Our company can supply Calcined Petroleum Coke(low sulfur and middle sulfur) all the year round.Following are the specifications we can supply. The specification of low sulfur CPC: C(carbon) 98.5%min S(sulfur) 0.5%max H2O 0.3%max ASH 0.8%max Volatile 0.7%max Size:1-5mm,90% min or follow buyer's demand. Packing:In 1mt Jumbo Bag or follow buyer's demand. It is usually used in Steel Making as Carburant and the material of Graphite Electrodes. The specification of middle sulfur CPC: C(carbon) 98%min S(sulfur) 2-2.5%max H2O 0.3%max Ash 0.5%max Volatile 0.5%max Real density:(g/cm3) 2.06min Size:Follow buyer's demand. Packing:In 1mt Jumbo Bag or follow buyer's demand It is usually used in Aluminum Industry as the material of Anodes. If you are interested in it, please feel free contact me.