Current report No. 39/2025

Date: 15 September 2025

Subject: Conclusion of an agreement with the General Contractor for theconstruction of the second gas-steam unit (CCGT) in Grudziądz

Legal basis: Article 17 (1) of MAR - inside information

The Management Board of Energa SA ("Issuer") informs that on 15September 2025, the Issuer's subsidiary CCGT Grudziądz Sp. z o.o.("Company"), concluded the agreement with the consortium of SiemensEnergy Global GmbH _ Co.KG and Siemens Energy Sp. z o.o. (together"General Contractor") for the design and construction of the secondgas-steam unit in Grudziądz with a capacity of approximately 560 MWe net("CCGT Grudziądz II") for an estimated amount of approx. PLN 3.1billion. The new investment will be located next to the gas-steam unitwith the same capacity currently under construction.

The CCGT Grudziądz II will be designed and constructed by the GeneralContractor as a single-shaft unit: with one gas turbine, a recoveryboiler, a condensing steam turbine unit and a wet fan cooler. Theproject will be performed on a "turnkey" basis, covering the performanceof all works including, but not limited to, design, obtaining selectedadministrative decisions on behalf of the contracting party, deliveries,civil works, assembly, staff training, trial run, test run,commissioning of the power plant and provision of warranty services inthe period following commissioning of the power plant. The schedule forthe implementation of the CCGT Grudziądz II provides for thecommencement of construction works in 2025, and the commissioning of thepower plant in 2029.

Along with the above-mentioned agreement, the Company concluded thelong-term contract with Siemens Energy Sp. z o.o. for the provision ofmaintenance services for the CCGT Grudziądz II (up to a maximum of 20years from the date of commissioning the power plant).

In July 2025, the Company concluded a 17-year contract with theTransmission System Operator within the capacity market with a capacityobligation for CCGT Grudziądz II in the amount of 525.224 MW, with thefirst year of delivery in 2029. The total expected revenues of theCompany from this contract during its term may amount to approx. PLN 4.8billion.