What is the fine-grained topic of the following text: The programme will feature a keynote paper from Sir Richard Leese, Leader of Manchester City Council, followed by Polymer contributions from 3M, Victrex and Axion Polymers talking about upcycling fluoropolymers, high performance aromatic polyketones working for and against the environment in the energy industry and the challenges of delivering a circular economy for plastics in the automotive sector. Only return the topic.
Polymer contributions in upcycling, energy industry, and automotive sector