CRH public limited company, through its subsidiaries, engages in the manufacture and supply of building materials primarily in western Europe and North America. The company produces and sells a range of primary materials, including cement, aggregates, ready-mixed concrete, asphalt/bitumen, and agricultural and chemical lime. It also produces and sells architectural and structural concrete products, clay products, fabricated and tempered glass products, and construction accessories, as well as provides a range of inter-related products and services to the construction sector. In addition, it engages in builders' merchanting activities; and operates a network of do-it-yourself (DIY) stores that market and sell supplies to the construction sector and to the general public. Further, the company manufactures and installs pre-stressed concrete flooring planks, modular precast structures, and other products used in structures, such as hotels, apartments, dormitories, and prisons; and concrete pipes used for storm and sanitary sewer applications. It also has operations in eastern Europe, South America, the Mediterranean basin, China, Malaysia, India, and Australia. The company operates 138 Karwei and GAMMA brand DIY stores in the Netherlands; 19 GAMMA brand DIY stores in Belgium; 48 Hagebau brand DIY stores in Germany; and 33 Maxmat brand DIY stores in Portugal. CRH public limited company was founded in 1949 and is headquartered in Dublin, Ireland.