Carol Xianxiao Liu
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Carol Liu advises U.S. and foreign companies in high-stake antitrust and class action litigation, government investigations, and cross-border merger reviews before the U.S. Department of Justice, the Federal Trade Commission, state attorneys general, and international enforcers in Europe and Asia.

Recognized among the top antitrust attorneys “to watch” by Best Lawyers, Carol represents clients in a range of industries, including aerospace, automobile, food and beverage, insurance, and technology. Carol has particularly deep experience representing major healthcare, insurance, and life sciences companies.

While at Axinn, Carol completed a secondment at a top law firm in Japan, where she represented Japanese and U.S. clients in cross-border antitrust matters before the JFTC. Fluent in Mandarin Chinese and proficient in Japanese, Carol is particularly adept at helping Asian clients navigate U.S. antitrust law. During her time in Japan, Carol also co-taught a course on global competition law at the University of Tokyo School of Law.

Carol earned her J.D. from Harvard Law School, where she was a founding member of the Harvard China Law Association. She is a member of Axinn’s DEI committees, and maintains an active pro bono practice dedicated to helping immigrants obtain political asylum in the U.S.


  • Represented McKesson Corporation in a joint venture between McKesson's US Oncology Research (USOR) and HCA Healthcare Inc.'s (HCA) Sarah Cannon Research Institute (SCRI).
  • Represented Alvogen subsidiary Alvogen Pine Brook Inc. and its marketing partner, Lotus Pharmaceutical Co. Ltd. in antitrust litigation challenging purported “reverse payment” patent settlement.
  • Represented Momenta Pharmaceuticals in a series of antitrust cases involving patent enforcement.
  • Represented Johnson Controls, a multinational fire, HVAC and security equipment manufacturer in its $2 billion sale of Scott Safety to 3M.
  • Coordinated global antitrust strategy across seven jurisdictions for Ball Corporation’s sale of metal beverage packaging facilities in China to ORG Technology Co., and advised on related licensing and technology agreements.
  • Represented Ball Corporation in its creation of Ball Metalpack, a joint venture with Platinum Equity Partners in which Ball maintained 49% ownership and generated approximately $675 million in value.


  • Super Lawyers, Top Women Attorneys, Rising Stars (2021 – 2023)
  • Best Lawyers “Ones to Watch” (2023 – 2024)
  • New York State Bar Association, Empire State Counsel Honoree for Pro Bono Service (2022)


  • JD – Harvard Law School (2015)
  • BA, magna cum laude, Economics – Mount Holyoke College (2012)


  • New York
  • U.S. District Court Eastern District of New York
  • U.S. District Court Southern District of New York

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