FILE PHOTO: Brazilian mining company Vale SA logo and trading symbol are displayed on a screen at the New York Stock Exchange (NYSE) in New York, U.S., December 6, 2017. REUTERS/Brendan McDermid//File Photo
FILE PHOTO: Brazilian mining company Vale SA logo and trading symbol are displayed on a screen at the New York Stock Exchange (NYSE) in New York, U.S., December 6, 2017. REUTERS/Brendan McDermid//File Photo