2021 Owens Corning Sustainability Report | Reducing Our Environmental Footprint | Combating Climate Change | 148 Scope 1 & 2 Emissions Short-term Strategies ■ Continue converting the blowing agent used in manufacturing our XPS foam products. ■ Reduce Scope 2 emissions through additional Virtual Power Purchase Agreements (VPPAs). ■ Drive innovation within our research and development portfolio to reduce emissions from input materials through circular innovations. Medium-term Strategies ■ Consider additional renewable energy opportunities on a global basis, including longer-term agreements. ■ Continue converting the blowing agent used in manufacturing our XPS foam products. ■ Switch to 100% renewable electricity. ■ Improve energy efficiency by 20% by 2030, enabled through Total Productive Maintenance and improvements to our production processes. ■ Ensure systematic knowledge sharing across our network of facilities. ■ Continue to innovate within our research and development portfolio to reduce emissions from input materials through circular innovations. Long-term Strategies ■ Drive innovation within our research and development portfolio to enable conversion from fossil fuel to carbon-neutral and renewable energy to power our processes. ■ Drive innovation through research and development on future XPS foam products to bring Global Warming Potential (GWP) of blowing agent blends down even further. ■ Work to develop and implement last-mile solutions for remaining operational emissions through exploration of new equipment, processes, and still-emerging renewable fuel technologies. Scope 3 Emissions Short-term Strategies ■ Create sustainability governance framework/ infrastructure within the sourcing and supply chain organizations to promote collaboration and visibility of sustainable sourcing impact. ■ Collaborate between the sourcing and sustainability organizations to develop a tool to track progress towards value chain decarbonization. ■ Leverage the Citi Sustainable Supply Chain Finance program to collaborate with suppliers and incentivize emissions reductions. ■ Realize Scope 3 improvements from new PPAs that enable sourcing 100% renewable electricity, which reduces Scope 3 emissions from fuel- and energy-related activities by decreasing emissions generated from the extraction, transportation and processing of fuel sources used to produce electricity. Medium-term Strategies ■ Achieve 2030 Science-Based Target of reducing absolute Scope 3 emissions by 30% since base year of 2018. ■ Continue to realize Scope 3 improvements from sourcing 100% renewable electricity. Long-term Strategies ■ Continue to transparently engage with suppliers to reduce value chain emissions wherever feasible. Our Climate Change Roadmap Owens Corning’s plans to reduce emissions is based on the following short-, medium-, and long-term strategies: