WORKFORCE DATA SAFETY DATA Appendix B 2021 Owens Corning Sustainability Report | Appendices | 303 Contractor Safety Statistics + BUSINESS METRIC 2018 2019 2020 2021 Building Materials Asia Pacific Recordables 1 - - - Total Labor Hours 191,203 245,896 93,664 283,696 Number LWD Cases 1 - - - LWIR 1.05 - - - RIR 1.05 - - - Fatalities - - - - Composites Recordables 3 - - - Total Labor Hours 3,855,821 208,622 203,206 275,040 Number LWD Cases 1 - - - LWIR 0.05 - - - RIR 0.16 - - - Fatalities - - - - Insulation Recordables 3 2 1 2 Total Labor Hours 408,086 353,232 235,705 223,279 Number LWD Cases 1 - - - LWIR 0.49 - - - RIR 1.47 1.13 0.85 1.79 Fatalities - - - - Roofing Recordables 1 1 - 1 Total Labor Hours 150,216 135,407 98,119 93,277 Number LWD Cases 1 - - - LWIR 1.33 - - - RIR 1.33 1.48 - 2.14 Fatalities 1 - - - TOTAL Recordables 8 3 1 3 Total Labor Hours 4,605,326 943,157 630,694 875,292 Number LWD Cases 4 - - - LWIR 0.17 - - - RIR 0.35 0.64 0.32 0.69 Fatalities 1 - - - 2018 2019 2020 2021 Contractor Labor Hours 4,605,326 943,157 630,694 875,292 Lost Work Day Cases 4 - - - LTIFR Contractors 0.87 - - - Data Coverage: % of total contractors 100 100 100 100 Contractor Lost-Time Injury Frequency Rate (LTIFR) +