We can supply calcined petroleum coke all the year round. If you are interested in it, please feel free contact me. 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 buyerí»s demand. Packing: in 1mt jumbo bag or follow buyerí»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 buyerí»s demand. Packing: in 1 mt jumbo bag or follow buyer's demand It is usually used in aluminum industry as the material of anodes