LETTER TO SHAREHOLDERS N°97

ONE PRECISION ASSEMBLIES: A COMPREHENSIVE RANGE OF SOLUTIONS FOR THE RESIDENTIAL CONSTRUCTION SECTOR IN THE US In May 2023 in the US, SaintGobain launched One Precision Assemblies (OPA), its first-ever prefabricated residential construction solution for walls, floors, ceilings and roofing. In 2022, two pilot projects were launched with fullyconstructedpanelsdevelopedwith Saint-Gobain products, built at a partner plant, shipped to a building site and assembled to form two energy-efficient individual homes in Mystic, Connecticut, and Keene, New Hampshire. These homes currently consume half the energy consumed by a traditional house, resulting in an excellent cost/ performance ratio. Manufacturing lead times are also considerably less: for a fully customized house, in-factory production of the wall panels takes a week, while just one day is needed to assemble them on site, compared to between four and nine months approximately in more conventional building projects, depending on the project’s location, scale and complexity, and on the builder. COMFORT FOR SENIORS! In France from January 1, 2024, new financial aid will be available for people to better adapt their homes for old age. Ma Prime Adapt’ will be available to lowincome and very low-income households, but will no doubt have a positive knock-on effect on the issue of age-proofing homes. The La Maison SaintGobain website has published a guide to help professionals and homeowners adapt homes to ensure comfortable “ageing at home”. This French initiative is a response to the global challenge of an ageing population. The practical, comprehensive guide will enable trade clients to advise their own customers and learn about the technical rules and best practices for age-proofing homes. La Maison Saint-Gobain can also provide support to individuals, from the birth of an idea and contact with professionals to the execution of their projects. Follow this link to download the La Maison Saint-Gobain guide. (*) INITIATIVES 3D PRINTINGWORLDWIDE Saint-Gobain Weber Beamix, a specialist in 3D concrete printing in the Netherlands, has developed Weber Mobile Setup, an innovative solution to demonstrate the potential of printed concrete. Everything you need for 3D concrete printing in a single container! Weber Mobile Setup is ready to use and can be shipped anywhere in the world. It takes less than 48 hours to get it up and running to print elements on demand. A unique service to convince any company, anywhere, of the benefits of 3D concrete printing without the initial outlay. The Weber Mobile Setup prototype has already proven its worth in the Netherlands, the UK, Hungary and the United States. INNOVATION INNOVATION SAINT-GOBAIN TO JOIN EURO STOXX 50 In the context of a review of the composition of benchmark STOXX indices, on September 18, 2023 Saint-Gobain will join the EURO STOXX 50. The EURO STOXX 50 is composed of the 50 leading listed bluechip companies in the eurozone based on market capitalization, adjusted for free float as of August 31, 2023. Saint-Gobain’s inclusion in EURO STOXX 50 is recognition of its profound transformation, begun at the end of 2018, which has significantly improved its growth and profitability profile. Since that time, Saint-Gobain has outperformed, achieving a two-fold increase in its earnings per share, a three-fold increase in its free cash flow generation, improving its return on capital by 540 basis points and is targeting a double-digit operatingmargin in 2023 for the third consecutive year. FINANCE *In French

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