Participation notification by BlackRock Inc.
Brussels, Belgium - May 2, 2024 - 8:30 CEST
According to Belgian transparency legislation (Law of May 2, 2007), BlackRock Inc. (50 Hudson Yards, New York, NY, 10001, U.S.A.) recently sent to Syensqo the
following transparency notification indicating that it crossed the threshold of 3%. Here is a summary of the move:
+----------------------+------------------------+------------------------+-----+
| | | Equivalent financial | | | Date on which the |Voting rights after the | instruments after the | | |threshold was crossed | transaction | transaction |Total| +----------------------+------------------------+------------------------+-----+
| April 25, 2024 | 2.99% | 0.67% |3.67%| +----------------------+------------------------+------------------------+-----+
The notification, dated April 29, 2024, contains the following information:

  * Reason for the notification: Holding of voting securities upon first
    admission to trading
  * Notified by: BlackRock Inc. : A parent undertaking or a controlling person
  * Date on which the threshold is crossed: April 25, 2024
  * Threshold of direct voting rights crossed: 3% downwards
  * Denominator: 105,876,417

* Additional information: The disclosure obligation arose due to voting rights

    attached to shares for BlackRock, Inc. going below 3%.
  * Persons subject to the notification requirement: see file attached

Transparency notifications and the full chain of controlled undertakings through
which the holding is effectively held is available on the Investor Relations
Section (https://www.syensqo.com/en/investors/regulated-information) of
Syensqo's website.

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