Guru Corporation With a wealth of industry knowledge and experience, we manufacture, export, and sell high-quality calcined petroleum coke. This is used to make titanium dioxide, aluminium, steel, electrodes, and other goods. Calcined Petroleum Coke Supplier And Manufacturer in Ahmedabad. This is obtained by several coal subsidiaries, who then use premium minerals to refine it. Because of its precise composition, purity, potency, and dependability, customers value the coal that is given.