Participation Notification by Blackrock Inc.

Participation notification by Blackrock Inc.

Brussels, 26 May 2021, 08:30 CEST - According to Belgian transparency legislation (Law of May 2, 2007), BlackRock . (55 East 52nd Street, New York, NY, 10055, U.S.A.) recently sent to Solvay the following transparency notification indicating that it crossed the threshold of 3%. Here is a summary of the move:

The latest notification, dated May 20, 2021, contains the following information:

• Reason for the notification: acquisition or disposal of voting securities or voting rights
• Notified by: BlackRock . (55 East 52nd Street, New York, NY, 10055, U.S.A.)
• Date on which the threshold is crossed: May 19, 2021
• Threshold of direct voting rights crossed: 3% upwards
• Denominator: 105,876,416
• Additional information: The disclosure obligation arose due to voting rights attached to shares for BlackRock , Inc. going above 3%.

Transparency notifications are available on the Investor Relations Section of Solvay 's website.

Attachments

• 20210526_transparency declaration Blackrock-EN
• Solvay_2021-05-19_Issuer_signed