Group 1 - The core objective of the investigation is to promote the transformation and upgrading of the traditional green building materials industry, enhancing communication and collaboration between government and enterprises [1][3] - The investigation team visited several companies, including Shandong Lantian Qicai Building Materials Co., Ltd., Shandong Wanjia Aluminum Co., Ltd., and Shandong Ruijiete New Materials Technology Co., Ltd., to understand their challenges and demands in the green transition [3] - Discussions were held on topics such as policy support for the industry, improvement of technical standards, integration of production, education, and research, and mechanisms for supply-demand matching [3] Group 2 - The Deputy Director of the Municipal Housing and Urban-Rural Development Bureau emphasized that green building materials are crucial for the transformation and upgrading of the construction industry [3] - The Municipal Housing and Urban-Rural Development Bureau plans to optimize policy guidance and strengthen departmental collaboration to promote technological innovation and the transformation of achievements in green building materials [3] - The investigation laid a solid foundation for the bureau to formulate targeted support policies and foster healthy development in the green building materials industry, while also facilitating communication among enterprises for industry upgrades [3]