court of Appeals five times. Mr. Tan has lived in Shanghai since 2005 and is fluent in Mandarin.

Chambers Review

Provided by Chambers

Chambers Global Guide

Corporate Investigations/Anti-Corruption (International Firms) - China

Band 3
Band 3

Individual Editorial

John Tan of Arnold & Porter's Shanghai office advises clients on contentious and advisory anti-corruption and regulatory issues. He has notable life sciences sector specialism and is regularly mandated by healthcare companies and pharmaceutical manufacturers.

Strengths

Provided by Chambers

  • John is bilingual and has rich local experience and knowledge.

    Corporate Investigations/Anti-Corruption (International Firms)Chambers Global Guide
  • His in-house experience in China and his experience in the US give him in-depth expertise in handling China and US investigation matters and also compliance matters, where he gives solid advice.

    Corporate Investigations/Anti-Corruption (International Firms)Chambers Global Guide
  • John Tan brings a wealth of knowledge and experience, including in-house experience at a global pharma company. He has built a successful and highly effective team at Arnold & Porter in China.

    Corporate Investigations/Anti-Corruption (International Firms)Chambers Global Guide

Ranked Individuals at Arnold & Porter (55)

Asia-Pacific Region

Belgium

Brazil

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    Christopher Willott

    Banking & Finance (International Firms)

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China

  • Profile image of John Tan
    John Tan

    Corporate Investigations/Anti-Corruption (International Firms)

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  • Profile image of Anton Ware
    Anton Ware

    Dispute Resolution: Arbitration (International Firms)

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Germany

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    Axel Gutermuth

    Competition/European Law: Lawyers Based Abroad

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Global Market Leaders

Latin America - International Counsel

South Korea

UK

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