From March 11th to 14th, CCAIA organized on-site research activities in the Jiangsu, Zhejiang, and Shanghai regions, East China, respectively investigating chlor-alkali manufacturer such as Formosa Industries (Ningbo) Co.,Ltd, Zhejiang Oceanking Development Co., Ltd., Zhejiang Jiahua Energy Chemical Industry Co.,Ltd., Shanghai Chlor-alkali Chemical Co., Ltd., Suzhou Huasu Plastics Co., Ltd., as well as downstream and equipment manufacturing enterprises such as Zhejiang Zhongcai and Jiangsu Ancan Technology Co., Ltd. Zhang Peichao, Vice President and Secretary General of CCAIA, and Li Qiong, Director of the Information Department, participated in the research. During on-site inspections and discussions, CCAIA had in-depth communication with relevant corporate leaders to gain more insights into the production and operation, difficulties, and support and services needed. At the same time, CCAIA also conducted detailed research on the expansion of overseas markets and internationalization strategies of enterprises, the development of special and specialized polyvinyl chloride, hydrogen energy utilization, the operation of PVC¡¯s downstream sectors, and the integration of futures and spot markets. Based on the investigation results, CCAIA will carry out targeted work to better serve industry enterprises.