Generating a polymeric circular economy has no single solution, nor can it be solved within a single body. Strong collaboration with industry, government, and academia has allowed for recent breakthroughs in plastic and polymer waste reduction BASF is committed to responsible manufacturing of chem. and polymeric materials from cradle to cradle and generating chem. for a sustainable future. Within our sustainability targets is our circular economy program: aiming to utilize feedstocks, material cycles, and new business models to generate 250,000 tons of circular feedstock by 2025, doubling of circular sales to 17 billion Euro by 2030, and prioritizing circular research and production To achieve such aims, BASF has accelerated collaborative R&D projects in materials' mech. recyclability, chem. recycling, biodegradables and compostables, and has worked with partners to advance the science of microplastics and nanomaterials. This seminar will discuss select advances, challenges, and solutions in the tech. sphere and biosphere of the circular economy for polymer and plastic materials including the topics of chem. recycling, mech. recycling, biodegradable products, and microplastics.