#1H1 2021 RESULTS AND OUTLOOK JULY 30, 2021 كهمى SAINT-GOBAIN#201 H1 2021 HIGHLIGHTS 02 H1 2021 RESULTS 03 STRATEGY 04 OUTLOOK SAINT-GOBAIN#3I H1 2021 HIGHLIGHTS: NEW RECORDS FOR ALL PERFORMANCE INDICATORS » +11.9% in organic growth versus H1 2019 and +27.4% versus H1 2020: >> +7.6% in volumes on H1 2019 » +4.3% in prices on H1 2019 (+3.9% on H1 2020) >> +53% in like-for-like operating income versus H1 2019 to €2,376m 57 » 10.7% operating margin in H1 2021 versus 7.6% in H1 2019 >> +34% EBITDA on H1 2019 to €3,248m and EBITDA margin at 14.7% >> +60% in recurring net income on H1 2019 to €1,506m >> +47% in free cash flow on H1 2020 to €2,461m, with a conversion ratio of 84% 3/ Exceptional mobilization of all Saint-Gobain teams H1 2021 RESULTS AND OUTLOOK рота ESS لمى SAINT-GOBAIN#4I SUCCESS OF "TRANSFORM & GROW": THE GROUP IS ON A NEW LONG- TERM TRAJECTORY » Enhanced growth and profitability profile: Divestment of under-performing assets: €5.3bn in sales, ~2% in EBITDA margin Acquisition of fast-growing and profitable assets: ~€1.5bn in sales, ~20% in EBITDA margin » Agile, collaborative and efficient organization: Dedicated teams empowered at country level Numerous synergies benefiting customers via integrated, differentiated solutions "Transform & Grow" objectives significantly exceeded, with the operating margin at 10.4% over the last 12 months (versus a target of >100 bps compared to the 7.7% of 2018) 4/ ENHANCED GROWTH AND PROFITABILITY PROFILE DRIVEN BY DECARBONIZATION SOLUTIONS H1 2021 RESULTS AND OUTLOOK SAINT-GOBAIN#501 H1 2021 HIGHLIGHTS 02 20 H1 2021 RESULTS A. GROUP B. SEGMENTS 03 STRATEGY 04 OUTLOOK SAINT-GOBAIN#6| RECORD ORGANIC GROWTH IN H1 17,764 (€m) 2021/2020 +27.4% like-for-like +3.9% -2.6% -0.2% +23.5% +24.6% 2021/2019 +11.9% like-for-like ■ Organic growth of 11.9% versus H1 2019 Exchange rates: depreciation of the US dollar, the Brazilian real and other emerging country currencies H1-2020 sales Exchange Structure Price Volumes rates 6/ 22,131 (€m) H1-2021 sales Structure: continued optimization of Group profile (divestments and acquisitions) H1 2021 RESULTS AND OUTLOOK SAINT-GOBAIN#7SEQUENTIAL ACCELERATION IN ORGANIC GROWTH VERSUS 2019 Quarterly organic growth vs 2019 -4.9% -19.2% +9.0% +6.4% +3.2% Q1-2020/ Q1-2019 Q2-2020/ Q2-2019 Q3-2020/ Q3-2019 Q4-2020/ Q4-2019 Q1-2021/ Q1-2019 7/ +14.7% Q2-2021/ Q2-2019 +9.0% in Q1, o/w volumes +5.8% +14.7% in Q2, o/w volumes +9.4% with a positive +3% calendar impact H1 2021 RESULTS AND OUTLOOK SAINT-GOBAIN#8ACCELERATION OF PRICE INCREASES IN A FAR MORE INFLATIONARY ENVIRONMENT Group total price increase excluding Distribution (Europe): +4.3% in H1 2021, of which +5.5% in Q2 2021 8/ +2.6% +1.8% +0.6% +0.2% +0.9% Q1-2020/ Q2-2020/ Q3-2020/ Q1-2019 Q2-2019 Q3-2019 Q4-2020/ Q4-2019 Q1-2021/ Q1-2020 +5.1% Inflation in raw material and energy costs of >€1bn expected for the year, versus previous estimates of between €300m- €400m in February and €600m-€700m in April 2021 Q2-2021/ Q2-2020 ■ Positive price-cost spread expected for the full year H1 2021 RESULTS AND OUTLOOK SAINT-GOBAIN#9RECORD OPERATING INCOME IN H1 2021, UP 53% LIKE-FOR-LIKE VERSUS H1 2019 (Operating income in Єm and margin in %) 9/ 1,638 827 +45% actual vs 2019 2,376 7.6% 4.7% 10.7% H1-2019 H1-2020 H1-2021 Strong leverage effect from sales volumes 2 ■ Positive price-cost spread ~ +€125m versus H1 2020 Additional savings of €100m in H1 2021 to lower the break-even point of certain activities impacted by the coronavirus, in addition to €50m in H2 2020 ■ Reinforcement of the operational excellence program Low level of overheads thanks to discretionary savings ■ Positive structural impact of "Transform & Grow" H1 2021 RESULTS AND OUTLOOK SAINT-GOBAIN#10THE "TRANSFORM & GROW" OBJECTIVE OF A 100 BPS MARGIN IMPROVEMENT HAS BEEN ACHIEVED EARLIER THAN EXPECTED AND SIGNIFICANTLY EXCEEDED Change in operating margin 10/ 2018 7.7% Portfolio +60 bps Divestment of under-performing assets, acquisition of fast-growing and profitable assets Cost structure +60 bps T&G cost savings Volumes & mix +60 bps Volume growth, High Performance Solutions mix effect, currency effect Normalized last 12 months (at end-June 2021) 9.5% Exceptional +90 bps Price/cost spread, discretionary savings, post-coronavirus volume catch-up effects Published last 12 months 10.4% Operating margin at 10.0% in H2 2020 and 10.7% in H1 2021 (at end-June 2021) H1 2021 RESULTS AND OUTLOOK SAINT-GOBAIN#11| 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#12RECORD RECURRING NET INCOME AND RECURRING EPS 12/ H1-2019 H1-2020 H1-2021 H1-2021/ H1-2020 H1-2021/ H1-2019 €m Business income 1,253 (49) 2,144 n.s. +71.1% Net financial expense (250) (234) (213) Average cost of gross debt (at June 30) 2.2% 2.0% 2.0% Dividends received from investments 28 34 0 Income tax (318) (183) (593) Net attributable income 689 (434) 1,298 Recurring net income 944 272 1,506 n.s. +59.5% Half-year recurring EPS (€) 1.74 0.51 2.85 n.s. +63.8% H1 2021 RESULTS AND OUTLOOK SAINT-GOBAIN#13| RECORD FREE CASH FLOW OF €2.5bn, UP 47% (€m) 2,915 (213) 2,461 +47% (593) +662 (310) FCF conversion: 84% H1-2021 EBITDA* Finance costs Tax Capital expenditure excl. additional capacity** Change in WCR over a 12-month period Free cash flow H1-2020 €1,299m 13/ * ** FCF conversion: 129% EBITDA less depreciation of right-of-use assets: €3,248m - €333m = €2,915m (versus €1,299m in H1-2020) Capital expenditure = €431m, including €121m in additional capacity investments linked to organic growth H1 2021 RESULTS AND OUTLOOK €1,678m SAINT-GOBAIN#14DECREASE IN NET DEBT (€bn) Net debt Shareholders' equity Rating: BBB/Baa2 Net debt/shareholders' equity Net debt/EBITDA* * EBITDA over a 12-month period ** before IFRS 16: estimates 14/ 19.5 18.4 6.7 4.5 06-2020 19.3 18.2 9.8 7.6 06-2021 06-2020 before IFRS 16** 06-2021 after IFRS 16 36% 23% 54% 39% 2.0 0.9 2.4 1.3 H1 2021 RESULTS AND OUTLOOK SAINT-GOBAIN#1501 H1 2021 HIGHLIGHTS H1 2021 RESULTS 02 A. GROUP B. SEGMENTS 03 STRATEGY 04 OUTLOOK SAINT-GOBAIN#16I HIGH PERFORMANCE SOLUTIONS: SLIGHT GROWTH IN SALES VERSUS H1 2019 AND SEQUENTIAL MARGIN IMPROVEMENT 16/ 3,102 -5.1% Sales (Єm) 2021/2020 +23.6% 2021/2019 +2.0% like-for-like like-for-like +23.9% +18.6% +0.1% -0.3% 3,679 Operating income (Єm) and margin (%) 502 231 496 13.0% 7.4% 13.5% H1-2020 sales Exchange Structure Price Volumes H1-2021 sales H1-2019 H1-2020 H1-2021 rates Change in sales on a like- for-like basis 2021/2020 2021/2019 Mobility +31.2% -3.3% Other ind. +19.3% +5.5% H1 2021 RESULTS AND OUTLOOK SAINT-GOBAIN#17I NORTHERN EUROPE: GROWTH IN SALES DRIVEN BY RENOVATION AND A GOOD MARGIN LEVEL 6,090 Sales (Єm) 2021/2020 +19.9% like-for-like +3.7% +1.5% +0.4% 2021/2019 +9.9% like-for-like +16.2% +21.8% 7,418 Operating income (Єm) and margin (%) 460 256 585 6.0% 4.2% 7.9% H1-2020 sales Exchange Structure Price Volumes H1-2021 sales H1-2019 H1-2020 H1-2021 rates Nordics UK Germany Change in sales on a like- 2021/2020 +7.8% +46.7% +14.3% for-like basis 2021/2019 +11.8% +6.2% +6.8% 17/ H1 2021 RESULTS AND OUTLOOK SAINT-GOBAIN#18I SOUTHERN EUROPE - MIDDLE EAST & AFRICA: STRONG SALES MOMENTUM IN THE RENOVATION MARKET AND RECORD MARGIN 18/ Sales (Єm) 2021/2020 +34.7% 2021/2019 +13.1% like-for-like like-for-like +31.8% +31.6% -0.7% -2.4% +2.9% Operating income (Єm) and margin (%) 350 680 99 5.668 7,457 5.0% 1.7% 9.1% H1-2020 sales Exchange Structure Price Volumes H1-2021 sales H1-2019 H1-2020 H1-2021 rates France Spain-Italy Change in sales on a like- for-like basis 2021/2020 +37.2% +30.3% 2021/2019 +14.4% +5.5% H1 2021 RESULTS AND OUTLOOK SAINT-GOBAIN#19| AMERICAS: SHARP GROWTH IN SALES AND RECORD MARGIN Sales (Єm) 2021/2020 +32.0% 2021/2019 +25.2% Operating income (Єm) and margin (%) 19/ 2,670 -12.4% like-for-like like-for-like +21.4% +22.1% +10.6% +2.5% 3,260 250 190 555 9.0% 7.1% 17.0% H1-2020 sales Exchange Structure Price Volumes H1-2021 sales H1-2019 H1-2020 H1-2021 rates North America Latin America Change in sales on a like- for-like basis 2021/2020 2021/2019 +26.1% +19.9% +50.1% +37.1% H1 2021 RESULTS AND OUTLOOK SAINT-GOBAIN#20| ASIA-PACIFIC: STRONG SALES AND MARGIN GROWTH Sales (Єm) 2021/2020 +40.3% like-for-like 2021/2019 +16.2% like-for-like +36.6% +33.6% -6.8% 655 H1-2020 sales Exchange 20/ rates +3.7% +0.1% 875 Operating income (Єm) and margin (%) 85 46 98 9.5% 7.0% 11.2% Structure Price Volumes H1-2021 sales H1-2019 H1-2020 H1-2021 H1 2021 RESULTS AND OUTLOOK SAINT-GOBAIN#2101 H1 2021 HIGHLIGHTS 02 H1 2021 RESULTS 03 STRATEGY 04 OUTLOOK SAINT-GOBAIN#22SAINT-GOBAIN LEVERAGED STRONG TAILWINDS IN H1 2021... Acceleration on growth markets Unmatched solutions offering Renovation in Europe New build in the US Urbanization in emerging countries 22/ +7.6% in volume H1 2021 vs. H1 2019 1. Sustainable solutions contribute to energy and environmental transition or to final users' and installers' well-being and comfort H1 2021 RESULTS AND OUTLOOK ~70% of Group sales in sustainable solutions1 SAINT-GOBAIN#23...WITH BEST-IN-CLASS EXECUTION... Agile organization Constant focus on price/cost spread Supply chain optimization for raw materials availability €150m Post-coronavirus savings adaptation measures1 Customer satisfaction ☑Operational excellence Increase in 50 Customer NPS2 in +3pts Distribution +9.5% productivity in Distribution³ Award-winning customer service in Vietnam in 2021 13 Plants opened in the last 12 months FASTBOU como só LE CONG BO dców w TORS) CÔNG TY VẬT LIỆU NAY DU KY THI NAM HOẠT +12% Increase in plant productivity 1. 2. €150m savings over the last 12 months until end of June 2021, as part of post-coronavirus adaptation measures to lower the break-even point of certain businesses H1 2021 Distribution France customer NPS: Net Promoter Score 23/ 3. European distribution excluding German divestment H1 2021 vs. H1 2019 H1 2021 RESULTS AND OUTLOOK SAINT-GOBAIN#2424/ ...WHILE SHAPING OUR FUTURE GROWTH... Improved growth and profitability profile Acquisitions CHR/SO PANOFRANCE Innovative & digital solutions Patented cement-free weberod webercol flex éco La colle à carrelage qui prend soin de l'environnement... et des artisans ! *VertetFier +29% sales mortar solution² weber Webercol Flex Eco CHEMICAL SOLUTIONS FOR THE CONSTRUCTION MATERIALS INDUSTRY Graham The Plumbers' Merchant Divestments¹ LAPEYRE LA PLATAFORMA DE LA CONSTRUCCION PAM SAINT-GOBAIN 管道系统化解决方案 raab karcher Netherlands ISCESUפה GLASSOLUTIONS SAINT-GOBAIN Germany 123 1. Deals signed or closed in H1 2021 2. H1 2021 vs. H1 2019 in France 3. Dahl Nordics (Norway, Sweden, Denmark) in H1 2021 Glasroc The Jo Jo es vitish Gypsum Glasroc Glasroc X plasterboard Dedicated solution for timber frame buildings H1 2021 RESULTS AND OUTLOOK 347 47.913 ke +4 pts In E-commerce sales in the Nordics >30% of sales³ SAINT-GOBAIN#25| ... AND ROLLING OUT OUR ESG ROADMAP CLIMATE CHANGE CIRCULAR ECONOMY 1. 2. 25/ 3. INCLUSIVE GROWTH 1,000 EMPLOYEE INITIATIVES Internal Carbon Fund 1ST NET ZERO CARBON gypsum plant worldwide MEMBER OF VALOBAT eco-organism for circularity in the building sector in France POINT.P roadshow to raise awareness on biosourced materials 2,000 work-study positions opened for young professionals in France $1,500 per employee from our US employee relief fund¹ HEALTH AND SAFETY ACROSS THE ENTIRE VALUE CHAIN EMPLOYEE ENGAGEMENT AND DIVERSITY 2 BUSINESS ETHICS HICE global indicator to measure occupational health VACCINATION against COVID-19 offered to employees in Saint-Gobain premises³ 38% women members of the Executive Committee 60,000 employee shareholders 50K VIEWS of Principles of Conduct and Action Day 85% completion of anti-harassment campaign in the US For employees suffering hardship HICE: Health Indicator for Occupational Exposure Wherever permitted by health authorities H1 2021 RESULTS AND OUTLOOK SAINT-GOBAIN#26SAINT-GOBAIN IS AT THE HEART OF GLOBAL CHALLENGES 70% x3 +2bn of the global economy committed to carbon neutrality UN December 2020 increase in resource consumption in the last 50 years urban population in emerging markets By 2050, UN projections 2015-2050 26/ MAKING THE WORLD A BETTER HOME H1 2021 RESULTS AND OUTLOOK SAINT-GOBAIN#27OUR SOLUTIONS REDUCE CO2 EMISSIONS IN CONSTRUCTION ENERGY-EFFICIENT RENOVATION Supported by stimulus packages and raise in environmental awareness CHALLENGE OUR ACTIONS 27/ Sove SP -55% greenhouse gas emissions by 2030 in European Union ENCOMAY 30/100 CE Compared to 1990 pre.formance Pre.formance Energy performance improvement in Germany with 2-D offsite: 50% reduction in CO2 emissions vs. traditional homes Renov❜up Program launched in association with start-ups and SMEs in France to accelerate innovative solutions for building renovation ~50% Group sales in renovation market H1 2021 RESULTS AND OUTLOOK SAINT-GOBAIN#2828/ OUR SOLUTIONS ARE RESOURCE-EFFICIENT RESOURCE EFFICIENCY Supported by light construction & circular economy CHALLENGE x3 increase in natural resources consumption 1970-2017 consumption increase vs. x2 population increase ISOVER RECYCLING, la première offre pour recycler OUR ACTIONS ISOVER Glass wool recycling Insulation material recycling service la laine de verre usagée des bâtiments Isover Kitting solutions for light construction Plasterboards, metal framing and accessories to reduce on-site waste and improve productivity ~40% Group sales in light construction H1 2021 RESULTS AND OUTLOOK SAINT-GOBAIN#2929/ OUR SOLUTIONS SUPPORT EMERGING COUNTRIES GROWTH URBANIZATION IN EMERGING COUNTRIES Supported by Saint-Gobain's solutions & global footprint CHALLENGE 000 OUR ACTIONS 20015 PPPP +2bn urban population in emerging countries +90% growth in Saint-Gobain's EV sales (17-21 CAGR) ~20% of Saint-Gobain Mobility sales on EV market by end-2021 Urban inhabitants in emerging countries by 2050 - UN projections 2015-2050 Prioritize plant openings in emerging countries ~20% Group sales in emerging countries H1 2021 RESULTS AND OUTLOOK SAINT-GOBAIN#30OUR SOLUTIONS HELP DECARBONIZE INDUSTRIAL PROCESSES INDUSTRY DECARBONIZATION Supported by Saint-Gobain's solutions & global footprint CHALLENGE OUR ACTIONS 1. Climate Watch 30/ 30% Bioprocessing solutions Recyclable single-use systems to avoid water & chemicals usage Share of manufacturing industry emissions out of total CO2 emissions1 Refractories for glass furnaces 25% reduction in greenhouse gas thanks to design improvements and cruciform use Targeting net zero carbon by 2050 H1 2021 RESULTS AND OUTLOOK SAINT-GOBAIN#3101 H1 2021 HIGHLIGHTS 02 20 H1 2021 RESULTS 03 STRATEGY 04 OUTLOOK SAINT-GOBAIN#32H2 2021 OUTLOOK High Performance Solutions: continued sequential improvement in industrial markets, excluding automotive in Europe. Businesses related to customer investment should rally steadily, although are expected to remain down on the good level recorded in 2018 Europe: continued outperformance in construction led by renovation and support from stimulus programs, albeit with a high comparison basis for the summer months and in December, when trade professionals are expected to take more holiday than in 2020 ■ Americas: market growth, particularly residential construction, in both North and Latin America ■ Asia-Pacific: market growth with continued good momentum in China, ongoing uncertainty in India and significant health-related disruptions in South-East Asia 32/ H1 2021 RESULTS AND OUTLOOK SAINT-GOBAIN#332021 PRIORITIES Accelerate growth as leader in light and sustainable construction, offering decarbonization solutions for construction and industry Outperformance versus the market thanks to an agile organization focused on its customers in each country and end market A range of integrated, differentiated and innovative solutions to help our customers decarbonize Further ESG progress with the deployment of our 2030 roadmap towards carbon neutrality in 2050 Continued optimization of the Group's profile (divestments and acquisitions) and integration of Chryso, leading global player in construction chemicals 33/ H1 2021 RESULTS AND OUTLOOK SAINT-GOBAIN#342021 PRIORITIES Continue our initiatives focused on profitability and performance: maintain robust margins and strong free cash flow generation Constant focus on the price-cost spread amid strong inflation in raw material and energy costs Reduction in costs as part of post-coronavirus adaptation measures ■ Reinforcement of the operational excellence program ■ Maintaining the structural improvement in operating working capital requirement ■Capital expenditure of around €1.5 billion and ongoing digital transformation ■Continued reduction in non-operating costs 34/ For full-year 2021, the Group is now targeting a very strong increase in operating income to a new all-time high, with like-for-like operating income in second-half 2021 close to the previous record of second-half 2020 H1 2021 RESULTS AND OUTLOOK SAINT-GOBAIN#35AN EXPERIENCED AND DIVERSE MANAGEMENT TEAM EMPOWERED TO DRIVE RESULTS 35/ SANTHANAM B. Asia-Pacific Patrick DUPIN Northern Europe Thierry FOURNIER Southern Europe & MEA Javier GIMENO Cordula GUDDUSCHAT Latin America Marketing Anne HARDY Innovation Benoit d'IRIBARNE Industrial Performance David MOLHO High Performance Solutions Benoit BAZIN Chief Executive Officer SREEDHAR N. Chief Financial Officer 38% % women 50% % international members 18 Claire PEDINI Laurence PERNOT Human Resources & ESG Communications Mark RAYFIELD North America Ursula SORITSCH-RENIER Chief Digital Officer Maud THUAUDET Strategy Antoine VIGNIAL Corporate Secretary H1 2021 RESULTS AND OUTLOOK average years of experience in Saint-Gobain SAINT-GOBAIN#36| IMPORTANT DISCLAIMER - FORWARD-LOOKING INFORMATION This presentation contains forward-looking statements with respect to Saint-Gobain's financial condition, results, business, strategy, plans and outlook. Forward-looking statements are generally identified by the use of the words "expect", "anticipate", "believe", "intend", "estimate", "plan" and similar expressions. Although Saint-Gobain believes that the expectations reflected in such forward-looking statements are based on reasonable assumptions as at the time of publishing this document, investors are cautioned that these statements are not guarantees of its future performance. Actual results may differ materially from the forward-looking statements as a result of a number of known and unknown risks, uncertainties and other factors, many of which are difficult to predict and are generally beyond the control of Saint-Gobain, including but not limited to the risks described in the "Risk Factors" section of Saint-Gobain's Universal Registration Document available on its website (www.saint-gobain.com). Accordingly, readers of this document are cautioned against relying on these forward-looking statements. These forward-looking statements are made as of the date of this document. Saint-Gobain disclaims any intention or obligation to complete, update or revise these forward-looking statements, whether as a result of new information, future events or otherwise. This presentation does not constitute any offer to purchase or exchange, nor any solicitation of an offer to sell or exchange securities of Saint-Gobain. No representation or warranty, express or implied, is made by Saint-Gobain or its managers, corporate officers, employees, contractors, representatives or advisors as to the accuracy or completeness of the information or opinions contained in this presentation. 36/ H1 2021 RESULTS AND OUTLOOK SAINT-GOBAIN#37APPENDICES SAINT-GOBAIN#38H1 2021 KEY FIGURES change/H1-2020 actual change/H1-2019 like-for-like like-for-like actual +24.6% +27.4% +2.1% +11.9% Sales €22.1bn Operating income €2,376m +187% +193% +45.1% +52.7% Operating margin 10.7% +600 bps +310 bps EBITDA €3,248m x 2 +34.4% EBITDA margin 14.7% +550 bps +350 bps Recurring net income €1,506m +59.5% x 5.5 Free cash flow €2,461m +46.7% 38/ H1 2021 RESULTS AND OUTLOOK x 3.6 ไ SAINT-GOBAIN#39BUILDING DISTRIBUTION EUROPE: RECORD MARGIN AT 6.7% IN H1 2021 Sales (Єm) Operating income (Єm) and margin (%) 7,558 +1.3% H1-2020 sales Exchange 39/ rates 2021/2020 +28.1% 2021/2019 +13.7% like-for-like like-for-like +24.7% +26.8% -2.6% +3.4% 9,584 Structure Price Volumes H1-2021 sales H1 2021 RESULTS AND OUTLOOK 349 638 137 3.6% 1.8% 6.7% H1-2019 H1-2020 H1-2021 SAINT-GOBAIN#40OPERATING INCOME AND INDUSTRIAL ASSETS BY SEGMENT Breakdown of H1 2021 Operating income Asia-Pacific 4% Industrial assets at June 30, 2021 Asia-Pacific Americas 23% Southern Europe - ME & Africa 40/ HPS HPS 7% 21% 22% Americas 17% 24% 28% Northern Europe 27% 27% Southern Europe - ME & Africa Northern Europe H1 2021 RESULTS AND OUTLOOK SAINT-GOBAIN#41| GROUP SALES AND OPERATING INCOME BY GEOGRAPHIC AREA H1 2021 Sales H1 2021 Operating income North America France France 15% North America 19% Latin 27% 24% America 6% Asia- 7% Pacific Eastern 7% Europe, Africa & ME 38% Latin 9% America Other Western 30% 9% European countries 9% Asia-Pacific 41/ Other Western European countries H1 2021 RESULTS AND OUTLOOK Eastern Europe, Africa & ME SAINT-GOBAIN#42OUR GROWTH STRATEGY: ROLL OUT SAINT-GOBAIN SOLUTIONS 42/ Residential new-build - USA Non-residential - India Schools and hospitals - Nordics DESIGN PRODUCE DISTRIBUTE Saint-Gobain is present throughout the value chain Co-development Industrial partnerships Consulting and logistics BIM Building science Off-site manufacturing Training Charks Multi-family residential - Eastern Europe Sustainable mobility H1 2021 RESULTS AND OUTLOOK Intermediation Recycling Installer CLIENT Craftsman Large Consumer client Renovation - France SAINT-GOBAIN#43OUR END-TO-END SOLUTIONS FOR ENERGY RENOVATION, DIGITALLY ENABLED Energy-efficient renovation of a single-family house in France 100% solutions manufactured or distributed by Saint-Gobain +150% "Energy renovation" key words web search1 €677bn Annual European building renovation market³ -88%5 Potential maximum yearly 1 + energy expense reduction clim Mechanical ventilation 88% of people spend more time at home since the pandemic² A 72% of buildings in Europe to be renovated by 2050 +150% Visitors on Saint-Gobain renovation website4 x2 objective Annual renovation rate in the EU 1 2 3 5 2 ISOver Glass wool, wood fiber LA PLATEFORME DU BATIMENT 3 weber Placo External thermal insulation SAINT-GOBAIN ADFORS POINT.P composite systems (ETICS) كري SAINT-GOBAIN Double-glazed windows Glass 5 CEDEO Heat pump, thermodynamic boiler, water radiators 6 +4 classes Energy performance analysis 6 LA MAISON SAINT-GOBAIN 43/ Saint-Gobain, the one-stop-shop for sustainable and light construction 1. Google trends France 12 months rolling vs. previous period 2. USP survey 3. Euroconstruct 2021-19 countries 4. H1 2021 vs. H1 2019 5. Calculations for a single-family house built between 1948 and 1974 based on the French report to the European Commission H1 2021 RESULTS AND OUTLOOK Intermediation with end customer SAINT-GOBAIN#44| TRUSTED END-TO-END SOLUTIONS FOR NON-RESIDENTIAL BUILDINGS Renovation of a hospital 100% solutions manufactured or distributed by Saint-Gobain 2x Expected increase in people over 60 by 20501 2/3 Share of world population in urban areas by 20502 المسلية 2bn/year Avg EIB investment in healthcare infrastructure and innovation³ +3.6% Expected 5y growth in surgeries performed4 340kWh Average yearly electricity use /m in a hospital in the US5 3% Target for yearly public building renovation 1 clim Air quality -20% 6 Energy consumption Example of Montfermeil renovation in France - also 2 Gyproc includes savings enabled by consumption monitoring through captors Habito Health, shock 3 Placo 8 Ecophen SAINT-GOBAIN H 5 1 2 4 ROPORS 3 H7 6 weber SAINT-GOBAIN 6 7 Sage-Gla 8 BIM 5 XRoc SHEERFILL resilience and acoustic performance: partitions, ceilings, and X-ray plasterboards Visual and thermal comfort: architectural membranes, Sage electrochromic glass Upstream project assistance: prescription, BIM -11% 6 Potential reduction in length of patient stays Saint-Gobain, the one-stop-shop for sustainability & performance H1 2021 RESULTS AND OUTLOOK 44 / 1. OECD 2. United Nations DESA 3. WHO 4. PR Newswire data for 2017-2022 period 5. Bizenergy Advisor 6. Building 4 People report published by BPIE (Building Performance Institute Europe) SAINT-GOBAIN#45SOLUTIONS ENABLING SUSTAINABLE MOBILITY Saint-Gobain electric mobility solutions Well-being & energy savings -7kg Average car weight reduction thanks to Saint-Gobain solutions 1 SEKURIT Lightweight glazing x3 Passenger transport increase 2015-20501 -15% Contribution of transport sector to world CO2 emissions² €5-10tn Recovery plans worldwide with mobility initiatives³ 27m Expected electric vehicles in circulation by 2030 36m estimated regular users of car sharing services by 20254 B x2 Total energy use increase in transport sector 2010-20505 2 2 Tinted glass & repair Gard Isover 3 Thermal & acoustic insulation HKO 5 3 Performance & energy savings 4 NORGLIDE Tolerance rings RENCOL 5 NORSEAL Films & battery separators Well-being & energy savings 1 SEKURIT Climacoat heated windshield smart vision 2 3 Isover 1 2 KAIMANN 3 Performance solutions to consume less energy per kilometer H1 2021 RESULTS AND OUTLOOK 45/ 1. BCC Research 2. WRI 3. €750bn in EU, $1.9tn in the USA, €6tn in China 4. Frost & Sullivan 5. IEA 6. European Commission Thermal insulation كي SAINT-GOBAIN Micaver electrical insulation SAINT-GOBAIN#46I END MARKETS* NEW RESIDENTIAL 1% 7% 8% 5% 2% CONSTRUCTION 23% NEW NON-RESIDENTIAL CONSTRUCTION 12% RENOVATION / INFRAST. 52%** MOBILITY 6% OTHER INDUSTRIES 7% * Saint-Gobain estimated end markets ** Renovation 46% & Infrastructure 6% 46/ 1% 5% 3% 2% 1% 1% 20% 22% 8% 1% 6% 7% HPS ~16% NORTHERN EUROPE ~32% SOUTHERN EUROPE - ME & AFRICA -33% AMERICAS -15% ASIA-PACIFIC -4% H1 2021 RESULTS AND OUTLOOK SAINT-GOBAIN#47SAINT-GOBAIN, AN ESG LEADER Theme CLIMATE Saint-Gobain indicators CO2 emissions (Mt) - scope 1+2 13 15 I 2019 2020 I T 10.8 10.4 I E ENERGY 13 AUTUM CO2eq avoided emissions thanks to our insulation solutions sold in 1 year (Mt) kgCO₂/€ sales 1,200* I | 0.25 0.27 I Renewable electricity contribution as part of electricity consumption (%) I I 18.2% 18.9% DFANAR AND SENA WATER CIRCULAR ECONOMY HEALTH & SAFETY NE 12 L CANFRECCI Industrial water withdrawal (M of m³) 48.9 | 45.4 | I Avoided virgin raw materials (Mt) 8.5 10.1 Group accident frequency rate (TRAR) I I 2.2 I 1.8 I (employees, temporary workers and permanent subcontractors) I DIVERSITY 5 10 St ALITY INEQUALITIES Share of women managers among managers (%) 24.2% 25.3% I I S ENGAGEMENT & TALENT DEVELOPMENT EUBCATE 10 PELLIED ☐ SOCIAL PROTECTION ETHICS & COMPLIANCE 15 Y DIVERSITY G BOARD STRUCTURE MANAGEMENT INCENTIVES GROUP SAVINGS PLAN Share of women on Group Executive Committee (%) Satisfaction survey: Employees responding (% total) Engagement index score Employees feel adequately trained to do their work (% respondents) "CARE by Saint-Gobain" social protection program coverage (% employees): ☐ Parental pillar (14 weeks maternity leave on full salary and a minimum of 3 days leave on full salary for the spouse after the birth or adoption of a child) % of new managers trained to our Principles of Conduct and Action in their first year Share of women on Board (%) Share of independent directors on Board (%) % ESG criteria in long-term incentive plans C NET MALM BROWS Proportion of shares held by Group employees' savings plan (%) 25% 74% 78% 79 82 87% 88% | 100% | I 93% 97% I I 45% I 45% I 73% 82% 15% I 20% I 8.7% 9.1% | 47/ * Estimate based on 2017 sales of insulative solutions H1 2021 RESULTS AND OUTLOOK SAINT-GOBAIN