On Wednesday, the base metals sector experienced broad-based gains.
Shares of Alcoa (AA.US) climbed more than 5%.
Freeport-McMoRan (FCX.US), Vale (VALE.US), Southern Copper (SCCO.US), and Rio Tinto (RIO.US) all saw increases exceeding 2%.
Shares of Century Aluminum (CENX.US) rose more than 1%.