Hellas Sat 4/SaudiGeoSat 1 is a geostationary communications satellite to be used jointly by Hellas Sat and KACST. It will provide advanced telecommunications capabilities, including television, internet, telephone and secure military communications to customers in the Middle East, Africa and Europe. Another passenger of the launch is an Indian communications satellite GSAT-31.
Ariane 5 is a heavy-lift launch vehicle, part of the Ariane rocket family.
Arianespace SA is a multinational company founded in 1980 as the world's first commercial launch service provider. It undertakes the production, operation, and marketing of the Ariane programme. Their vehicles launch exclusively from French Guiana in South America.INFO WIKI