Richard Barker was appointed as a full-time member of the International Sustainability Standards Board (ISSB) in June 2022, effective 8 July 2022.
Before joining the ISSB, he served as deputy dean and professor of accounting at Saïd Business School, University of Oxford, UK. In this capacity, he led Oxford Saïd’s sustainable business initiatives.
He has published a wide range of academic research papers on accounting and sustainability disclosures. He has chaired the expert panel of Accounting for Sustainability (A4S) and served as a member of several committees and bodies focused on corporate reporting in the UK and Europe, including the UK Corporate Reporting Council (UK accounting standard-setter), the Financial Reporting Advisory Board and the European Accounting Association’s Accounting Standards Committee.
Professor Barker served as a research fellow at the International Accounting Standards Board from 2001 to 2007.
He has a Bachelor’s degree in history and economics from University of Oxford and a PhD from University of Cambridge, UK.
Barbara Duganier has extensive executive and board experience in multiple facets of the energy sector, including renewables, as well as board experience in the consulting, distribution, EPC, insurance, and IT services sectors. She is presently a member of the Board of Directors of three publicly-traded companies and two private companies, having served on nine for-profit boards in her decade of board service. She has served as a lead independent director and her board committee experience is extensive; she has chaired audit, compensation, ESG/enterprise risk, and nominating and governance committees. In her 44-year career, she has served in multiple global executive and non-executive director roles.
Barbara’s current boards include MRC Global (NYSE: MRC), a global distributor of products and services to energy and industrial markets where she chairs the Environmental, Social, Governance & Enterprise Risk Committee, is a member and past chair of the Audit Committee, and is a past member of the CEO Succession Committee; Texas Pacific Land Corporation (NYSE: TPL), one of the largest landowners in Texas, with land and resources management and water services and operations businesses, where she chairs the Compensation Committee, and is a member of the Audit Committee and two Special Committees; Arcadis N.V. (Euronext: ARCAD), a global design and consultancy organization for natural and built assets where she is a member of the Audit Committee and the Sustainability Committee; McDermott International, a private multi-national engineering, procurement, and construction company where she chairs the Audit Committee and is a member of the Risk Committee; and Pattern Energy, a private renewable energy company that develops, constructs, owns and operates wind, solar, transmission and energy storage projects worldwide, where she chairs the Audit Committee.
Deeply experienced in energy and sustainable development, Lourdes Melgar brings to the forefront strategic issues pertinent to the transition to a low-carbon economy. As researcher at the Massachusetts Institute of Technology and the Baker Institute, she draws from her extensive policy career to the search of solutions to accelerate the transformation of energy systems.
Dr. Melgar sits on boards of listed companies (FTSE and NYSE) and holds positions in the advisory boards of the Global Energy Alliance for People and Planet, the Natural Resource Governance Institute, Chapter Zero Mexico, and the Board of Trustees of Mount Holyoke College. She serves or leads on several audit and finance, governance and sustainability committees across sectors.
During the time of design, negotiation, and initial implementations of Mexico’s 2013 Energy Reform, she served as Vice Minister for Electricity (2012-2014) and Vice Minister for Hydrocarbons (2014-16), playing a key role in the definition of the new model, the creation of the electricity market, the design and bidding process of oil contracts, and the inclusion of environmental and social sustainability. Previously, as a career diplomat, she held various positions in Mexico’s Foreign Service, and served as Director General for International Affairs at the Ministry of Energy.
Dr. Melgar was Founding Director of the first Center for Sustainability and Business at EGADE Business School. She was the 2016-17 Robert E. Wilhelm Fellow at MIT and has been a visiting scholar at the Woodrow Wilson Center and at the Jackson School of Geosciences of the University of Texas. Dr Melgar holds a PhD from MIT.
Sharon was the Deloitte Global Chair from 2019 – 2023. She has 37 years of experience auditing and advising clients across a broad range of sectors and has spent more than three decades on various Deloitte and external not for profit boards, including 14 years on the Deloitte Global Board.
An advocate for collective action on environmental sustainability and climate change, Sharon regularly engages with global leaders from businesses, governments and NGOs on these topics, and frequently speaks about ESG-related matters in public forums. She is a strong believer in the need for greater diversity, equity, and inclusion in business and civil society, and she has long championed greater diversity in senior leadership roles to build a more equitable future for all.
Following a master’s degree in business administration, Tjalling Tiemstra joined Unilever. He subsequently obtained a degree as Chartered Accountant (RA).
After working for Unilever for 22 years in various management positions in finance and general management in five countries, Tiemstra became member of the Boards of Management (as CFO) of (respectively) two listed companies.
Since 2008 he has been a member of various supervisory, advisory and foundation boards and committees, as well as Deputy member of the Enterprises Section of the Court of Appeal in Amsterdam. Tiemstra recently completed a master’s degree in philosophy of law at Leiden University.