4th International Summit on Biopolymers and Polymer Science (ISBPS2026), which will be held from July 23–25, 2026, in Prague, Czech Republic. Following the success of ISBPS2025 in Frankfurt, this summit aims to bring together leading researchers, scientists, academicians, and industry professionals from around the world to share the latest advancements in Biopolymers, Polymer Chemistry, Sustainable Materials, and related technologies.