In December 2015, Repsol Lubricants, Specialized Products, and Asphalts, obtained the first multisite certification of the group, which envisages the Rlesa joint certification at various facilities, in order to, among other activities, manufacture and store bitumen mixtures and bitumens for the Rábade, Cartagena, Gajano, Mangualde, and Azambuja plants; and modified bitumens for the Puertollano, Gajano, and Azumbuja plants.