Exhibit 99.1

SunCoke Energy, Inc. Announces Pricing of Senior Notes Offering by SunCoke Energy Partners, L.P.

LISLE, Ill.—(BUSINESS WIRE)— Jan. 18, 2013— SunCoke Energy, Inc. (NYSE:SXC) (SunCoke) announced today that its wholly-owned subsidiary, SunCoke Energy Partners, L.P., a Delaware limited partnership (the Partnership) and SunCoke Energy Partners Finance Corp., a wholly-owned subsidiary of the Partnership (the co-issuer), has priced an offer to sell $150 million in aggregate principal amount of 7.375% senior unsecured notes due 2020 (the notes) in a private placement to eligible purchasers. The notes offering is expected to close on or about January 24, 2013 in connection with the closing of the Partnership’s initial public offering of common units representing limited partner interests in the Partnership.

Each of the Partnership’s existing subsidiaries (other than the co-issuer) and certain future subsidiaries will guarantee the notes.

The securities to be offered have not been registered under the Securities Act of 1933, as amended, (the “Securities Act”), or any state securities laws, and unless so registered, the securities may not be offered or sold in the United States except pursuant to an exemption from, or in a transaction not subject to, the registration requirements of the Securities Act and applicable state securities laws. The Partnership plans to offer and issue the notes only to qualified institutional buyers pursuant to Rule 144A under the Securities Act and to persons outside the United States pursuant to Regulation S.

This press release is being issued pursuant to Rule 135c under the Securities Act, and is neither an offer to sell nor a solicitation of an offer to buy the notes or any other securities and shall not constitute an offer to sell or a solicitation of an offer to buy, or a sale of, the notes or any other securities in any jurisdiction in which such offer, solicitation or sale is unlawful.

ABOUT SUNCOKE ENERGY INC.

SunCoke Energy, Inc. is the largest independent producer of metallurgical coke in the Americas, with more than 50 years of experience supplying coke to the integrated steel industry. Our advanced, heat recovery cokemaking process produces high-quality coke for use in steelmaking, captures waste heat for derivative energy resale and meets or exceeds environmental standards. Our cokemaking facilities are located in Virginia, Indiana, Ohio, Illinois and Vitoria, Brazil, and our coal mining operations, which have more than 114 million tons of proven and probable reserves, are located in Virginia and West Virginia. To learn more about SunCoke Energy, Inc., visit our website at www.suncoke.com.

FORWARD LOOKING STATEMENTS

Some of the statements included in this press release constitute “forward looking statements” (as defined in Section 27A of the Securities Act of 1933, as amended and Section 21E of the Securities Exchange Act of 1934, as amended). Such forward-looking statements are based on management’s beliefs and assumptions and on information currently available. You should not put undue reliance on any forward-looking statements. Forward-looking statements include all statements that are not historical facts and may be identified by the use of forward looking terminology such as the words “believe,” “expect,” “plan,” “project,” “intend,” “anticipate,” “estimate,” “predict,” “potential,” “continue,” “may,” “will,” “should” or the negative of these terms or similar expressions. Forward-looking statements involve risks, uncertainties and assumptions.

Risks and uncertainties that could cause actual results to differ materially from those expressed in forward-looking statements include economic, business, competitive and/or regulatory factors affecting the Company’s business, as well as uncertainties related to the outcomes of pending or future litigation, legislation, or regulatory actions. Unpredictable or unknown factors not discussed in this release also could have material adverse effects on forward-looking statements.

In accordance with the safe harbor provisions of the Private Securities Litigation Reform Act of 1995, SunCoke has included in its filings with the Securities and Exchange Commission cautionary language identifying important factors (but not necessarily all the important factors) that could cause actual results to differ materially from those expressed in any forward-looking statement made by SunCoke. For more information concerning these factors, see SunCoke’s Securities and Exchange Commission filings. All forward-looking statements included in this press release are expressly qualified in their entirety by such cautionary statements. SunCoke does not have any intention or obligation to update any forward-looking statement (or its associated cautionary language), whether as a result of new information or future events, after the date of this press release, except as required by applicable law.

Source: SunCoke Energy, Inc.

Investors:

Ryan Osterholm: 630-824-1907

or

Media:

Anna Rozenich: 630-824-1945