12 July 2024 Dear Prof. Jian Chu [Nanyang Technological University Singapore], On behalf of the Organizing Committee of the 9th China-Singapore International Symposium on Applied Mechanics and Engineering (CSAME 2024), I am delighted to welcome you to attend and present your works. CSAME 2024 is scheduled from 28th to 30 th July 2024 at Science and Technology Innovation Center, Singapore-Nanjing Eco-Technology Island, by Southeast University, Nanyang Technological University, and Jiangsu Underground Space Society. We look forward to your experience and knowledge sharing with specialists from other countries. Please note that this invitation letter is issued with the intent of supporting your application for a visa to attend this scientific event or to assist and affirm your application for certification of official travel on business purposes. It does not bind the Organizing Secretariat nor the Conference Organizers to provide financial support for costs related to your participation (visa fee, travel, hotel, registration fees, health insurance, etc.) Sincerely, Prof Li Jianchun Organizing Chairperson CSAME 2024