Joint researches of FGUA, VIAM, VILS Stock Co and KUMZ Stock Co in the field of development and commercialization of Al-Li alloy ingot and semiproduct production and the use of the alloys in the aircraft and rocket industries are reviewed. Prospects of these alloys used in welded structures and at subzero temperatures are shown. Properties of semiproducts are presented. The results of the latest research works, which enable an improvement in quality and a reduction in production costs of Al-Li alloy semiproducts are shown.