April 11th to 14th, 2026, Prof. Xi Zhang and Dr. Jiang-Fei Xu, together with other postdoctoral fellows and PhD studentss, attended the 35th Chinese Chemical Society Congress held in Chongqing, China. Prof. Xi Zhang gave a lecture titled "Depolymerizable and Recyclable Polymers" at the Division of Dynamic Polymers. Dr. Jiang-Fei Xu gave a lecture titled "Sulfilimine-based click-clip reactions" in Supramolecular Self-assembly and Soft Materials Chapter. Many postdoctoral fellows and PhD students demonstrated their works.