Saint-Gobain // Universal Registration Document 2021

Record growth, earnings and margin ■ Record organic growth up 18.4% on 2020 and 13.8% on 2019: outperformance (volumes up 6.2% on 2019) on very dynamic underlying markets and with an acceleration in prices (up 10.3% in Q4), generating a positive price-cost spread of €60 million in 2021 ■ Record operating income and margin: up 60% on 2020 and 39% on 2019 (1) at €4,507 million; margin at 10.2% (a rise of 250 bps over the three years of transformation) ■ Record recurring net income of €2,815 million, up 91% on 2020 and 47% on 2019 ■ Free cash flowup 56%on 2019 at €2,904million, with a conversion ratio of 53% ■ Strong value creation, with ROCE at a record high of 15.3% (versus 11.1% in 2019) ■ Record shareholder return at €1.2 billion in 2021 through share buybacks and dividends; TSR(2) at 69% for the year. Dividendof €1.63 (up 23%) recommended for 2021, and commitment to buy back at least €400 million in shares in 2022 ■ Continued progress in sustainability performance, with a further reduction in scope 1 and 2 CO2 emissions in 2021 despite the sharp 11.7% year-on-year increase in volumes, representing a reduction of 23% on 2017 ■ Successful launch of the “Grow & Impact” plan, with first-year results in line with or ahead of all objectives The 2021 consolidated financial statements were approved and adopted by Saint-Gobain’s Board of Directors at its meeting of February 24, 2022. The consolidated financial statements were audited and certified by the statutory auditors. (1) Like-for-like (2) TSR: Total Shareholder Return for Saint-Gobain in 2021, including the reinvestment of the dividend in Saint-Gobain stock. 2021 KEY FIGURES Record results vs 2019(1) €44,160m Sales €4,507m Operating income + 13,8% + 39% vs 2019 €2,815m Recurring net income 15.3% ROCE + 47% 11.1% ROCE

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