US aluminium producer Alcoa's fourth-quarter profit and revenue fell short of market estimates as higher power prices in Spain coupled with ongoing droughts in Brazil that hampered bauxite production, increased expenses. The Brazilian drought, which led to an extreme water shortage throughout the South American nation, hindered production of bauxite, an aluminium ore generally covered in multiple layers of rock and clay that require a crushing or washing plant for processing, as well as ...Den vollständigen Artikel lesen ...