Alfons Frederick Knauf

Chiyoda Ute Co., Ltd. engages in the manufacture and sale of building interior materials. It operates through the Gypsum Board and Others divisions. The Gypsum Board division produces, sells, and transports gypsum boards. The Others division markets non-gypsum board products. The company was founded by Tomihisa Hirata on January 17, 1948 and is headquartered in Mie, Japan.

Gebr. Knauf KG operates as a holding company, which engages in the production of gypsum and gypsum-related products, insulation and soundproofing materials, as well as cardboards for the manufacture of plasterboards. It also specializes in the development and production of machines for the processing of plasters for indoor and outdoor use. The company was founded on December 6, 1972 and is headquartered in Iphofen, Germany.

KNAUF INTERNATIONAL GmbH is a holding company, with interests in the production and distribution of construction materials. It offers dry construction mixtures, gypsum plasterboard, and drywall. The company was founded in 1932 and is headquartered in Iphofen, Germany.