ST. LOUIS , July 14, 2014 /PRNewswire/ -- Arch Coal, Inc. (NYSE:ACI) will discuss its second quarter 2014 financial results in a conference call that will be webcast live on Tuesday, July 29 at 11:00 a.m. Eastern time .
Arch's second quarter cash margin per ton expands 71% versus first quarter Strong second quarter cost control drives full year 2014 cost guidance reduction
Arch enhances metallurgical platform to lower costs and improve quality ST.
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