0000787250-25-000021 Sample Contracts

FIRST SUPPLEMENTAL INDENTURE
First Supplemental Indenture • May 1st, 2025 • Dayton Power & Light Co • Electric & other services combined • New York

First Supplemental Indenture (this “Supplemental Indenture”), dated as of April 4, 2025, between DPL LLC (formerly known as DPL Inc.), an Ohio limited liability company (the “Company”), and U.S. Bank Trust Company, National Association (as successor in interest to U.S. Bank National Association), as trustee (the “Trustee”)

FIRST SUPPLEMENTAL INDENTURE
Supplemental Indenture • May 1st, 2025 • Dayton Power & Light Co • Electric & other services combined • New York

First Supplemental Indenture (this “Supplemental Indenture”), dated as of April 4, 2025, between DPL LLC (formerly known as DPL Inc.), an Ohio limited liability company (the “Company”), and U.S. Bank Trust Company, National Association (as successor in interest to U.S. Bank National Association), as trustee (the “Trustee”)