SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 17, 1998 Commission Registrant; State of Incorporation; IRS Employer File Number Address; and Telephone Number Identification No. 1-11375 UNICOM CORPORATION 36-3961038 (an Illinois corporation) 37th Floor, 10 South Dearborn Street Post Office Box A-3005 Chicago, Illinois 60690-3005 312/394-7399 1-1839 COMMONWEALTH EDISON COMPANY 36-0938600 (an Illinois corporation) 37th Floor, 10 South Dearborn Street Post Office Box 767 Chicago, Illinois 60690-0767 312/394-4321 Item 5. Other Events. Commonwealth Edison Company announced on December 16, 1998 it had closed, and received the proceeds from, its issuance of $3.4 billion in asset-backed securities. As approved by the Illinois Commerce Commission, these proceeds will be used to reduce the company's cost of capital through debt and equity redemptions. ComEd is redeeming $788 million in debt and $534 million in preference stock in January and February 1999 following approval by its board of directors. The company also announced that it will use approximately $500 million in proceeds to reduce short- term debt. Details on the redemptions are given below: FIRST MORTGAGE BONDS TO BE REDEEMED JANUARY 27, 1999* RATE (%) SERIES ORIGINAL PRINCIPAL ($M) REDEMPTION MATURITY PRICE** DATE 9.125 79 10/15/2021 125 105.74% 8.875 77 10/01/2021 100 105.19% 8.125 35 01/15/2007 180 101.84% 8.000 26 10/15/2003 125 101.24% 7.625 25 06/01/2003 100 101.09% 7.500 22 01/01/2001 100 100.28% $730 *On the redemption date, these bonds will cease to bear interest. **Plus accrued unpaid interest through the redemption date. SINKING FUND DEBENTURES TO BE REDEEMED FEBRUARY 15, 1999* RATE SERIES PRINCIPAL($M) REDEMPTION PRICE** 7.625% 1, due February 15, 2003 2 100.25% (SINKING FUND REDEMPTION) 7.625% 1, due February 15, 2003 56 101.13% (OPTIONAL REDEMPTION) 58 *On the redemption date, these bonds will cease to bear interest. **Plus accrued unpaid interest through the redemption date. PREFERENCE STOCK TO BE REDEEMED JANUARY 19, 1999 SERIES PRINCIPAL ($M) REDEMPTION PRICE* $8.40 74 $ 101.00 8.38 74 100.16 2.00 52 26.04 1.96 52 27.11 1.90 106 25.25 7.24 74 101.00 9.25 45 103.00 8.85 19 101.00 8.40B 24 101.00 8.20 14 101.00 $534 *Plus accrued and unpaid dividends through the redemption date. Costs related to the early redemption of long-term debt and preference stock are expected to reduce net income on common stock by $27 million (after tax) in the first quarter of 1999. Notice of redemption of the first mortgage bonds will be published, and registered holders of the first mortgage bonds, sinking fund debentures and preference stock to be redeemed, will be mailed notices of redemption. The Company said it expects to announce further information on debt and equity buy-backs in January. In separate press releases, ComEd announced quarterly dividends for its common stock and three classes of preferred and preference stock that were not called and Unicom announced common stock dividends of 40 cents per share. All dividends are payable February 1, 1999 to shareholders of record at 5 p.m. (New York time) December 31, 1998. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrants have duly caused this report to be signed on their behalf by the undersigned thereunto duly authorized. UNICOM CORPORATION (Registrant) Date: December 17, 1998 By: John C. Bukovski ---------------------- John C. Bukovski Senior Vice President COMMONWEALTH EDISON COMPANY (Registrant) Date: December 17, 1998 By: John C. Bukovski ------------------------ John C. Bukovski Senior Vice President