From April 26th to 28th, 2021, the unveiling ceremony of the Yimeng Mountain Global Geopark and the symposium on the construction and development of the Global Geopark were held in Linyi City, Shandong Province. The Administration Bureau of Zhijindong Cave Global Geopark in Guizhou Province was invited to send representatives to attend and signed a sister park agreement with the Yimeng Mountain Global Geopark during the conference.

After the signing of this sister park agreement, both sides will engage in discussions and exchanges, learn from each other's experiences and practices in park construction and management, jointly promote the effective protection of geological heritage resources and the sustainable development of geological parks, regularly carry out exchange activities, and achieve the sharing of management, technology, professional knowledge and information resources of geological parks. We will carry out cooperation, exchanges and mutual visits in areas such as geological scientific research, environmental protection, science popularization and education, sustainable utilization, sharing of scientific research achievements, and training of science popularization personnel, jointly creating world-class brands to achieve win-win cooperation and common improvement.