1. Report Industry Investment Rating - Not provided in the given content 2. Core View of the Report - The supply - demand pattern of polyolefins remains unchanged, with a weak trading atmosphere. It is expected that polyolefins will fluctuate weakly in the near term. Due to the possible new capacity of plastics coming into operation this year and the gradual end of the peak season for agricultural films, the L - PP spread is expected to continue to decline [3] 3. Summary by Relevant Catalogs 3.1 Plastic and PP开工率 (Plastic and PP Operating Rates) - Plastic operating rate dropped 4 percentage points to around 86% due to new maintenance devices such as Qilu Petrochemical LDPE, currently at a neutral level [10] - PP operating rate dropped 2 percentage points to around 83% due to new maintenance devices such as Yulong Petrochemical's fifth line, at a slightly below - neutral level [10] 3.2 Plastic and PP下游开工率 (Plastic and PP Downstream Operating Rates) - As of the week of December 19, PE downstream operating rate decreased by 0.55 percentage points to 42.45%. Agricultural film is gradually exiting the peak season, and orders continue to decline. The overall PE downstream operating rate is still at a relatively low level in the same period in recent years [16] - As of the week of December 19, PP downstream operating rate decreased by 0.19 percentage points to 53.80%, at a relatively low level in the same period over the years. The operating rate of the plastic weaving industry, the main downstream of drawn yarn, decreased by 0.06 percentage points to 44.00%, and orders continued to decline slightly, slightly lower than the same period last year [16] 3.3 Plastic基差 (Plastic Basis) - The decline of the spot price is smaller than that of the futures price. The basis of the 05 contract rose to 330 yuan/ton, at a neutral level [20] 3.4 Plastic and PP库存 (Plastic and PP Inventories) - On Friday, the petrochemical early - morning inventory decreased by 10,000 tons to 660,000 tons, 75,000 tons higher than the same period last year. Recently, petrochemical inventory reduction is slow, and the current petrochemical inventory is at a relatively high level in the same period in recent years [24]