2021 Owens Corning Sustainability Report | Our Approach | Stakeholder Engagement & Material Issues | 39 OWENS CORNING’S MATERIALITY GRIDS Our Materiality Matrices are structured to adhere to GRI standards. In contrast with traditional matrices, this type of matrix reflects the significance of environmental, social, and governance (ESG) impacts to the company, as well as the influence a Material Topic has on stakeholders in their assessments and decision-making. In addition, we have developed grids that reflect regional materiality concerns. The completed matrices reflect the following regions: ■ Americas ■ Asia Pacific ■ Europe Global Materiality Regional Assessment Results | Americas Materiality 0 .10 0 .10 0 .15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.55 0.60 0 .15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.55 INFLUENCE ON STAKEHOLDERS HUMAN RIGHTS RESPONSIBLE WATER SOURCING & CONSUMPTION H E A LT H & WELLNESS BIODIVERSITY COMMUNITY ENGAGEMENT AIR QUALITY MANAGEMENT SUSTAINABLE GROWTH WASTE MANAGEMENT SUPPLY CHAIN SUSTAINABILITY EMPLOYEE EXPERIENCE COMBATING CLIMATE CHANGE ENERGY EFFICIENCY & SOURCING RENEWABLE ENERGY LIVING S A F E LY PRODUCT INNOVATION & STEWARDSHIP CIRCULAR ECONOMY INCLUSION & DIVERSITY RELEVANCE TO COMPANY ENVIRONMENTAL, ECONOMIC, AND SOCIAL IMPACTS  Product Sustainability  Environmental Sustainability  Social Sustainability 0 .10 0 .10 0 .15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.55 0.60 0 .15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.55 INFLUENCE ON STAKEHOLDERS RELEVANCE TO COMPANY ENVIRONMENTAL, ECONOMIC, AND SOCIAL IMPACTS HUMAN RIGHTS RESPONSIBLE WATER SOURCING & CONSUMPTION H E A LT H & WELLNESS BIODIVERSITY COMMUNITY ENGAGEMENT AIR QUALITY MANAGEMENT SUSTAINABLE GROWTH WASTE MANAGEMENT SUPPLY CHAIN SUSTAINABILITY EMPLOYEE EXPERIENCE COMBATING CLIMATE CHANGE ENERGY EFFICIENCY & SOURCING RENEWABLE ENERGY LIVING S A F E LY PRODUCT INNOVATION & STEWARDSHIP CIRCULAR ECONOMY INCLUSION & DIVERSITY