2021 Owens Corning Sustainability Report | Our Approach | Compliance and Beyond | 74 COMPLIANCE INITIATIVES Environmental Compliance Owens Corning has policies and procedures in place to ensure that our operations are conducted in compliance with all relevant laws and regulations. Through these efforts, we are able to meet our high standards for corporate sustainability and environmental stewardship. EHS professionals conduct internal environmental assessments at both the site and business levels. Our manufacturing facilities are subject to national, regional, and local laws and regulations related to the presence of hazardous materials, pollution, and protection of the environment. These laws and regulations cover air emissions, discharges to water, management of hazardous materials, handling and disposal of solid wastes, and remediation of contaminated sites. To ensure our compliance with these regulations, we rely on our EMS, which is based on the principles of ISO and helps our manufacturing facilities track progress toward our long-term sustainability goals, which require significant global reductions in our environmental impacts that go beyond compliance. Approximately 36% of our locations were certified to ISO 14001, which accounts for 50% of our employees. In addition, approximately 47% of our locations use our internal Owens Corning EMS, which is based on the principles of ISO 14001, accounting for 36% of our employees. Thus, 83% of our locations have implemented an environmental management system, accounting for 86% of our employees. Further, approximately 47% of our locations were certified to the ISO 9001 standard for a QMS (Quality Management System) in 2021, representing approximately 62% of our employees. ENVIRONMENTAL MANAGEMENT SYSTEM LOCATIONS EMPLOYEES ISO 14001 Certification 36% 50% Internal Owens Corning EMS 47% 36% Environmental Management System 83% 86% Throughout our operations, we work diligently to exceed expectations related to environmental compliance, data privacy, and more. Photo submitted by: Stefan Gielen | Tessenderlo, Belgium Mehmet Dalkilic and Erwin Lemmens, shift leaders at the Tessenderlo FOAMGLAS ® plant, during TPM bootcamp.