Knauf is a German company founded in 1932 by the brothers Karl and Dr. Alfons N. Knauf. Today Knauf is one of the world's leading manufacturers of modern insulation materials, dry wall construction systems, plasters and accessories, thermal insulation composite systems, paints, floor and ceiling systems, and construction equipment and tools.
Flat Glass Group Co., Ltd. manufactures glass products. The Company mainly produces and sells photovoltaic glass, float g lass, architectural glass, household glass, and more.