The Mineral Products Association (MPA) is the UK trade association for the aggregates, asphalt, cement, concrete, dimension stone, lime, mortar and silica sand industries. With the merger of British Precast, and affiliation of the British Association of Reinforcement (BAR), Eurobitume, MPA Northern Ireland, MPA Scotland and the British Calcium Carbonate Federation, it has a growing membership of 520 companies and is the sectoral voice for mineral products. MPA membership is made up of the vast majority of independent SME quarrying companies throughout the UK, as well as the 9 major international and global companies. It covers 100% of UK cement and lime production, 90% of GB aggregates production, 95% of asphalt and over 70% of ready-mixed concrete and precast concrete production. In 2018, the industry supplied £16 billion worth of materials and services to the Economy. It is also the largest supplier to the construction industry, which had annual output valued at £172 billion in 2018. Industry production represents the largest materials flow in the UK economy and is also one of the country’s largest manufacturing sectors.