Export and import of military and special-purpose products and services, including armament, ammunition, military and special equipment, spare parts and components, explosives, and other products which can be used for the development and manufacture of armament, military and special equipment; Repair, maintenance and upgrade of armament and military equipment of foreign customers; Export of up-to-date technologies, design documentation and other research and development of military and special products; Design and construction of special installations and facilities; Development of military-technical cooperation; Marketing, consultancy, intermediary services regarding the foreign trade of arms and military equipment.