Syensqo - Participation notification by BlackRock Inc.

Brussels, Belgium – August 04, 2025 - 8:30 CEST
According to Belgian transparency legislation (Law of May 2, 2007), BlackRock Inc. (12 Throgmorton Avenue, London EC2N 2DL, UK) recently sent Syensqo the following transparency notifications indicating that it crossed the threshold of 3%. Here is the summary of the moves:

The latest notification, dated July 30, 2025 and received on July 30, 2025, contains the following information:

• Reason for the notification: 
  • Acquisition or disposal of voting securities or voting rights
• Notified by: BlackRock Inc : A parent undertaking or a controlling person
• Date on which the threshold is crossed: July 29, 2025
• Threshold of direct voting rights crossed: 3% downwards  
• Denominator: 103,921,273
• 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 of Syensqo's website.

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Safe harbor

This press release may contain forward-looking information. Forward-looking statements describe expectations, plans, strategies, goals, future events or intentions. The achievement of forward-looking statements contained in this press release is subject to risks and uncertainties relating to a number of factors, including general economic factors, interest rate and foreign currency exchange rate fluctuations, changing market conditions, product competition, the nature of product development, impact of acquisitions and divestitures, restructurings, products withdrawals, regulatory approval processes, all-in scenario of R&I projects and other unusual items. Consequently, actual results or future events may differ materially from those expressed or implied by such forward-looking statements. Should known or unknown risks or uncertainties materialize, or should our assumptions prove inaccurate, actual results could vary materially from those anticipated. The Company undertakes no obligation to publicly update or revise any forward-looking statements.

About Syensqo 

Syensqo is a science company developing groundbreaking solutions that enhance the way we live, work, travel and play. Inspired by the scientific councils which Ernest Solvay initiated in 1911, we bring great minds together to push the limits of science and innovation for the benefit of our customers, with a diverse, global team of more than 13,000 associates. 
Our solutions contribute to safer, cleaner, and more sustainable products found in homes, food and consumer goods, planes, cars, batteries, smart devices and health care applications. Our innovation power enables us to deliver on the ambition of a circular economy and explore breakthrough technologies that advance humanity.

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Attachments

• 20250804_BlackRock_Notification_EN
• Syensqo SA_2025-07-29_Issuer_signed