The 9th International Conference on Energy, Resources, Environment and Sustainable Development (ERESD 2022) hosted by the China University of Mining and Technology (CUMT) will be held on May 25-28, 2022 at New Century Grand Hotel, Xuzhou, China. It is an event focusing on all fields of energy, resources, environment and sustainable development with an aim to provide a unique forum for in-depth exchange of the latest developments as well as opportunities and challenges in the above fields among all participants from industry, government and academia throughout the world. The ERESD organizing committee kindly invites you to submit papers and attend this important event in Xuzhou.a