Alumina Manufacturers: Who Refines What
Lists of producers disagree because one counts installed capacity and another counts output. Here is who refines alumina, on which measure, and as of when.
Data as of
See the producersManufacturers and suppliers
Who produces each material, ranked on a stated measure, with the capacity figure, its source and the year it refers to. No quality rankings and no list padded out to a round number.
Every page states its ranking axis and its cutoff date, because a producer list without either is a list of names. Company pages link back to the material guide that explains the grades those producers are selling.
Silicon Carbide Manufacturers: Two Forms
Silicon carbide manufacturers and suppliers split into two chains: abrasive grit sold by the tonne, and substrates sold by the wafer.
Data as of
See the producers