Organized by the French Commissariat à l’énergie atomique et aux énergies alternatives (CEA), the ATALANTE conference series started in 2000. The technical sessions of this sixth edition, hosted in Avignon from 1 to 6 September 2024, will cover all the aspects of the fuel cycle chemistry from the head-end of the fuels cycle to the behaviour of actinides in the environment including the separation chemistry, the basic actinide chemistry, the actinide material chemistry or waste conditioning and long-term evolution.