Elvalhalcor S.A.

Transaction in Own Shares • Sep 15, 2025

Athens, September 15, 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 08/09/2025 –12/09/2025 it has acquired through the Athens Exchange 50,000 own shares in total, as follows:

DATE	NUMBER OF SHARES	TOTAL AMOUNT (€)	AVERAGE PRICE (€)
8/9/2025	10,000	25,742.06	2.5742
9/9/2025	10,000	26,050.01	2.6050
10/9/2025	10,000	26,685.02	2.6685
11/9/2025	10,000	27,178.74	2.7179
12/9/2025	10,000	28,685.02	2.8685
TOTAL:	50,000	134,340.85	2.6868

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

Following the aforementioned acquisitions, ELVALHALCOR holds in aggregate 803,035 own shares, i.e. a percentage of 0.2140% of the total number of shares of ELVALHALCOR.

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.