Morgan Stanley's shares in Solvay have increased.

Brussels, November 21, 2025, 17:45 CET – In accordance with Belgium's transparency law (Law dated May 2, 2007), Morgan Stanley announced that it has exceeded the 3% threshold with its notification to Solvay.

A summary of the notifications is provided below:

• Date: November 13, 2025 - Voting rights (%0.56), Equivalent financial instruments (%2.73), Total (%3.29)
• Date: November 14, 2025 - Voting rights (%0.13), Equivalent financial instruments (%3.17), Total (%3.30)

The information in the latest notification dated November 19, 2025, is as follows:

Reason for the notification: Acquisition or disposal of financial instruments recognized as voting securities.

Notifier: Parent company or controlling person.

Date exceeding the threshold: November 14, 2025.

Direct voting rights threshold: %3 upward.

Number of shares: 105,876,416

Additional information: Due to the registration of relevant financial instruments exceeding %3, a disclosure obligation has arisen. Morgan Stanley's total holding in Solvay remains above the previously reported %3 threshold.

Persons subject to notification: Morgan Stanley c/o The Corporation Trust Company (DE), Corporation Trust Center, 1209 Orange Street, Wilmington, Delaware 19801, USA.

For more information on transparency notifications and the audit chain holding the share effectively, please refer to Solvay's investor relations section.

Solvay is a leading chemical company with a rich heritage in the field since 1863. With approximately 9,000 employees, Solvay aims to provide important solutions worldwide, targeting the protection of human life and health through sustainable solutions. Solvay achieved a net sales of 4.7 billion Euros in 2024 and is listed on Euronext Brussels and Paris exchanges (SOLB).