Participation notifications by Citigroup Inc.

Press release Regulated information Brussels, January 28, 2026, 17:45 CET In line with Belgian transparency legislation (Law of May 2, 2007), Citigroup Inc. 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 is crossed Voting rights after the transaction Equivalent financial instruments after the transaction Total January 19, 2026 0.56% 2.51 3.06% January 22, 2026 0.00% 0.00% ...