Hannah Casey is Corporate Network Lead at the Ellen MacArthur Foundation, the world’s leading NGO for the circular economy, where she leads partnership development across the Plastics & Packaging, and Fashion & Textiles Missions. Her work centres on building the cross-industry coalitions needed to shift entire value chains toward circularity — recognising that no single company, however ambitious, can redesign a system alone. Hannah works closely with global brands, manufacturers and policymakers to align commercial strategy with systemic change, drawing on the Foundation’s role convening business, government and innovators around a shared circular economy agenda. She brings a particular interest in how collective action provides a strategic advantage for leading businesses.