CSR Limited (ASX: CSR) manufactures and supplies sustainable building products and construction materials primarily for the residential, commercial, and industrial sectors in Australia and New Zealand. The company offers autoclaved aerated concrete (AAC) blocks and panels under the CSR Hebel brand; lightweight cladding systems, fiber cement sheets, and weatherboards under the James Hardie and Cotto brands; pre-painted steel and aluminum roofing, walling, and flooring products under the Stratco brand; and quarried materials such as cement, lime, and aggregates through its property and materials businesses. CSR operates quarries, manufacturing facilities, and distribution networks across Australia, with key operations in New South Wales, Queensland, South Australia, and Western Australia, and exports select products to Asia-Pacific markets; founded in 1855 as a colonial sugar refinery, it transitioned to building products following sugar industry deregulation in the 1980s and is headquartered in North Ryde, Sydney. In the past two years, CSR completed the strategic divestment of its aluminium extrusion business to funds managed by China Hongqiao Group for A$145 million in fiscal 2024, enabling a sharper focus on core building products; announced a A$140 million expansion of its lime production capacity at the Gladstone quarry in Queensland to meet rising demand from infrastructure and mining sectors; and formed a distribution partnership with BlueScope Steel for expanded Stratco steel product reach in Western Australia as of late 2024.