Siltronic AG: Release according to Article 40, Section 1 of the WpHG [the German Securities Trading Act] with the objective of Europe-wide distribution

EQS Voting Rights Announcement: Siltronic AG Siltronic AG: Release according to Article 40, Section 1 of the WpHG [the German Securities Trading Act] with the objective of Europe-wide distribution 09.10.2025 / 17:03 CET/CEST Dissemination of a Voting Rights Announcement transmitted by EQS News - a service of EQS Group. The issuer is solely responsible for the content of this announcement.

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Notification of Major Holdings

1. Details of issuer

Name:	Siltronic AG
Street:	Einsteinstr. 172
Postal code:	81677
City:	Munich Germany
Legal Entity Identifier (LEI):	5299003NKV26NNGHHR90

2. Reason for notification

X	Acquisition/disposal of shares with voting rights
X	Acquisition/disposal of instruments
	Change of breakdown of voting rights
	Other reason:

3. Details of person subject to the notification obligation

Legal entity: The Goldman Sachs Group, Inc. City of registered office, country: Wilmington, DE, United States of America (USA)

4. Names of shareholder(s)
holding directly 3% or more voting rights, if different from 3.

5. Date on which threshold was crossed or reached:

02 Oct 2025

6. Total positions

% of voting rights attached to shares