In the current petroleum coke market, refineries are showing a clear weakening trend in sales, with downstream enterprises adopting a cautious approach to purchases, leading to a fluctuating and declining trend in refinery petroleum coke prices. In detail, this week, the petroleum coke prices under CNOOC have mainly declined, with drops ranging from 300 to 350 yuan/mt. For PetroChina's refineries in north-east China, sales have been average this week. Due to abundant supply, petroleum coke prices have been lowered again, generally by 200 yuan/mt, with the current price range being 3,350 to 3,650 yuan/mt. As for local refineries, sales have been ordinary during the week. Affected by the decline in low-sulphur petroleum coke prices, petroleum coke prices have also fallen, with mid and high-sulphur petroleum coke prices showing a certain degree of weakness this week.