2021 Owens Corning Sustainability Report | Expanding Our Social Handprint | Inclusion & Diversity | 228 INCLUSION & DIVERSITY PERFORMANCE A diverse workforce provides us with the different experiences and unique perspectives needed to deliver better results for our customers. That’s why we work to increase gender equality in the workforce and expand diversity in our leadership. In addition, greater diversity helps colleagues from all walks of life envision their own career paths. Women in Leadership Several years ago, we formalized our commitment to putting women in leadership roles by establishing a target for female representation of 25% in all leadership levels. We reached this target in 2019 and continue our efforts to maintain and increase this percentage. This effort is aligned with our 2030 goal to have 35% of global mid-level leader, director, and vice president roles filled by women. + We are also working to improve women’s representation across our business, especially in operations, manufacturing, and our commercial sales organizations, which have long been customarily male domains. We are undertaking pilot programs to help us understand what we can do differently so women can thrive in their work. One program, being implemented in our Composites business with an eye toward expanding into our other businesses, engages women in discussions through scripted questions designed to gather insights into their experiences at work. Percentage of Female Leaders 2030 GOAL: 35% Percentage of Females in Successor Pool 2030 GOAL: >35% Photo submitted by: Susan Burkett | Toledo, Ohio, U.S. 30% 2021 2018 BASE YEAR 25% 26% 2019 28% 2020 27% 2021 2018 BASE YEAR 24% 25% 2019 25% 2020

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