Suncoke Energy, Inc. (SXC) SEC Filing 10-K Annual report for the fiscal year ending Monday, December 31, 2018

Exhibit 99.1

Investors and Media:

Andy Kellogg & Kory Kutzke

(630) 824-1907

SUNCOKE ENERGY, INC. ANNOUNCES STRONG FULL-YEAR 2018 RESULTS ABOVE GUIDANCE RANGE AND PROVIDES GUIDANCE FOR FURTHER GROWTH IN 2019

LISLE, Ill. (February 5, 2019) - SunCoke Energy, Inc. (NYSE: SXC) (the “Company”) today reported fourth quarter and full-year 2018 results, reflecting strong operating performances from our coke and logistics businesses.

“Our fourth quarter results contributed to the Company’s highest annual Adjusted EBITDA performance since 2012 and illustrate the strength of our businesses as well as the continued progress on our asset performance improvement initiatives,” said Mike Rippey, President and Chief Executive Officer of SunCoke Energy, Inc. “In 2018, we delivered strong operating results, which included exceptional operational improvement at Indiana Harbor driven by sound execution on our oven rebuild initiative as well as record volumes at Convent Marine Terminal.”

Looking forward, the Company expects 2019 consolidated Adjusted EBITDA to be between $265 million and $275 million, reflecting continued improvement in our coke and logistics businesses.

In addition, the Company also announced it has entered into a definitive merger agreement with SunCoke Energy Partners, L.P. (NYSE: SXCP) whereby SXC will acquire all outstanding common units of SXCP not already owned by SXC in a stock-for-unit exchange transaction (“Simplification Transaction”). Pursuant to the terms of the merger agreement, SXCP unaffiliated common unitholders will receive 1.40 SXC common shares for each SXCP common unit.

Rippey continued, “As we move forward into 2019, we remain focused on operational excellence, including the execution of the final phase of the Indiana Harbor rebuild initiative, as well as successfully completing the Simplification Transaction, which we believe will unlock our full potential. We are confident that we can again execute against our objectives and deliver significant value to SunCoke shareholders.”