LONDON (Standard&Poor's) April 13, 2015--Standard&Poor's Ratings Services said today that its ratings on the following companies are unchanged by its iron-ore price assumption revision: ArcelorMittal (BB/Stable/B), NLMK OJSC (BB+/Stable/--), PAO Severstal (BB+/Negative/--), Evraz Group S.A. (B+/Stable/--), JSC Holding Company Metalloinvest (BB/Negative/--), Companhia Siderurgica Nacional (CSN; BB/Stable/--), Samarco Mineracao S.A. (BBB-/Stable/--), and Cliffs Natural Resources Inc. (B/Stable/--). We have lowered our price assumptions for iron ore to US$45 per ton (US$/te) for the rest of 2015, to US$50/te for 2016, and to US$55/te for 2017, on April 13, 2015 (see "Standard&Poor's Revises Its Iron Ore Price Assumptions," published April 13, 2015, on RatingsDirect). This compares with our previous price assumptions of US$65/te in 2015, US$65/te
