From capital markets to critical minerals - a board perspective that spans the full value chain
Assheton brings independent judgment shaped by 30 years across institutional finance, global sustainability leadership, standards-setting and impact investment. He offers boards the rare combination of commercial rigour, sector depth and multi-stakeholder credibility.
Current and previous board and advisory positions
This is just a selection of more than 30 board positions that Assheton has held.
Paris Peace Forum
Transition Minerals Council, 2023 to present
Impact Capital Limited
An impact investment firm, 2018 to present
Excelsior Capital
An integrated metals trader and investor, 2024 to present
Warwick Business School
WICID, 2023 to present
Fair Cobalt Alliance
Industry coalition formalising artisanal and small-scale cobalt mining in Central Africa, 2020 to present
TDi Digital
Mineral traceability platform applying digital technology to responsible sourcing and supply chain transparency, 2020 to present
Responsible Commodities Initiative
Energy standard, 2016 to present
The Impact Facility for Sustainable Mining Communities
Impact investment platform focused on the community economic development potential of mineral development, 2016 to present
The Copper Mark
Metals standard, 2019-2021
Equitable Origin
Energy sustainability standard, 2011-2021
AccountAbility
Business accountability standard, 2012-2020
Responsible Jewellery Council
2008-2020
BetterCoal
Sustainability standard, 2012-2019
Hop, Skip and Jump
UK children's charity, 2018-2020
Alliance Responsible Mining
Custodian of Fairmined, 2017-2019
Secretariat positions
CiPPPA
The Council for Inclusive, Participatory and Pluralistic Public Administration — supporting good governance and inclusive policy processes.
Natural Polymers Group
Industry group focused on sustainable natural polymer supply chains and responsible sourcing standards.
What Assheton brings to a board
Boards in critical minerals, natural resources, and sustainability face a distinctive set of pressures: tightening ESG regulation, supply chain due diligence obligations, investor scrutiny on responsible sourcing, and the strategic complexity of the clean energy transition. Assheton Stewart Carter has spent three decades working at the intersection of all of these - as a capital markets practitioner, impact investor, standards-setter, and operational leader in some of the world's most demanding mining jurisdictions.
That breadth translates directly into board value. He has chaired AccountAbility, directed The Copper Mark, co-founded the Fair Cobalt Alliance, and served on the standards committees of the Responsible Jewellery Council and Equitable Origin - giving him a rare command of both the governance frameworks boards must navigate and the commercial realities they operate within. His current roles at The Impact Facility, TDi Digital, and the Paris Peace Forum Transition Minerals Council reflect continued active engagement at the frontier of responsible investment and mineral traceability.
For companies seeking a non-executive director who can challenge management constructively on ESG risk, responsible sourcing strategy, and stakeholder engagement - while bringing credible international networks across business, government, and development finance - Assheton offers a combination that is genuinely difficult to replicate.
Areas of board expertise
Governance and accountability
Deep experience with standards bodies, multi-stakeholder governance and accountability frameworks — including AccountAbility, Equitable Origin, the Responsible Jewellery Council and the Copper Mark.
Commercial relevance
Practical insight for leaders who need results, not jargon — grounded in real transactions, investment decisions and operational delivery across multiple sectors and geographies.
Sustainability and ESG
Recognised expertise in responsible sourcing, environmental markets, supply chain due diligence and the regulatory landscape shaping corporate sustainability strategy.
Risk and investment judgment
Formed through roles in capital markets, impact investing and project risk — including as Head of Project Risk and Performance at Althelia Ecosphere.
International networks
Active relationships across business, government, development finance, NGOs and multilateral institutions in Europe, Africa, Asia and the Americas.
Keynote speaking
Critical minerals keynote speaker & conference panellist
Assheton is an internationally recognised keynote speaker on critical minerals strategy, responsible investment, and ESG risk - available for conferences and panels worldwide.
View speaking topics →Background
Career history & field expertise in critical minerals
Three decades of hands-on experience across responsible sourcing, artisanal mining governance, and natural resource strategy - the foundation for every board engagement.
Read about Assheton →Explore board opportunities
For board seat enquiries, advisory roles or governance consultancy, get in touch to discuss fit and objectives.