CRH is a global manufacturer of a range of building products used in construction projects, operating via a vertically integrated business model. The past decade has seen CRH transform into a leading building materials business, with increasing exposure to upstream building activities such as aggregates and cement. CRH's geographic footprint is mostly across developed markets. North America is CRH's largest market and accounts for 59% of sales. The company is the largest producer of aggregates and asphalt in the United States.