Certifications ENERGY STAR ® Toledo, Ohio, U.S. (World Headquarters) Wildlife Habitat Council Toledo, Ohio, U.S. (World Headquarters); Granville, Ohio, U.S. ISO 50001 Chambéry, France; Klášterec, Czech Republic; Tessenderlo, Belgium GENERAL DISCLOSURES KEY PARTNERSHIPS Appendix D 2021 Owens Corning Sustainability Report | Appendices | 337