CSR Ltd. engages in the manufacture and supply of building products in Australia and New Zealand. It operates through the following segments: Building Products, Aluminium, Property, and Corporate. The Building Products segment includes lightweight systems, insulation, AFS walling systems, interior systems, and bricks and roofing. The Aluminium segment operates through Gove Aluminium Finance Ltd., which manufactures aluminium ingots, billets and slabs. The Property segment is involved in a small number of large-scale developments in New South Wales, Queensland, and Victoria. The Corporate segment represents unallocated overhead expenditure and other revenues. The company was founded by Edward Knox on January 1, 1855 and is headquartered in North Ryde, Australia.