Circa Group

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Sustainable Synthesis of Biochemicals

When Circa was founded in 2006, the company’s aim was to convert non-food cellulose into high-performance, renewable chemicals, at scale — extracting value from waste biomass and addressing a gap in the market for better, more sustainable materials.

Interview

Leading Transformation
The Path to Sustainable Growth

Leading Transformation

As Executive Vice President of International Chemicals since early 2024, Antje Gerber has been steering Sasol through a pivotal reset—focused on resilience, innovation, and bold sustainability goals.