BNZ Materials, Inc. is a global supplier of refractories and structural insulating boards. Originally organized by former Manville Corporation executives in December of 1987, today the Company has expanded and is international in scope. In addition to operating the two former Johns-Manville plants located in Billerica, Massachusetts and Zelienople, Pennsylvania. BNZ also operates an Insulating Firebrick Plant in Plemet, France. Each facility manufactures products distinct from competitive offerings using proprietary combination of equipment, technology and know-how. Each plant offers a different set of opportunities for new product development. All plant facilities have productive capacity available to accommodate growth in existing lines as well as new products.