Solvay S.A.: acquisition of own shares

Brussels, September 23, 2024, 6:00pm CEST - Regulated information

In accordance with article 8:4 of the Royal Decree of 29 April 2019 executing the Belgian Code of Companies and Associations, Solvay SA hereby discloses certain information in relation to its Share Buyback Program, announced on August 1, 2024.

Solvay has repurchased 24,455 Solvay shares in the period from September 16, 2024 up to and including September 20, 2024, as follows:

Date of repurchase	Number of shares	Average price paid	Max price paid	Min price paid	Total	Market
16-09-2024	12	31.1300	31.13	31.13	373.56	AQEU
16-09-2024	997	31.1790	31.28	31.12	31,085.46	CEUX
16-09-2024	312	31.1237	31.14	31.10	9,710.59	TQEX
16-09-2024	6,834	31.2010	31.45	31.10	213,227.63	XBRU
17-09-2024	500	32.3520	32.55	32.17	16,176.00	CEUX
18-09-2024	500	32.8784	33.34	32.53	16,439.20	XBRU
19-09-2024	25	34.4400	34.44	34.44	861	CEUX
19-09-2024	475	34.2954	34.50	34.08	16,290.32	XBRU
20-09-2024	215	34.2752	34.35	34.20	7,369.17	AQEU
20-09-2024	1,495	34.2924	34.54	34.19	51,267.14	CEUX
20-09-2024	573	34.2995	34.36	34.23	19,653.61	TQEX
20-09-2024	12,517	34.3072	34.52	33.96	429,423.22	XBRU

As of September 20, 2024, Solvay held a total of 1,371,365 own shares, spread out as follows:

• 1,080,402 Solvay shares held by Solvay SA; and
• 290,963 Solvay shares held by Solvay Stock Option Management SRL ("SSOM"), a wholly owned indirect subsidiary of Solvay SA.

Contacts

Media relations	Investor relations
Peter Boelaert [phone] Laetitia Van Minnenbruggen [phone] [e-mail] (mailto:[e-mail])	Boris Cambon-Lalanne [phone] Geoffroy d'Oultremont [phone] Vincent Toussaint [phone] [e-mail] (mailto:[e-mail])

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 Solvay

Solvay, a pioneering chemical company with a legacy rooted in founder Ernest Solvay's pivotal innovations in the soda ash process, is dedicated to delivering essential solutions globally through its workforce of over 9,000 employees. Since 1863, Solvay harnesses the power of chemistry to create innovative, sustainable solutions that answer the world's most essential needs such as purifying the air we breathe and the water we drink, preserving our food supplies, protecting our health and well-being, creating eco-friendly clothing, making the tires of our cars more sustainable and cleaning and protecting our homes. Solvay's unwavering commitment drives the transition to a carbon-neutral future by 2050, underscoring its dedication to sustainability and a fair and just transition. As a world-leading company with €4.9 billion in net sales in 2023, Solvay is listed on Euronext Brussels and Parisor follow Solvayon Linkedin.

Attachment

• Press release (https://ml-eu.globenewswire.com/Resource/Download/3695f202-affc-4ae2-bae8-06e34dfdcda0)