This data set refers to the production of alumina specifically intended for use in metallurgy. The alumina produced from this process is derived from bauxite and is used primarily in the aluminum smelting industry to produce metallic aluminum through the Hall-Héroult process. Users of this data should take note that the LCA data includes information on the production of alumina (PA), supporting activities (SA), electricity, and other background data. The methodological considerations for utilizing this data should include the sources from which the PA and SA data are obtained, specifically statistical data and relevant literature. In addition, users should ensure that their LCA models align with the localized Chinese context by incorporating the background data from the CAS RCEES 2018 database, encompassing aspects such as energy, materials, transportation, and waste management within their analyses.