Core Points - The Tianzhou-9 cargo spacecraft and the Long March 7 Yao-10 rocket have begun vertical transportation at the Wenchang Space Launch Site in Hainan, marking the transition to the launch preparation phase [1] - The Tianzhou-9 mission plans to deliver approximately 6 tons of supplies to support the Shenzhou-20 and Shenzhou-21 astronaut crews [3] - The mission will include the delivery of two new sets of domestically developed extravehicular spacesuits, with an extended design life of 4 years and 20 uses, as well as upgraded space fitness equipment and two advanced space science experiment devices [5] - The launch process for the Tianzhou-9 mission will follow a similar procedure to previous missions, ensuring reliability through established successful experiences [7]