The 16th Asia Conference on Mechanical and Aerospace Engineering (ACMAE 2025), the sister conference of ICMAE, will be held in Xi'an, China during December 12-14, 2025, following the successful conferences in Harbin, China last year, Hongkong, China in 2023, Online in 2022, Nanjing in 2021, online in 2020, Bangkok, Thailand in 2019, Singapore in 2018 and Yokohama, Japan in 2017. ACMAE 2025 is sponsored by Shaanxi Laboratory of Aerospace Propulsion, hosted by Shaanxi Province Aerospace and Astronautics Propulsion Research institute and National Key Laboratory of Solid Rocket Propulsion, technically supported by Harbin Engineering University, Beijing Institute of Technology and Department of Aeronautical and Aviation Engineering (AAE) of The Hong Kong Polytechnic University (PolyU).