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Syensqo SA/NV

Major Shareholding Notification Aug 8, 2025

6535_mrq_2025-08-08_43c03027-a541-4544-bab2-a221500ed9db.pdf

Major Shareholding Notification

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Participation notification by BlackRock Inc.

Brussels, Belgium – August 08, 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:

Date on which the Voting rights after the Equivalent financial instruments Total
threshold was crossed transaction after the transaction
August 01 2025 3.04% 0.64% 3.68%

The latest notification, dated August 04, 2025 and received on August 05, 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: August 01, 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 BlackRock, Inc. going above 3%.
  • Persons subject to the notification requirement:
Name Address (for legal entities)
BlackRock, Inc. 50 Hudson Yards, New York, NY, 10001, U.S.A.
BlackRock (Singapore) Limited 20 Anson Road #18-01, Singapore, 79912, Singapore
BlackRock Advisors (UK) Limited 12 Throgmorton Avenue, London, EC2N 2DL, U.K.
BlackRock Advisors, LLC 50 Hudson Yards, New York, NY, 10001, U.S.A.
BlackRock Asset Management Canada Limited 161 Bay Street, Suite 2500, Toronto, Ontario, M5J 2S1, Canada
BlackRock Asset Management Deutschland AG Lenbachplatz 1 1st Floor, Munich, 80333-MN3, Germany
BlackRock Asset Management North Asia Limited 15/F, 16/F, 17/F Citibank Tower & 17/F ICBC Tower, 3 Garden Road, Central,
Hong Kong
BlackRock Capital Management, Inc. 100 Bellevue Parkway, Wilmington, 19809, U.S.A.
BlackRock Financial Management, Inc. 50 Hudson Yards, New York, NY, 10001, U.S.A.
BlackRock Fund Advisors 400 Howard Street, San Francisco, CA, 94105, U.S.A.
BlackRock Institutional Trust Company, National
Association
400 Howard Street, San Francisco, CA, 94105, U.S.A.
BlackRock Investment Management (Australia)
Limited
Level 37 Chifley Tower, 2 Chifley Square, Sydney NSW 2000, Australia
BlackRock Investment Management (UK) Limited 12 Throgmorton Avenue, London, EC2N 2DL, U.K.
BlackRock Investment Management, LLC 1 University Square Drive, Princeton, NJ, 8540, U.S.A.
BlackRock Japan Co., Ltd. 1-8-3 Marunouchi Chiyoda-ku, Trust Tower Main, Tokyo, 100-8217, Japan
Aperio Group, LLC 3 Harbor Dr Suite 204, Sausalito, CA 94965, U.S.A.

Notified details

A) Voting rights Previous notification After the transaction
# of voting rights # of voting rights % of voting rights
Holders of voting rights Linked to securities Not linked to the
securities
Linked to
securities
Not linked to the
securities
BlackRock, Inc. 0 0 0.00%
BlackRock (Singapore) Limited 4,355 4,355 0.00%
BlackRock Advisors (UK) Limited 181,062 208,980 0.20%
BlackRock Advisors, LLC 47,772 47,772 0.05%
BlackRock Asset Management Canada
Limited
58,091 58,095 0.06%
BlackRock Asset Management
Deutschland AG
188,417 188,417 0.18%
BlackRock Asset Management North
Asia Limited
2,356 2,356 0.00%
BlackRock Capital Management, Inc. 0 28 0.00%
BlackRock Financial Management, Inc. 7,871 7,871 0.01%
BlackRock Fund Advisors 1,339,960 1,339,896 1.29%
BlackRock Institutional Trust Company,
National Association
894,466 893,963 0.86%
BlackRock Investment Management
(Australia) Limited
17.082 17,082 0.02%
BlackRock Investment Management
(UK) Limited
122,163 179,476 0.17%
BlackRock Investment Management,
LLC
98,173 98,102 0.09%
BlackRock Japan Co., Ltd. 82,690 82,690 0.08%
Aperio Group, LLC 29,698 29,698 0.03%
Subtotal 3,074,156 3,158,781 3.04%
TOTAL 3,158,781 0 3.04% 0.00%
B) Equivalent financial instruments After the transaction
Holders of equivalent
financial instruments
Type of financial instrument Expiration date Exercise period or
date
# of voting rights
that may be
acquired if the
instrument is
exercised
% of voting rights Settlement
BlackRock Advisors (UK) Limited Securities Lent 575,480 0.55% physical
BlackRock Fund Advisors Securities Lent 6.882 0.01% physical
BlackRock Investment Management
(UK) Limited
Securities Lent 78.075 0 08% physical
BlackRock Investment Management,
LLC
Securities Lent 3,424 0.00% physical
TOTAL 663,861 0.64%
TOTAL (A & B) # of voting rights % of voting rights
CALCULATE 3,822,642 3.68%

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.

Contacts

Investors & Analysts Media [email protected] [email protected] Sherief Bakr +44 7920 575 989 Perrine Marchal +32 478 32 62 72 Bisser Alexandrov +33 607 635 280 Laetitia Schreiber +32 487 74 38 07 Loïc Flament +32 478 69 74 20 Robbin Moore-Randolph +1 470 493 2433

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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