Diamond Building Products Public Co. Ltd. engages in the production and distribution of roofing products, boards and ceilings, siding boards, and other roof accessories and non-roof products. The firm also provides services such as the design and installation of roofs. It operates through the Diamond, Adamas and Jearanai brands. The company was founded on August 28, 1985 and is headquartered in Saraburi, Thailand.