Welcome to the official website of 2025 the 9th High Performance Computing and Cluster Technologies Conference (HPCCT 2025). HPCCT 2025 will be held in Taicang, China during August 22-24, 2025. The aim as well as objective of HPCCT 2025 is to present the latest research and results of scientists related to High Performance Computing and Cluster Technologies topics. This conference provides opportunities for the delegates to exchange new ideas face-to-face, to establish business or research relations as well as to find global partners for future collaborations. We hope that the conference results will lead to significant contributions to the knowledge in these up-to-date scientific fields.