AMENDMENT NOTICE NO. 3 TO NATIONAL PUBLIC TENDER EGEPC-CCC-LPN-2026-0014 Battery Energy Storage System (BESS) Installation Project to Provide Primary and Secondary Frequency Regulation Services for the Punta Catalina Thermoelectric Power Plant (CTPC) The Empresa de Generación Eléctrica Punta Catalina (EGEPC), S.A., , created pursuant to Law No. 365-22, hereby notifies all interested parties submitting proposals for the Battery Energy Storage System (BESS) Installation Project to Provide Primary and Secondary Frequency Regulation Services for the Punta Catalina Thermoelectric Power Plant (CTPC) that changes have been made to the schedule contained in the Amended Bidding Documents. Accordingly, interested parties should consult Amendment No. 3 in the Transparency section of the institutional website at www.puntacatalina.com.do, for the preparation of their proposals. Proposals will be received in sealed envelopes until Monday, June 1, 2026, at 10:00 a.m. (Dominican Republic time), at Empresa de Generación Eléctrica Punta Catalina (EGEPC), Procurement Management Office, Torre Málaga VII, 4th Floor, Rafael Augusto Sánchez Street No. 38, Ensanche Naco, Santo Domingo, Dominican Republic. EGEPC PROCUREMENT AND CONTRACTING COMMITTEE IPL0340021 May 14-15 2026