Obrascon Huarte Lain SA (OHL) is a Spain-based company engaged in the construction and engineering sectors. Its activities are structured into three segments: Concessions, Engineering and construction, as well as Development. The Concessions division focuses on the promotion, development and management of a range of transportation infrastructure, such as highways, railways, airports and ports. The Engineering and construction division comprises three business lines: Construction, which is responsible for building civil infrastructure; Industrial, which is involved in the construction, maintenance and operation of industrial plants, and Services, which includes cleaning and maintenance of buildings and public roads, waste management and green area conservation. The Development division promotes and manages tourist resorts and commercial centers. The Company, through its subsidiaries, is present in the Americas, Europe, Asia, Africa and Oceania. It is controlled by Grupo Villar Mir SAU.