 Subsequently, Argos established alliances to make investments in the Dominican Republic, Panama and Haiti.In 2005, Argos merged all of its cement producing companies in Colombia and purchased Southern Star Concrete and Concrete Express in the U.S.The following year, it purchased Ready Mixed Concrete Company in the US and merged its concrete producing companies in Colombia and then purchased the cement and concrete assets of Cementos Andino and Concrecem in Colombia.