Expertise and experience in mining, energy, resources and infrastructure, environment and climate, large corporates, corporate governance and stakeholder management and macroeconomic and public policy.

May is a visiting adjunct-professor at the University of Witwatersrand. For the past 30 years she has worked on health and safety in mining, environmental protection, and sustainability in Africa. She started as an NGO volunteer and became the Head of the National Union of Mineworkers’ (NUM) Health and Safety Unit. She also participated in UN's International Labour Organisation forums. She has held many positions, such as non-executive director at Aveng Ltd, Director of the Centre for Sustainability in Mining and Industry, Executive Director of CSIR's Natural Research Unit, Chairperson of the Mine Health and Safety Council, the Board of the Mining Qualifications Authority, and Deputy Director-General of the Department of Minerals and Energy for Mine Safety and Health and a variety of other roles locally and internationally. She is the Chairperson of Tshiamiso Trust and was Chairperson of AngloGold's employee share option scheme. May also served as a director of the Institute for Social Dialogue.

Board committees: Member: Group Sustainability and Climate Resilience Committee and Group Transfromation, Social and Ethics Committee (effective 30 May 2025).

Nationality: South African.