May 2 (Reuters) - Stelco Holdings Inc STLC.TO :
* STELCO REPORTS FIRST QUARTER 2018 RESULTS
* QTRLY REVENUE OF $482 MILLION, UP 25% YEAR-OVER-YEAR
* COMPANY REAFFIRMS Q2 2018 EARNINGS ESTIMATES
* Q1 REVENUE VIEW C$509.7 MILLION -- THOMSON REUTERS I/B/E/S