2021 Owens Corning Sustainability Report | Expanding Our Social Handprint | Community Engagement | 233 COMMUNITY ENGAGEMENT In this chapter: ƒ 2030 GOALS ƒ OUR APPROACH ƒ INITIATIVES ƒ PERFORMANCE ƒ GOING FORWARD Sustainability is rooted in the idea that people deserve the opportunity to enjoy a high quality of life. That’s why we consistently seek to engage with communities around the world, especially in the places where our people live and work. It’s an idea that is very much in keeping with our values — especially the idea that we are dedicated to caring for our people and our communities. While financial support is an essential element of our approach to corporate citizenship, we are proud of the fact that our employees are very much at the center of our efforts around the world. Their volunteerism is a key driver of our community engagement efforts, and in many ways, they guide our philanthropic endeavors. Our community engagement efforts align with the following UN SDGs: Sustainability Materiality Definition: Owens Corning strives to contribute to thriving communities, where we work, where we live, and where we have the potential to make a positive impact. The social data in this chapter marked with a + sign were independently assured to a moderate level by SCS Global Services. The social data in this chapter marked with a ^ sign were independently assured to a high level by SCS Global Services. For more information on the assurance process see About the Report, and for our verification statement please see Appendix F . We have committed over $6.5 million through multi-year agreements for work related to racial equity, including over $2.4 million contributed by the end of 2021. Photo submitted by: Yana Liu | Shanghai, China Global Finance Operations Reporting (GFOR) Caring Day

Owens Corning Sustainability Report - Page 233 Owens Corning Sustainability Report Page 232 Page 234