Ferro Corporation is an American producer of technology-based performance materials for manufacturers, focusing on four core segments: performance colors and glass; pigments, powders, and oxides; porcelain enamel; and tile coatings systems. Ferro was founded in 1919 by Harry D. Cushman in Cleveland. The companys headquarters are currently located in Mayfield Heights, Ohio. In 2007, the company was listed as 844 on the Fortune 1000. As of 2011, Ferro operated 40 manufacturing facilities around the world. On January 18, 2005, Ferro Corporation updated the status of its investigation into inappropriate accounting entries in its Performance Chemicals business and its restatement process affecting fiscal years 2001, 2002 and 2003 and the first quarter of 2004.