Loma Negra Compañía Industrial Argentina SA is a cement manufacturing company. It operates through the following business segments: Cement, Masonry Cement, and Lime; Concrete; Railroad; Aggregates; and Others. The Cement, Masonry Cement, and Lime segment comprises of the procurement of raw materials from quarries. The Concrete segment consists of the production and sale of concrete. The Railroad segment provides railroad transportation services. The Aggregates segment offers granitic aggregates. The Others segment covers the operating income of the industrial waste treatment and recycling business for use as fuel or raw material, and others. The company was founded by Alfredo Fortabat on May 10, 1926 and is headquartered in Buenos Aires, Argentina.