Magnesita Refratários S.A. (MAGG3) is a public company listed on the Novo Mercado of the stock exchange in Brazil (BM&FBovespa).The Company is one of the global leaders in providing refractory solutions, services and industrial minerals, and has served these markets for over 100 years.

In 2007, GP Investments acquired a controlling stake in Magnesita. Since 2007, Magnesita has undergone transformational growth with the acquisition of LWB, has been listed in the Novo Mercado segment of the BM&FBovespa, and has become a truly global company.