From July 23 to 26, the research group of CCAIA carried out field research activities in Shandong region. They respectively investigated chlor-alkali production enterprises in Shandong region such as Chlor-alkali Plant of Chalco Shandong Co.,Ltd, Bohui Paper, Jinling Group, Shandong Dadi Salt Chemical Group, Shandong Lutai Chemical Co,.Ltd and Zhongyin Electrochemical. Zhang Peichao, vice president and secretary-general of CCAIA, Wang Lili, director of the International Cooperation Working Committee, and Wang Li, director of the Research Department, participated in the research. Through on-site inspections and discussions, the research group had in-depth communications with relevant persons in charge of enterprises, and learned in detail about the production and operation status of enterprises, difficulties and problems encountered, and the support and services that enterprises need from CCAIA. At the same time, the research group also conducted detailed research on the application of domestic equipment technology, the coupling development of enterprises with new energy and new materials, the renewal and transformation of old equipment, and the intelligent development of enterprises.