Amendment of the Financial Calendar for the Year 2025

METLEN ENERGY & METALS SA ("METLEN S.A.") announces an amendment to its Financial Calendar for the year 2025, initially published on December 23, 2024.

The amendment is deemed necessary in light of the multiple ongoing corporate actions related to the voluntary share exchange tender offer process under article 6 of Greek law 3461/2006 (the “Tender Offer”) to acquire the total ordinary registered shares issued by Metlen S.A., in the context of the intended listing of the shares of METLEN ENERGY & METALS PLC ("METLEN PLC") on the London Stock Exchange (the “LSE”) and the Athens Stock Exchange (the “ATHEX”).

The revised Financial Calendar is as follows:

• July 29, 2025: Announcement of the Tender Offer Results
• September 9, 2025:
  • Publication of H1 2025 Financial Results
  • Release of H1 2025 Financial Report
  • Investor Conference Call
• November 6, 2025: Announcement of Key Financial Figures for Q3 2025

The performance and the outlook of the Company for the full year 2025 remains fully aligned with the expectations of the Management.

Subject to the final official confirmation of the successful completion of the Tender Offer (expected to take place on July 29^th, 2025) and fulfillment of the relevant conditions, the Financial Calendar will be supplemented with the following indicative events:

• July 30: Transfer of tendered METLEN S.A. shares to METLEN PLC’s DSS securities account – Commencement of the sell-out period
• August 1: Completion and settlement of the Tender Offer – Crediting of new shares to CREST/DSS securities accounts
• August 4: Commencement of trading of METLEN PLC shares on the LSE and ATHEX

METLEN S.A. underscores its commitment to providing timely and transparent updates to the investment community regarding regulatory approvals and subsequent developments. While the following milestones are subject to regulatory clearance and may be adjusted accordingly, the Company currently anticipates for their completion i within September 2025:

• August 4: Submission of the request to the Hellenic Capital Market Commission for initiation of the squeeze-out procedure
• August 7*: Approval of the squeeze-out by the Hellenic Capital Market Commission
• August 8*: Commencement of the 10-business-day notice period prior to suspension of trading of METLEN S.A. shares
• August 22*: Suspension of trading of METLEN S.A. shares on the Athens Exchange, (10-business days from regulatory approval)
• September 5 / 8*: Completion of the squeeze-out process resulting in METLEN PLC acquiring 100% of METLEN S.A.
• September 8 / 9*: METLEN S.A. General Assembly to approve delisting from the ATHEX
• September 12*: Delisting approval by the Hellenic Capital Market Commission
• September 15 / 16*: Delisting of METLEN S.A. shares from the ATHEX]

METLEN S.A. reserves the right to further amend the Financial Calendar in accordance with its operational requirements and applicable regulations.

The updated Financial Calendar will be made available on the Company’s website (www.metlengroup.com) and on the ATHEX website (www.athexgroup.gr).

* The specific dates are subject to the final confirmation of the competent regulatory authorities.