ComEd Announces $1.0 Billion Bond Sale

ComEd demonstrates its commitment to diversity by including five diverse financial institutions in its bond offering

ComEd announced that is has closed on the sale of $1.0 billion aggregate principal amount of its First Mortgage Bonds, comprised of $350 million 10-year bonds and $650 million 30-year bonds maturing on August 15, 2027 and August 15, 2047, respectively. The 10-year bonds have a coupon of 2.95% percent and the 30-year bonds have a coupon of 3.75% percent. ComEd will use the net proceeds from the sale of the bonds to refinance outstanding principal amounts of long term debt, repay a portion of its outstanding commercial paper obligations, and for general corporate purposes.

Wells Fargo Securities LLC, U.S. Bancorp Investments Inc., Mizuho Securities USA LLC, and Scotia Capital (USA) Inc. led the offering as active joint book-running managers. SMBC Nikko Securities America Inc. and CIBC World Markets Corp. served as passive joint book-running managers. Minority-owned The Williams Capital Group L.P. and Loop Capital Markets LLC, along with KeyBanc Capital Markets Inc., served as senior co-managers. Minority-owned Blaylock Van LLC, Melvin Securities LLC and Samuel A. Ramirez & Company Inc. served as co-managers for the offering. The selection of minority-owned banks to co-manage the offering is a deliberate investment in the communities that we serve.

An automatic shelf registration statement relating to the sale of the bonds became effective upon filing with the Securities and Exchange Commission on April 28, 2017. This press release does not constitute an offer to sell or a solicitation of an offer to buy the securities described herein, nor shall there be any sale of these securities in any state or jurisdiction in which such an offer, solicitation or sale would be unlawful prior to registration or qualification under the securities law of any such jurisdiction. The offering of the bonds may only be made by means of a prospectus and related prospectus supplement, copies of which may be obtained at no cost by visiting EDGAR on the SEC's website at www.sec.gov or by calling Wells Fargo Securities, LLC at 1-800-645-3751, U.S. Bancorp Investments Inc. at 1-877-558-2607, Mizuho Securities USA LLC at 1-866-271-7403 or Scotia Capital (USA) Inc. at 1-800-372-3930.

Cautionary Statements Regarding Forward-Looking Information

This Press Release contains certain forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 that are subject to risks and uncertainties. The factors that could cause actual results to differ materially from the forward-looking statements made by ComEd include those discussed herein as well as the items discussed in (1) ComEd's 2016 Annual Report on Form 10-K in (a) ITEM 1A. Risk Factors, (b) ITEM 7. Management's Discussion and Analysis of Financial Condition and Results of Operations and (c) ITEM 8. Financial Statements and Supplementary Data: Note 23; (2) ComEd's Second Quarter 2017 Quarterly Report on Form 10-Q in (a) Part II, Other Information, ITEM 1A. Risk Factors; (b) Part 1, Financial Information, ITEM 2. Management's Discussion and Analysis of Financial Condition and Results of Operations and (c) Part I, Financial Information, ITEM 1. Financial Statements: Note 18; and (3) other factors discussed in filings with the Securities and Exchange Commission by ComEd. Readers are cautioned not to place undue reliance on these forward-looking statements, which apply only as of the date of this Press Release. ComEd undertakes no obligation to publicly release any revision to its forward-looking statements to reflect events or circumstances after the date of this Press Release.

Commonwealth Edison Company (ComEd) is a unit of Chicago-based Exelon Corporation EXC, the nation's leading competitive energy provider, with approximately 10 million customers. ComEd provides service to approximately 3.9 million customers across northern Illinois, or 70 percent of the state's population. For more information visit ComEd.com, and connect with the company on Facebook, Twitter and YouTube.

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