Kati ter Horst

Kati ter Horst is President and CEO of Outokumpu, a publicly listed global materials company, and a leading provider of sustainable stainless steel in Europe and North America. The company focuses on how strategic materials can help customers decarbonize products, infrastructure and value chains while strengthening resilience and competitiveness. Under Kati’s leadership, Outokumpu is advancing circularity, innovation, and low-carbon stainless steel to create measurable impact beyond its own operations. In 2025, Outokumpu helped its customers reduce an estimated 12 million tons of carbon emissions, an impact equivalent to approximately 63 million train trips around the world.

With more than 25 years of international leadership experience, Kati brings a customer- and impact-driven perspective to one of the defining industrial challenges of our time: transforming hard-to-abate value chains while building a more resilient, low-carbon economy.