Recently, there has been a significant divergence in supply and demand in the petroleum coke market. Prices of low-sulphur petroleum coke have weakened due to sluggish demand, while mid and high-sulphur petroleum coke has achieved price recovery driven by restocking demand at low levels. Specifically, the prices of petroleum coke under CNOOC declined this week, with drops ranging from 70 to 270 yuan/mt. PetroChina's northeast refineries saw average sales, with prices holding steady at 3,650 to 3,950 yuan/mt. Some of Sinopec's petroleum coke prices remained stable. Among local refineries, after prices fell to low levels earlier, downstream buying sentiment improved and sales picked up, leading to a shift from price declines to increases for mid and high-sulphur petroleum coke this week.