3043 Kofun Announces Civil Lawsuit Filed by Canadian Client

Release Date: August 6, 2026 Statement Date: August 5, 2026 Statement Time: 18:32:21 Company Code: 3043 Company Name: Kofun Subject: Announcement Regarding Civil Lawsuit Initiated by Canadian Client Applicable Clause: Item 2 Factual Event Date: August 5, 2026

Details: 1. Parties to the Legal Case: Plaintiff: PLENARY PROPERTIES LTAP LP Defendant: The Company (Kofun)

2. Court or Administrative Authority Handling the Case: Ontario Superior Court of Justice, Canada

3. Case Number of the Legal Document: Ontario Court Case Number: CV-24-00720432-0000

4. Factual Event Date: August 5, 2026

5. Circumstances of the Incident (Including Subject of Litigation): A fire incident occurred due to a defect in the elevator control cabinet of a building, resulting in damage to the building structure and internal equipment. The plaintiff has filed a civil tort damages lawsuit against seven suppliers involved in the elevator control cabinet, including Kofun’s UPS product. The plaintiff is seeking a total compensation of CAD 2 million from the seven suppliers.

6. Progress of Handling: The case is currently under first-instance proceedings at the Canadian court.

7. Impact on Company's Financials and Business Operations, and Estimated Impact Amount: The company has already reported the incident to its insurer according to insurance procedures. The insurance policy has a maximum coverage limit of USD 2 million. Due to this risk transfer mechanism via insurance, the company believes this case will not have a material adverse effect on its current financial condition, business operations, or overall operations.

8. Response Measures and Improvement Status: The company will engage legal counsel to handle subsequent legal matters. Updates on the case will be disclosed in accordance with regulatory requirements.

9. Other Matters to Be Disclosed: None.