February 13, 2026
Company Name: Toyo Engineering Corporation President & CEO: Eiji Hosoi
Stock Code: 6330, Stock Listing: Tokyo Stock Exchange Prime Market Inquiries: Naoko Hashimoto, General Manager
Corporate Communications Department TEL: +81-(0)50-1735-7304
Notice regarding lawsuit filed against the Company
We hereby announce that we received, on February 13, 2026, a notice that a lawsuit has been filed against the Company. Details are as follows:
Court and Date of Filing
Court: Tokyo District Court
Date of Filing: December 26, 2025
(Date of Service of Complaint: February 13, 2026)
Plaintiff
Name: Asunaro Aoki Construction Co., Ltd.
Address: 4-8-2 Shiba, Minato-ku, Tokyo
Representative: Mr. Naoyuki Mochizuki
Outline of the Lawsuit
Nature of Claim: Claim for payment of contract fees (including additional costs)
Amount Claimed: JPY 4,958,754,653
Background
The Company, acting as the prime contractor for a petrochemical plant construction project, subcontracted a portion of the construction work to the plaintiff. The plaintiff subsequently claimed additional costs associated with the performance of the subcontracted work. Although the parties engaged in discussions to resolve the matter, they were unable to reach an agreement, and the plaintiff has now filed the present lawsuit.
Future Outlook
The Company will carefully examine the plaintiffʼs allegations and the basis thereof, assert and substantiate the legal validity of the Companyʼs position, and take all necessary legal measures as appropriate.
At present, the Company expects that the impact of this matter on its financial results and financial position will be immaterial. Should any material matters arise that require disclosure, the Company will promptly make an announcement.