The validation of delivery methods for propellant and fluids used in Soyuz operations at the French Guiana launch site is nearing completion as preparations continue for this medium-lift vehicle’s maiden flight next year. The means of supplying liquid oxygen, liquid nitrogen and hydrogen peroxide to the Soyuz launch pad have now been confirmed, while final evaluations for the delivery of kerosene are to be carried out in November and December. Liquid oxygen and kerosene are the propellants for Soyuz’ first, second and third stages; liquid nitrogen provides onboard pressurization and inerting; while hydrogen peroxide is used to drive gas turbines that power the launcher’s turbopumps.