Hanson is one of the world's largest suppliers of heavy building materials to the construction industry. We produce aggregates (crushed rock, sand and gravel), ready-mixed and recast concrete, asphalt and cement-related materials and a range of building products including concrete pipes, concrete pavers, tiles and clay bricks. We are part of the Heidelberg Cement Group, which employs 57,000 people across five continents. Heidelberg Cement is the global leader in aggregates and has leading positions in cement, concrete and heavy building products. In North America we operate as Lehigh Hanson with more than 800 production sites. The organisation is split into five business lines. Four of them - cementations, aggregates, asphalt and ready-mixed concrete - operate in regional markets (north, south, west and Canada), the fifth - building products - has a regional market for concrete pipes and pre cast concrete and a national market for bricks, tiles and pavers. Hanson principal products are aggregates (sand, gravel and crushed rock), asphalt, concrete products, bricks and ready-mixed concrete.