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Our Team

Leadership
Our small team of specialist practitioners brings a wealth of experience and local knowledge.
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Assheton Carter

Executive Chair and Founder
Assheton is an expert on responsible sourcing, sustainability standards, environmental markets, non-financial risk, and responsible investment. He has more than 30 years of experience focusing on the international supply chains of mining, metals, and gemstones,...
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Dave Crew

Chief Executive Officer
With more than 20 years of experience in business growth and organisational transformation, Dave Crew leads TDi Sustainability as CEO. An experienced entrepreneur with a PhD in Business Administration and a Master’s in Economics, Dave...
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Julija Menise

Senior Vice President
Julija specialises in developing frameworks and standards that enhance supply chain transparency and ESG compliance. She has extensive on-site audit and assessment experience ranging from mining and smelting to manufacturing and retail, carried out in...
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Soledad Mills

Senior Vice President
With more than 20 years of experience in the ESG space, Soledad is a sought-after advisor, facilitator and thought leader on strategies, standards, and best practices in responsible sourcing and sustainable development.
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Hayley Flack

Chief Operations Officer
Hayley excels in the development, implementation and monitoring of day-to-day operational systems and processes. She has the vital task of developing TDi's policies and standards, fostering a inclusive and productive environment that enables the team...
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Tapiwa Chinowaita

Chief Technology Officer
Tapiwa leads the development and commercialisation of cutting-edge digital platforms focused on enabling responsible sourcing through actionable ESG data.
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Calvin Laing

Head of Data and Due Diligence
Calvin is a data and due diligence professional, with more than 15 years of experience leading human rights, social and environmental initiatives across diverse global contexts.