As Chief Regulatory & Risk Officer, Ms Yeo oversees Risk Management & Regulation (RMR) that is responsible for maintaining a robust regulatory framework for SGX's operation of a fair, orderly and transparent market. RMR encompasses member supervision, issuer and sponsor regulation, market surveillance, enforcement, risk management, and regulatory policy. They work closely with the Monetary Authority of Singapore (MAS) in developing and enforcing rules and regulations for market participants.

Ms Yeo has been with SGX since July 2004. Before SGX, Ms Yeo was at Temasek Holdings where she was responsible for capital resource management. For most of her career, she was at MAS where she held responsibilities in various areas, namely, managing the Singapore dollar exchange rate, money market operations and the investment of foreign reserves, as well as overseeing the regulation of the securities and futures markets.

Ms Yeo serves on the board of Shared Services for Charities Limited, Singapore Land Authority, Audit Committee of National Council of Social Service and the Singapore Institute of Directors Council. Ms Yeo graduated with Honours in Economics and Political Science from the University of Singapore and holds a Master's degree from the London Business School, UK.

Ms Yeo was awarded the Public Administration Medal (Gold) at the Singapore National Day Honours in 1994.