Some more smelters contemplate shutdowns, some are still investing.

Manufacturers of smelter equipments, here is a project you should know about: this little-known smelter is expanding. Meanwhile, here is a world first: here is (scroll way down)
an attempt to integrate a biomass-generated power plant to a smelter in order to save it from loss of energy source. Meanwhile, the extension project of this excellent and otherwise competitive smelter
is delayed by a political dispute around CO2 emission. This major alumina project is put on hold, (scroll way down,) which will hamper more than one aluminum producer. This smelter may contemplate shutdown because an energy contract will not be renewed. This government is buying back its sole smelter because it cannot afford a shutdown which opens opportunities for innovative power integration solutions.