Press release Regulated information Brussels, September 26, 2025, 17:45 CEST In line with Belgian transparency legislation (Law of May 2, 2007), Morgan Stanley recently sent to Solvay the following transparency notifications indicating that they crossed the threshold of 3%. Here is a summary of the notifications: Date on which the threshold was crossed Voting rights after the transaction Equivalent financial instruments after the transaction Total September 18, 2025 0.00% 3.13% 3.13% September 22, ...