Membership updates to GRI Supervisory Board and Stakeholder Council
Published date: 25 November 2025
Jane Diplock appointed Supervisory Board Chair, as new members to join key governance functions
Two of the non-executive oversight bodies that guide the future direction and policy of GRI will undergo an update in membership, effective from 1 January 2026.
GRI Supervisory Board
Jane Diplock is appointed Chair of the Supervisory Board – the decision-making body responsible for overseeing organizational priorities and strategy. Jane, a former Chair of IOSCO, steps up following two years as a Supervisory Board Member, with Jessica Fries to stand down as her term as Chair ends, and after six years on the Board.
Bola Adeeko continues as Vice Chair for the remainder of his second term on the Supervisory Board, while Jyrki Raina will depart after six years’ service. Two new members are appointed:
· Peiyuan Guo, Chairman of SynTao Green Finance – China
· Sue Longley, former General Secretary of the IUF (International Union of Foods) – Switzerland
I am delighted to be appointed Supervisory Board Chair of GRI and honored to succeed Jessica Fries in this role. The GRI Standards play a vital role in ensuring organizations provide valuable and accessible sustainability information, which addresses their impacts on people and planet. As GRI looks ahead to celebrating our thirtieth year in 2027, we are well-positioned to steer the future of reporting through our consensus-building, collaborative approach. Together, we can ensure that sustainability reporting unlocks corporate accountability and is the catalyst for change.”
Jane DiplockOver the last six years, we have seen significant progress – and some big changes – in the reporting landscape. It has been a privilege to help steer GRI's response over this period, in particular serving as Chair of the Supervisory Board. During this time, we have seen an increased recognition of the importance of understanding and responding to sustainability impacts, but also more complexity as different standards are adopted around the world. GRI's new strategy seeks to address this complexity while also cementing a recognition of the importance of a multi-stakeholder, impact focus at the heart of the global reporting system. In the face of political headwinds and global sustainability challenges, GRI's mission is more important than ever before. I am pleased to hand over the baton to someone with Jane's wisdom, experience and commitment to the role that reporting can play in creating a sustainable world.”
Jessica FriesGRI Stakeholder Council
The Stakeholder Council, the multistakeholder forum that provides advice and recommendations to GRI governance bodies, sees four members added. The new appointments are:
· Rupam Baruah, Business Head - Sustainability Services, South Asia, environmental services group Bureau Veritas – India
· Gabriel Hasson, Global Head of Governance and Shareholder Advisory, strategic communications advisory ICR – USA
· Cesar Sanches, Founder and Managing Director, SFX (The Sustainable Finance Exchange) – Brazil
· Michiel Slinkert, Founder and Director of sustainability consultancy Eevery – Belgium
The following Council members are to depart following the conclusion of their terms: Tuba Atabey, Clara Goyret, Paul Farella, Ozdemir Haluk, Crecentia Carina Mofokeng, and Denis Lu.
I am very grateful to the members standing down from the Stakeholder Council for their valuable counsel, and I welcome the new appointments who will join us from January. I also extend my congratulations to Jane, and I look forward to continuing to engage closely with her and the members of the Supervisory Board to ensure GRI’s priorities and strategic direction continue to be shaped and informed by the voices of all stakeholders.”
Erdem Kolcuoğlu, Chair of the GRI Stakeholder CouncilAbout Jane Diplock
Jane Diplock AO is a highly experienced corporate governance professional who has served on numerous boards and committees for listed, private and nonprofit entities, with a focus on sustainability standards, regulation, impact reporting and digitization. She is a former Chair of both the IOSCO Executive Committee and the Securities Commission of New Zealand.
Jane’s current governance roles include positions with the World Benchmarking Alliance, A4S, Abu Dhabi Global Market Appeals Panel, Wellington Zoo Te Nukuao, and Persefoni AI. Earlier in her career, she led several government departments in New South Wales, Australia, and held executive leadership positions in Westpac Banking Corporation.
Jane holds degrees in Arts and Law and a Diploma of Education from Sydney University, and a Diploma of International Law, International Economics and International Relations from the Australian National University, while she was a Chevening Fellow at the London School of Economics. She resides in Wellington, New Zealand, and holds dual Australian and New Zealand citizenship. In 2004 she was awarded the Order of Australia for her contribution to business and commerce.
GRI’s governance has a two-tier board structure, with operational leadership being the responsibility of the Management Board and oversight and guidance provided by the Supervisory Board. In addition, the Global Sustainability Standards Board (GSSB) has independent responsibility for setting the GRI Standards (a separate process is underway to update the GSSB membership).
The Stakeholder Council, which has regionally diverse membership drawn from five defined stakeholder constituencies, is a sounding board on key issues for the Supervisory Board, Management Board, and GSSB. Finally, the Due Process Oversight Committee ensures the standard-setting activities of the GSSB are conducted in accordance with its due process.