REGULATED PRESS RELEASE

from SAINT-GOBAIN (EPA:SGO)

Total number of voting rights and shares making up the share capital at November30, 2025

Compagnie de Saint-Gobain – Société anonyme with a share capital of € 1,979,230,704
Tour Saint-Gobain – 12, place de l’Iris – 92400 Courbevoie, France

Total number of voting rights and shares
making up the share capital

Article L.233-8 II of the French Commercial Code and
Article 223-16 of AMF General Regulations

DateTotal number of issued
shares making up the
Company’s share capital
Total number of voting rights
GrossExercisable
November 30, 2025499,067,417549,947,668544,225,139
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