FirstEnergy Pennsylvania Electric Co

Exhibit 99.1 FirstEnergy Corp. For Release: October 19, 2026 ────────────────────────────────────────────────────────────── 800 Cabin Hill Drive Greensburg, PA 15601 www.firstenergycorp.com News Media Contact: Investor Contact: Michon Ellis Karen Sagot 312-330-3733 330-761-4286 FirstEnergy Pennsylvania Electric Company Announces Extension of Exchange Offer for its 4.150% Senior Notes Due 2028 and 4.550% Senior Notes Due 2031 G…

8-K · 2026-10-19 · 0002152026-26-000007

Exhibit 99.1 FirstEnergy Corp. For Release: October 19, 2026 ────────────────────────────────────────────────────────────── 800 Cabin Hill Drive Greensburg, PA 15601 www.firstenergycorp.com News Media Contact: Investor Contact: Michon Ellis Karen Sagot 312-330-3733 330-761-4286 FirstEnergy Pennsylvania Electric Company Announces Extension of Exchange Offer for its 4.150% Senior Notes Due 2028 and 4.550% Senior Notes Due 203…

424B3 · 2026-10-19 · 0001193125-26-424888

EX-99.1 2 ex991-newsrelease9172026.htm EX-99.1 Document Exhibit 99.1 FirstEnergy Corp. For Release: September 17, 2026 ──────────────────────────────────────────────────────────────── 800 Cabin Hill Drive Greensburg, PA 15601 www.firstenergycorp.com News Media Contact: Investor Contact: Michon Ellis Karen Sagot 312-330-3733 330-761-4286 FirstEnergy Pennsylvania Electric Company Announces Launch of Exchange Offer for its 4…

8-K · 2026-09-17 · 0002152026-26-000004

Exhibit 10.7 SECOND REVISED, AMENDED AND RESTATED MUTUAL ASSISTANCE AGREEMENT This Second Revised, Amended and Restated Mutual Assistance Agreement (“Mutual Assistance Agreement” or “Agreement”) is entered by and among the companies listed on the signature page hereto (each a “Company” and collectively the “Companies”). WHEREAS, each Company is a subsidiary of FirstEnergy Corp. (“FirstEnergy”); WHEREAS, FirstEnergy Service Company (“Service Company”) provides corporate, administrative, mana…

S-4 · 2026-09-01 · 0001193125-26-378599

Exhibit 4.1 FIRSTENERGY PENNSYLVANIA ELECTRIC COMPANY TO U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION as Trustee Indenture (For Unsecured Debt Securities) Dated as of March 19, 2026 TABLE OF CONTENTS 1 RECITAL OF THE COMPANY 1 ARTICLE ONE DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION 1 Section 1.01 …

S-4 · 2026-09-01 · 0001193125-26-378599

Exhibit 4.2 EXECUTION VERSION REGISTRATION RIGHTS AGREEMENT This REGISTRATION RIGHTS AGREEMENT, dated as of March 19, 2026 (this “Agreement”), is entered into by and among FirstEnergy Pennsylvania Electric Company, a Pennsylvania corporation (the “Company”), and Barclays Capital Inc., J.P. Morgan Securities LLC and MUFG Securities Americas Inc., as representatives (the “Representatives”) of the initial purchasers set forth on Schedule 1 to the Purchase Agreement (as defined herein) (the “Init…

S-4 · 2026-09-01 · 0001193125-26-378599