Mr.Ao joined Tokyo Stock Exchange (TSE) in 1988. He was involved in planning and operation of the listing and disclosure rules, and later served as Director of the General Administration, Human Resources, and Equities Departments. He was appointed Executive Officer in April 2016, Senior Executive Officer in April 2022, and Director, Senior Executive Officer in April 2023.

Since 2016, Mr.Ao has been involved with revising the Corporate Governance Code through TSE’s role as joint secretariat of “The Council of Experts Concerning the Follow-up of Japan’s Stewardship Code and Japan’s Corporate Governance Code” with the Financial Services Agency.

He has also been a member of the Committee on the Companies Act (Mainly in Relation to Corporate Governance) of the Legislative Council of the Ministry of Justice, the Working Group on Corporate Disclosure of the Financial System Council, and the Ministry of Economy, Trade and Industry’s Corporate Governance System Study Group.