Hannah Ha is a partner of Mayer Brown and co-heads the firm’s antitrust and competition practice in Asia. She has been practising competition/antitrust law for over 10 years.

Hannah has an active practice guiding clients through investigations conducted by the Commission, and also has broad experience advising companies on compliance with Hong Kong’s competition law. She is regularly engaged to deliver seminars on competition law compliance and preparation for dawn raids, review existing practices and contractual arrangements, develop competition compliance policy and codes of conducts, and design and roll out competition compliance programmes for various multinational and local companies.

She also regularly advises clients on merger control issues in China and make successful merger control filings with Chinese authorities. Hannah works closely with Mayer Brown’s global offices on the competition law and merger control front relating to the Asia component of large global transactions.

Hannah has been consistently recognised as a leading individual in antitrust and competition (Hong Kong and China) by Chambers Asia-Pacific (2009–2019)and IFLR1000 (2011–2019), who was also recognised in Expert Guides: Women in Business Law (2012, 2014 and 2016 editions) and won the Asia Women in Business Law Awards – Best in Competition and Antitrust award by Euromoney LMG (2013).

Hannah is a member of the executive committee of the Hong Kong Competition Association, a member of the competition law working group of the Association of China Appointed Attesting Officers and the Society of Notaries assisting the two professional associations in handling competition law compliance issues including making submission to and meeting with the Hong Kong Competition Commission, Department of Justice and Commerce & Economic Development Bureau (CEDB).