Congratulations to the 9th International Conference on Catalysis and Sensing Environment and the 2nd International Symposium on C5 Supramolecular Chemistry successfully held in Yangling Northwest A&F University (News)! Two teachers, Wang Leyong and Hu Xiaoyu, attended the meeting as members of the organizing committee. Yangling in spring, as the only Uni. Town in China, welcomes the arrival of the conference representatives. Thanks to the team of Professor Pei Zhichao and Pei Yuxin for their hospitality and excellent organization!