REC Silicon ASA - Ex. subscription rights today

Issuer name: REC Silicon ASA

Ex. date: 13 March 2026

Type of corporate action: Fully underwritten preferential rights issue

Other information: The shares in REC Silicon ASA (the "Company") will from today, 13 March 2026, be traded exclusive of the right to receive subscription rights for shares in the fully underwritten preferential rights issue announced on 9 February 2026 and in subsequent announcements.

This information is published in accordance with the requirements of the Continuing Obligations for companies listed on Euronext Oslo Børs.

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

About REC Silicon ------------------------------------------------------------------------------ REC Silicon is a leading producer of advanced silicon materials, delivering high-purity silicon gases to the solar and electronics industries worldwide. We combine over 40 years of experience and proprietary technology with the needs of our customers. 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, through the agency of the contact persons set out above, at 2026-03-13 07:00 CET.