Syensqo - Acquisition of own shares

Acquisition of own shares

Brussels, Belgium – June 9, 2025 - 17:45 CET

In accordance with article 7:215 of the Belgian Code of Companies and Associations, Syensqo SA ("Syensqo” or the "Company”) pursues its Share Buyback Program (or the "Program”) announced on September 30, 2024, covering up to €300 million.

This third tranche began on February 27, 2025 and will run until June 27, 2025 at the latest, and will cover a maximum amount of up to €50 million (of the €300 million Program). The Company intends to cancel all shares acquired through this tranche.

In the framework of this tranche, Syensqo announces that it has repurchased 10,000 Syensqo shares in the period from June 2, 2025 up to and including June 6, 2025, as follows:

Date of purchase	Market / MTF	Number of shares	Average price paid (€)	Total (€)	Lowest price paid (€)	Highest price paid (€)
02-Jun-25	CEUX	1,578.00	67.60	106,680.37	66.98	68.08
02-Jun-25	ENXT	922.00	67.73	62,451.58	66.80	68.10
03-Jun-25	CEUX	1,550.00	68.26	105,805.33	67.40	68.88
03-Jun-25	ENXT	950.00	68.40	64,982.19	67.76	68.88
04-Jun-25	CEUX	1,379.00	68.89	95,000.00	68.68	69.34
04-Jun-25	ENXT	1,121.00	68.98	77,330.39	68.60	69.32
05-Jun-25	CEUX	1,289.00	69.47	89,546.83	69.06	69.88
05-Jun-25	ENXT	1,211.00	69.55	84,221.05	69.32	69.88
Total		10,000		686,018

• As of June 6, 2025, the Company held a total of 1,537,424 own shares, spread out as follows:
• 140,021 Syensqo shares in the framework of the third tranche of the ongoing €300 million Program that started on November 5, 2024;
• 746,031 Syensqo shares in the framework of the LTIP Share Buyback Program that ended on October 23, 2024;
• 651,372 Syensqo shares by Syensqo Stock Option Management SRL ("SSOM”), a wholly owned indirect subsidiary of the Company.

Contacts

Investors & Analysts		Media
investor.relations@syensqo.com		media.relations@syensqo.com
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

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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Attachment

• 20250609_Acquisition of shares_EN