Siberian-Urals Aluminium Company comprises 19 businesses involved in the production of a chemical compound that naturally in what crystalline polymorphic phase?
SUAL Group: Siberian-Urals Aluminium Company (Russian: Сибирско-Уральская Алюминиевая Компания ), commonly known as SUAL (Russian: СУАЛ ), is a fully vertically integrated aluminium company that ranks amongst the world's top ten aluminium producers. SUAL Group:  It comprises 19 businesses that are located in nine Russian regions and are involved in the production of bauxite, alumina, primary aluminium, silicon, semi-finished and finished aluminium products.
i don't know