Southern Star Concrete is a ready-mix concrete supplying company that serves the states of Texas and Arkansas. It produces and sells more than 5 million cubic yards of concrete every year. The company operates more than 45 concrete plants and owns a fleet of over 600 mixer trucks. It maintains locations in Houston; Dallas and Fort Worth, Texas; and Little Rock, Ariz. Southern Star Concrete is owned by two Columbia-based companies, Compa a de Cemento Argos S.A. and Cementos del Caribe S.A. Compa a de Cemento Argos S.A. primarily focuses on cement, concrete and related products. It also invests in financial and insurance companies. Cementos del Caribe S.A. is a cement producer.