President Donald Trump and his administration's tariff on imported steel from all countries except Canada and Mexico emphasizes the bullish case for Century Aluminum Co CENX 0.55%, according to JPMorgan. The Analyst JPMorgan's Michael Gambardella upgraded Century Aluminum's stockrating from Neutral to Overweight with a price target lifted from $18 to $29. SourceSome downside still holds. $CENX, Century Aluminum Company / D