- Business
- Diamond Building Products Public Company Limited manufactures and distributes roofing products, boards and ceilings, siding boards, other roof accessories, non-roof products, and provides roof stripping and installation services under the trademarks Diamond, Roof, Adamas, and Jearanai. The company offers fiber cement tiles including Roman Tiles, Small Corrugated Tiles, Jatulon Tiles, Jearanai Tiles, and Fiber Cement Ridges; concrete tiles such as CT Diamond, CT Venice, Adamas, and Concrete Ridges; boards and ceilings comprising Diamond Board, autoclaved aerated concrete blocks (Diamond Block), lintels (Diamond Lintel), and kitchen counters (Diamond Counter); siding boards including lathes, eaves, fences, and floor planks; roof accessories like heat insulators, foils, bird guards, mortar paint, and steel roofs with volcanic rock coating (DECRA); and non-roof products such as trusses, beams, purlins, and gypsum boards. Founded in 1985 and headquartered in Saraburi, Thailand, with branch offices in Bangkok, Khon Kaen, and additional facilities in Saraburi, it operates primarily in Thailand through a network of distribution agents and serves housing projects and residential customers. In December 2023, the company approved a 648 million baht investment in a second autoclaved aerated concrete production line (AAC-2) with 163,200 tons annual capacity at its Saraburi factory to meet rising demand; in June 2022, it invested 477 million baht in a concrete roof tile production machine adding 100,000 tons capacity amid over 95% utilization of existing lines; and in 2024, it appointed new independent directors including Mr. Jark Chulakiet and Assoc. Prof. Dr. Somjai Phagaphasvivat.