Pittsburgh-based Alcoa (NYSE:AA), another of the world's largest aluminum-producing companies, currently operates two bauxite mines, two alumina refineries and one aluminum smelter in Australia.

Century, the largest producer of primary aluminum ... If tariffs push up the prices of steel and aluminum, companies using the metals in their products may pass the extra costs on to consumers ...

Reliance on volatile electricity markets and expensive fossil fuels has left our domestic industry in a dire position.

At these downstream companies, production fell by nearly $3.5 billion ... Minnesota and New York. Canada, the largest foreign supplier of steel and aluminum to the United States, responded with its ...