FORT WAYNE, Ind., Dec. 16, 2015 /PRNewswire/ -- Steel Dynamics, Inc. (NASDAQ/GS: STLD) today, the company provided fourth quarter 2015 earnings guidance in the range of $0.03 to $0.07 per diluted share, compared to sequential third quarter 2015 earnings of $0.25 per diluted share and prior year fourth quarter adjusted earnings of $0.40 per diluted share, which excluded non-cash fixed asset impairment charges related to the company's Minnesota Operations and certain post-acquisition costs related to the company's Columbus steel mill acquisition.