19 December 2022: REC Silicon ASA ("REC" or the "Company") has learned of a cyber security incident. The Company’s virtual server environment suffered a ransomware attack that caused business systems to stop functioning for a brief period of time. The Company engaged an incident response company that specializes in the recovery of data, restoration of systems, remediation, and investigation.

All systems of the Company have been successfully restored with only minor data loss. The Company’s production, safety, quality, sales, and revenue were not affected by the incident. Although all REC systems have been recovered, regretfully, the threat actor did exfiltrate a limited amount of data that does not appear to include any significant intellectual property of the Company. REC has implemented increased security and is taking additional steps to ensure the protection of its information and server environment from any future incidents.

Contacts

Nils O. Kjerstad
IR Contact
Phone: +47 9135 6659
Email: nils.kjerstad@recsilicon.com

About Us

REC Silicon is a leading producer of advanced silicon materials, delivering high-purity polysilicon and silicon gas to the solar and electronics industries worldwide. We combine over 30 years of experience and proprietary technology with the needs of our customers, with annual production capacity of more than 20,000 MT of polysilicon from our two US-based manufacturing plants. Listed on the Oslo Stock Exchange (ticker: RECSI), the Company is headquartered in Lysaker, Norway.

For more information, go to: www.recsilicon.com

This information is subject to disclosure under the Norwegian Securities Trading Act, §5-12. The information was submitted for publication at 2022-12-19 08:00 CET.

Attachments

REC Silicon – Cyber Security Incident

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