Elvalhalcor S.A.

Transaction in Own Shares • Sep 22, 2025

Athens, September 22, 2025

ANNOUNCEMENT

Purchase of Own Shares

The company under the trade name "ELVALHALCOR HELLENIC COPPER AND ALUMINIUM INDUSTRY S.A." ("ELVALHALCOR") announces that, in the context of its own shares buyback program according to the resolution of the Ordinary Meeting of its Shareholders dated 23/5/2024, during the period 15/09/2025 –19/09/2025 it has acquired through the Athens Exchange 50,000 own shares in total, as follows:

DATE	NUMBER OF SHARES	TOTAL AMOUNT (€)	AVERAGE PRICE (€)
15/9/2025	10,000	28,680.01	2.8680
16/9/2025	10,000	28,313.59	2.8314
17/9/2025	10,000	27,816.20	2.7816
18/9/2025	10,000	27,995.38	2.7995
19/9/2025	10,000	28,654.23	2.8654
TOTAL:	50,000	141,459.41	2.8292

The above acquisitions were made through the Athens Exchange member PIRAEUS SECURITIΕS S.A.

Following the aforementioned acquisitions, ELVALHALCOR holds in aggregate 853,035 own shares, i.e. a percentage of 0.2273% of the total number of shares of ELVALHALCOR.

It is noted that, following the above last acquisition, the current maximum acquisition limit of 500,000 own shares by ELVALHALCOR, which was set following the decision of the Board of Directors of ELVALHALCOR of 07/07/2025 and, subsequently, announced to the investing public (https://www.elvalhalcor.com/userfiles/pdfs/20250707%20Ανακ%20Επανεναρξη%20Κυκλος%202 %20ΕΝ.pdf), in the context of the implementation of the ELVALHALCOR own shares Buyback Program, which was approved by the resolution of the Ordinary General Meeting of Shareholders of ELVALHALCOR of 23/05/2024, has been completed.

This announcement is issued pursuant to Regulation (EU) 596/2014 of the European Parliament and of the Council of 16 April 2014 and Commission Delegated Regulation (EU) 2016/1052 of 8 March 2016.