Simon Neil Vivian

Marwyn Materials Ltd. owns and operates buildings materials businesses. The company acquires and controls interests in profitable building materials businesses, both listed and unquoted, in the UK, Europe and US. Marwyn is headquartered in St. Helier, Jersey.

Mowlem Plc provides solutions in building, construction, infrastructure and environmental services. It provides construction & support services to public and private sector customers from major building & infrastructure projects through to smaller building & civil engineering works and from total facilities management through to direct delivery of mechanical & electrical, cleaning and security services. The company was founded in 1822 and is headquartered in Isleworth, UK

Hanson Ltd. supplies and distributes building materials to the construction industry. It produce aggregates, ready-mixed and precast concrete, asphalt, cement and cement-related materials, bricks and a range of building products. The firm is split into five business lines which include Hanson aggregates, Hanson concrete, Hanson asphalt and contracting, Hanson cement and Hanson building products. Hanson aggregates produces and distributes crushed rock, sand and gravel from a network of quarries, depots and wharves; Hanson concrete is the supplier of ready-mixed concrete; Hanson asphalt and contracting brings together management of asphalt production sites and a national road surfacing and infrastructure contracting business; Hanson cement is a manufacturer of Portland cement, both in bulk and in bags, and produces regen; and Hanson building products is one of the producers of clay bricks and also makes thermalite and aggregate blocks. The company was founded by James Edward Hanson and Gordon White in 1964 and is headquartered in Maidenhead, the United Kingdom.

Mineral Products Association Ltd. is a trade association for the aggregates, asphalt, cement, concrete, dimension stone, lime, mortar, and industrial sand industries. The private company is based in London, UK, and has subsidiaries in the United Kingdom. The British company's website provides information on the industry overview, essential materials, extracting minerals, sustainable solutions, quarries and nature, careers, and partnerships. The company was founded in 2009, and Jon Prichard has been the CEO of the company since 2022.