A cement manufacturer is a company that produces cement, a key ingredient in construction materials like concrete and mortar. The process involves extracting raw materials such as limestone and clay, which are then crushed, mixed, and heated in a kiln to create clinker. This clinker is ground into a fine powder, resulting in the final product known as cement. Cement is essential for building structures, roads, and bridges, making cement manufacturers vital to the construction industry. Major cement manufacturers include companies like LafargeHolcim and CEMEX, which operate globally to meet the growing demand for construction materials.