On January 5, the latest propylene quotation of Dongying Hualian Petrochemical Plant Co., Ltd. was raised, with the ex-factory self-pickup price increased by 30 yuan/ton to 5,683 yuan/ton. The 120,000-ton-per-year propylene plant is operating smoothly. PriceSeek analysis of propylene, long-short score: 1. The ex-factory price of propylene increased by 30 yuan/ton to 5,683 yuan/ton, indicating an increase in market demand or tight supply, which is favorable for spot prices. The smooth operation of the plant does not provide negative signals. This price adjustment is moderate (approximately 0.5%) and is considered a generally favorable factor.