H1 2021 Results and Outlook

| RECORD BUSINESS INCOME AND EBITDA 11/ H1-2021/ H1-2021/ H1-2019 H1-2020 H1-2021 €m H1-2020 H1-2019 Operating income 1,638 827 2,376 +187% +45.1% Non-operating costs (168) (142) (82) Disposal gains (losses) and impacts resulting from changes in Group structure (16) (22) (53) Asset write-downs and other (201) (712) (97) Business income 1,253 (49) 2,144 n.s. +71.1% Operating income 1,638 827 2,376 +187% +45.1% Operating depreciation and amortization 947 950 954 Non-operating costs (168) (142) (82) EBITDA 2,417 1,635 3,248 +98.7% EBITDA margin (as a % of sales) 11.2% 9.2% 14.7% +550 bps +34.4% +350 bps H1 2021 RESULTS AND OUTLOOK SAINT-GOBAIN

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