Contract analysis

I. Executive Summary This memorandum summarizes the results of our due diligence review of all pending, threatened, and recently concluded litigation, arbitration, and regulatory proceedings involving Halcyon Semiconductor Aktiengesellschaft ("Halcyon AG," "Halcyon," or the "Company") and its material subsidiaries, including Halcyon Semiconductor USA Inc. ("Halcyon USA"), Halcyon Power Solutions GmbH ("Halcyon Power"

II. Applicable Disclosure Standards Before turning to the individual proceedings, we set forth below the relevant disclosure standards that govern the Company's obligations with respect to litigation and regulatory matters in the Form F-1 registration statement and prospectus. These standards inform our materiality assessments and disclosure recommendations throughout this memorandum. A. Item 8 of Form 20-F ("Legal P

III. Summary of Pending Litigation A. Patent Infringement Proceedings

1. Voltaris Technologies GmbH v. Halcyon Power Solutions GmbH (Landgericht München I) Status: Pending Forum: Landgericht München I (Sundial Assurance Court I), Case No. 7 O 4817/24 Date Filed: March 14, 2024 Claimant: Voltaris Technologies GmbH ("Voltaris"), a Munich-based competitor specializing in silicon carbide ("SiC") power module packaging and substrate bonding technologies. Voltaris is a privately held company

2. Halcyon Semiconductor AG v. SinoTronic Devices Co., Ltd. (ITC Investigation and Northern District of California) Status: Pending Forum: United States International Trade Commission ("ITC"), Investigation No. 337-TA-1298; and United States District Court for the Northern District of California, Case No. 3:25-cv-08431 Date Filed: September 12, 2025 (ITC complaint); September 19, 2025 (district court complaint) Compl

3. Draymont Automotive Systems AG Arbitration (ICC International Court of Arbitration) Status: Pending Forum: ICC International Court of Arbitration, Paris, France; Case No. 27841/MKE Date Commenced: November 8, 2024 Claimant: Draymont Automotive Systems AG ("Draymont"), a German Tier-1 automotive supplier headquartered in Stuttgart, with annual revenues of approximately €14 billion. Draymont is a publicly traded com

4. Former Distributor Dispute — Nexora Trading Pte. Ltd. Status: Settled (concluded Q2 2025) Forum: Singapore International Arbitration Centre ("SIAC"), administered under the SIAC Rules 2016 Date Commenced: January 17, 2024 Date Resolved: May 9, 2025 Claimant: Nexora Trading Pte. Ltd. ("Nexora"), a Singapore-incorporated company that served as Halcyon Asia Pacific Pte. Ltd.'s authorized distributor for GaN and SiC p

5. Former Executive Wrongful Termination Claim — Dr. Erich Moser Status: Pending Forum: Arbeitsgericht München (Munich Labor Court), Case No. 12 Ca 9184/25 Date Filed: August 22, 2025 Claimant: Dr. Erich Moser, a German national and former Vice President of Strategic Sourcing at Halcyon Semiconductor AG. Dr. Moser was employed by Halcyon AG from September 2019 to June 2025. Nature of Claim. Dr. Moser alleges that his

6. Works Council Dispute — Halcyon Power Solutions GmbH (Dresden) Status: Ongoing negotiation / potential Einigungsstelle proceedings Forum: No formal proceedings have been filed as of the date of this memorandum. The dispute is currently being handled through the co-determination consultation process required under the Betriebsverfassungsgesetz (German Works Constitution Act). Nature of Dispute. The Betriebsrat (wor

7. Thornfield Electric Motors Ltd. Product Liability Claim Status: Pre-litigation demand; no formal proceedings filed as of the date of this memorandum Forum: N/A (threatened proceedings in the High Court of England and Wales, Queen's Bench Division, Technology and Construction Court) Nature of Claim. Thornfield Electric Motors Ltd. ("Thornfield"), a UK-based manufacturer of industrial electric motor drive systems he

8. German Tax Audit — Transfer Pricing Adjustment Status: Under administrative review / objection (Einspruch) stage Forum: Finanzamt München (Munich Tax Office); administrative review proceeding Nature of Proceeding. In 2024, the Finanzamt München commenced a routine tax audit (Betriebsprüfung) of Halcyon Semiconductor AG's corporate income tax returns for fiscal years 2021 through 2023. As part of this audit, the Fi

IV. Summary of Regulatory Proceedings and Investigations A. German Federal Financial Supervisory Authority (BaFin)

9. BaFin Market Abuse Inquiry Status: Closed (no action) Forum: Bundesanstalt für Finanzdienstleistungsaufsicht (BaFin), Frankfurt am Main Period of Inquiry: April–October 2024 Nature of Inquiry. In April 2024, BaFin's Division for Market Surveillance and Market Integrity (WA 22) opened a routine surveillance inquiry related to trading activity in Halcyon Semiconductor AG's ordinary shares (FRA: HCY) in the period su