From March 11th to 14th, CCAIA conducted on-site research activities in the Shandong region. It respectively investigated chlor-alkali production enterprises in Shandong, such as Huatai Group, Gaoxin Chemical, Shandong Minji, Dongyue Group, Shenxian Huaxiang, Luxi Chemical, and Xinfa Group. Zhang Peichao, the vice president and secretary-general of CCAIA, Zhang Shoute, the deputy secretary-general, and Wang Li, the director of the Industrial Research Department, participated in the research. Through on-site inspections and discussion exchanges, CCAIA had in-depth communication with the relevant persons in charge of the enterprises, and gained a detailed understanding of the production and operation situations of the enterprises, the difficulties and problems they encountered, as well as the support and services that the enterprises needed from CCAIA. At the same time, CCAIA also conducted a detailed investigation on the development direction of the enterprises during the "15th Five-Year Plan" period, the application of domestic equipment technologies, the coupled development with the new energy industry, and the situations of internationalization and intelligent development.