Mrs Mildred Tan is the Chair of Singapore Totalisator Board (Tote Board), Chair of Singapore University of Social Science (SUSS) Board of Trustees and Co-Chair for Global Future Council on the Future of Philanthropy for Climate and Nature, World Economic Forum. She is also Board Director of Philanthropy Asia Alliance, National University Health System (NUHS), Wing Tai Holdings and AIA (Singapore).

In addition, she sits on the Council of Presidential Advisers as a Full Member.

Mrs Tan was awarded the Public Service Medal in 2007, the Public Service Star in 2014 and the Meritorious Service Medal in 2025 for outstanding contributions by the Singapore Government. She was a Nominated Member of Parliament in Singapore from 2009 to 2011.