Notice Regarding Potential Cybersecurity Incident(Second Report)

February 16, 2026
HOSOKAWA MICRON CORPORATION

We sincerely thank you for your continued patronage and support.As announced on Tuesday, February 3, 2026*, our company confirmed an incident that may indicate a cyberattack on Monday, February 2, 2026, at approximately 10:00 AM (JST).
*https://www.hosokawamicron.co.jp/en/news/2026/0203.html

We are currently investigating the cause and extent of the impact with the assistance of external cybersecurity specialists.
On Sunday, February 15, 2026, we confirmed that electronic files suspected to contain information from our systems were made publicly available on the Internet as a result of this cyberattack.
We are currently investigating the content and scope of the potentially leaked information.

At this time, no other impact has been confirmed, and business operations continue as normal.

We will provide updates as they become available, including on our website.

We sincerely apologize for any inconvenience and concern this incident may have caused.

For enquiries, please contact us at:
Email: contact_prt@hmc.hosokawa.com