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Notice Concerning Unauthorized Access to a Server at a U.S. Subsidiary

Notice

Hosaka Corporation

On March 18, 2025 (U.S. Central Time), our U.S. subsidiary Hosaka America, Inc. detected unauthorized access to a server used for its customer support portal. The subsidiary immediately disconnected the server from the network and began an investigation with an external specialist.

At present, there is no indication that the access extended to other Group systems. We will announce the results of the investigation as soon as they are available.

Contact: Corporate Communications Department, Hosaka Corporation press@hosakacorporation.com

The information in this release is current as of the date of publication and may change without notice.