盟升电子(688311.SH)：为长征十二号运载火箭提供卫星导航系统

Group 1 - The company provides satellite navigation systems for the Long March 12 rocket, which is a critical component for rocket control [1] - The navigation system accurately processes signals from multiple satellites to determine key parameters such as the rocket's position, speed, and time in real-time [1] - This system offers high-precision navigation information during both the launch and flight phases of the rocket [1]