Joanna Mao joined the United States Information Technology Office (USITO) in September 2015 serving as its Deputy Managing Director. Prior to that, Joanna was employed with Lenovo, Intel, A.P. Muller. Maersk, Microsoft and Ogilvy & Mather. She has 17 years of marketing, communication and partner management experience in the information technology sector, and while serving as spokeswoman, oversaw government affairs in North Asia. Joanna was once in investment banking, providing counseling for Chinese companies seeking overseas listings while serving for ING Baring.

Jonathan Tam helps companies navigate technology laws so they can make sound decisions about data, AI and intellectual property. He also helps companies respond to government investigations, information requests and supervisory proceedings initiated by US federal and state regulators.

Clients praise Jonathan for his ability to synthesize complex legal frameworks, case law and practical experience into clear and actionable road maps. His advice is known for being practical, nuanced and agile, allowing teams to navigate regulatory uncertainty without losing momentum. He also brings significant experience managing regulatory scrutiny, helping companies respond effectively to investigations while positioning them for sustainable compliance outcomes.

Jonathan is a licensed US and Canadian attorney. He is a member of the Executive Committee of the California Lawyers Association's Privacy Law Section and the immediate past Chair of the Cybersecurity and Privacy Law Section of the Bar Association of San Francisco.

With nearly 30 years of legal experience, Mr. Zhou concentrates his practice on foreign direct investment, cross-border mergers and acquisitions, private equity and venture capital transactions, as well as regulatory compliance and data security matters. He regularly advises multinational corporations (from Fortune 500 to SMEs) and non-governmental organizations across diverse industries—including technology, automotive, aviation, media and entertainment, semiconductors, healthcare and life sciences, banking and financial services, publishing, manufacturing, consumer products, and professional services—on their strategic expansion, investments, and business operations throughout China and Asia.
Mr. Zhou also advises leading Chinese companies on outbound investments, cross-border mergers and acquisitions, and strategic alliances across global markets including the United States, Europe, and other key jurisdictions. He is also familiar with regulatory matters impacting international trade and investment, including CFIUS reviews, export controls, and economic sanctions.

Prior to joining JunHe, Mr. Zhou was a partner in the transactional and regulatory group at Wilmer Cutler Pickering Hale and Dorr LLP. Earlier in his career, he practiced corporate law at Paul, Weiss, Rifkind, Wharton & Garrison LLP, working in its New York, Hong Kong and China offices.