Shenzhen Esun Industrial Co., Ltd. say their ePC filament is a fireproof and environmentally friendly material for 3D printing. Established in 2002, the company now specializes in researching, developing and producing polymer materials such as PLA and Polymorph through their three R&D centers. Since 2007, eSUN has been researching and developing 3D printing materials. That work has led them to develop a number of special purpose 3D printing supplies. You can read the whole story here: http://3dprint.com/85639/esun-fire-resistant-filament/