China calcined coke price is already the all-time high, but the current market supply is still limited, adding environmental supervision of China government, most of the producers are no inventory, meanwhile, the consumers of calcined petroleum coke also is in low inventory, and difficult to procurement from the market. With the strict requirements of environmental protection, all the carbon plants have to improve the requirements of raw materials, more consumers expect to use mid or low sulfur petroleum coke in their carbon productions to avoid the emissions exceed the standard, which makes mid or low sulfur petroleum coke increase a lot, so the market is expected to China mid or low sulfur petroleum coke prices will continue to rise, while the high sulfur coke prices will stabilize.