EQS — PVR: 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 18.09.2026 / 12:01 CET/CEST Dissemination of a Voting Rights Announcement transmitted by 1 EQS News — a service of 2 EQS Group. The issuer is solely responsible for the content of this announcement. ═══════════════════════════════════════════════════════════════════════════ 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 │ ├───┼────────