He specialises in competition law in both academia and practice. Academically, he teaches competition law and publishes internationally on the subject. He has practical experience handling competition law matters involving dispute resolution, exclusion/exemption-related applications, and advisory work. He regularly gives CPD talks and accepts media interviews on competition law. He serves on the Bar Association's Special Committee on Competition Law, the Consumer Council's Competition Policy Committee, and the Hong Kong Competition Association's Executive Committee, and as a Non-Governmental Advisor to the International Competition Network.