On February 3, Yatong Petrochemical quoted petroleum coke at 1,670 yuan/ton, up by 20 yuan/ton compared to the previous trading day, with a sulfur content of 4.0. The delayed coking unit has an annual capacity of 1.2 million tons and a daily output of 850 tons. PriceSeek analysis of petroleum coke, with a long-short score: 1. The spot price of petroleum coke increased by 20 yuan/ton compared to the previous trading day, indicating a possible tightening of market supply or strengthening demand. For instance, Yatong Petrochemical's daily output of 850 tons does not show an increase in production, suggesting that this price hike may reflect rising raw material costs or improved downstream purchasing enthusiasm, driving short-term positive sentiment in spot prices. The score of +1 represents a generally positive outlook, as the increase is relatively moderate and not driven by major events.