Construction of a quay for ships up to 200 m, an extension of the NW end of the existing quay with caissons, located at PSA Sines’s Terminal XXI, including the reprofiling of the margin, infrastructures, superstructures and equipment installation. The extension of the quay allows the increase of the capacity of the container terminal, and constitutes yet another step in affirming the importance of this structure of the Port of Sines.