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Participation notification by Capital Group Companies Inc.

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Brussels, Belgium – October 14, 2025 - 8:30 CEST

According to Belgian transparency legislation (Law of May 2, 2007), The Capital Group Companies, Inc. (333 South Hope Street 55fl. Los Angeles, CA 90071) recently sent Syensqo the following transparency notifications indicating that it crossed the threshold of 3%. Here is the summary of the moves:

Date on which the threshold was crossed

Voting rights after the transaction

Equivalent financial instruments after the transaction

Total

October 06 2025

3.02%

0.00%

3.02%


The latest notification, dated October 08, 2025 and received on October 10, 2025, contains the following information:

  • Reason for the notification: Acquisition or disposal of voting securities or voting rights
  • Notified by: The Capital Group Companies, Inc : A parent undertaking or a controlling person
  • Date on which the threshold is crossed: October 06, 2025
  • Threshold of direct voting rights crossed: 3% upwards
  • Denominator: 103,921,273
  • Additional information: The disclosure obligation arose due to voting rights attached to shares for The Capital Group Companies, Inc. going above 3%.
  • Persons subject to the notification requirement: see attached file

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.

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  technologies that advance humanity.