Eagle Materials Inc. operates through two primary business sectors: Heavy Materials and Light Materials. The Heavy Materials segment includes the mining of limestone and the production, distribution, and sale of Portland cement, slag, ready-mix concrete, and aggregates. The Light Materials segment focuses on the mining of gypsum and the manufacturing of gypsum wallboard, as well as the production of recycled paperboard used primarily as facing paper for drywall. The company operates a geographically diverse network of over 70 production facilities across the US heartland and sunbelt. By owning significant raw material reserves proximate to its production facilities, Eagle Materials maintains a highly integrated and low-cost operational structure. Its products are essential inputs for residential and commercial construction, as well as major public infrastructure projects.