ST. LOUIS, July 11, 2018 – Arch Coal, Inc. (NYSE:ARCH) will discuss its second quarter 2018 financial results in an investor conference call that will be broadcast live on Tuesday, July 31 at 10:00 a.m. Eastern time.

Interested participants may access the conference call by dialing (800) 930-1344 approximately five to 10 minutes prior to the start time. For participants calling from an overseas location, please dial (719) 457-1506. No passcode is necessary. The call will also be webcast and will be accessible via the "investor" section of the Arch Coal website at http://investor.archcoal.com. Following the live event, a replay and an audio download will be available on the site.

Arch Coal's second quarter earnings release will be distributed via PR Newswire before the market opens on Tuesday, July 31 and will be posted to the company's website at that time.

U.S.-based Arch Coal, Inc. is a top coal producer for the global steel and power generation industries. Arch operates a streamlined portfolio of large-scale, low-cost mining complexes that produce high-quality metallurgical coals in Appalachia and low-emitting thermal coals in the Powder River Basin and other strategic supply regions. For more information, visit www.archcoal.com.