长江期货聚烯烃月报-20260105

Report Industry Investment Rating No relevant information provided. 2. Core Viewpoints - Polyolefins are expected to have limited upside and a weakening oscillation. In December, constrained by continuous supply and weak demand, polyolefin prices repeatedly sought the bottom. Although the downstream demand for PP increased and the BOPP operation rate rebounded, the decline in the PP main contract futures price was smaller than that of PE. Due to intensified geopolitical conflicts in Venezuela during the holiday, the crude oil price on the cost side may be affected. In Q1 2026, the production of polyolefins will slow down, and the expectation of supply reduction will drive the price of polyolefins to rebound. However, overall, the demand improvement is insufficient, and the upside space is still expected to be limited. It is expected that the PE main contract will oscillate weakly within a range, with attention to the support at 6400, and the PP main contract will oscillate weakly, with attention to the support at 6300. The LP spread is expected to widen [8]. - Plastics still face supply - demand contradictions and are expected to oscillate. The prices of various types of plastics, such as LDPE, HDPE, and LLDPE, have decreased to varying degrees. The LLDPE South China basis and the 1 - 5 month spread have also changed. The cost of plastics is affected by factors such as the prices of WTI crude oil and Brent crude oil, and the profit of oil - based and coal - based PE has different trends. The supply side shows a decrease in the production start - up rate and weekly output of polyethylene, while the demand side shows a decline in the start - up rates of downstream industries such as agricultural film and packaging film [8][11][22]. - PP is under great trend pressure and is expected to oscillate weakly in the short term. The price of the PP main contract has decreased, and the prices of related products have also changed. The cost of PP is affected by the prices of WTI crude oil and Brent crude oil, and the profit of oil - based and coal - based PP has decreased. The supply side shows a decrease in the start - up rate of PP petrochemical enterprises and the weekly output of PP pellets, while the demand side shows different trends in the start - up rates of downstream industries such as plastic weaving, BOPP, injection molding, and pipes [52][58][75]. 3. Summary by Relevant Catalogs 3.1 Plastics 3.1.1 Weekly Market Review - On December 31st, the closing price of the plastic main contract was 6472 yuan/ton, with a month - on - month decrease of 4.67%. The average price of LDPE was 8400 yuan/ton, a month - on - month decrease of 6.67%; the average price of HDPE was 6862.50 yuan/ton, a month - on - month decrease of 7.71%; and the average price of LLDPE (7042) in South China was 6518.33 yuan/ton, a month - on - month decrease of 9.30%. The LLDPE South China basis was 46.33 yuan/ton, a month - on - month decrease of 88.40%, and the 1 - 5 month spread was - 202 yuan/ton (- 134) [11]. 3.1.2 Key Data Tracking - Month - to - Month Spread: The 1 - 5 month spread on December 31, 2025, was - 202 yuan/ton, a decrease of 134 yuan/ton compared to November 28, 2025; the 5 - 9 month spread was - 37 yuan/ton, a decrease of 12 yuan/ton; and the 9 - 1 month spread was 239 yuan/ton, an increase of 146 yuan/ton [16]. - Spot Price: The spot prices of different plastics in various regions have different trends and fluctuations. For example, in the Northeast region, the price of HDPE film remained unchanged, while in the North China region, the price of some types of plastics decreased [19]. - Cost: In December, WTI crude oil was reported at 57.41 US dollars/barrel, a decrease of 1.07 US dollars/barrel compared to the previous month, and Brent crude oil was reported at 60.91 US dollars/barrel, a decrease of 1.41 US dollars/barrel. The price of anthracite at the Yangtze River port was 1070 yuan/ton (- 50) [22]. - Profit: The profit of oil - based PE was - 668 yuan/ton, a decrease of 331 yuan/ton compared to the previous month, and the profit of coal - based PE was - 207 yuan/ton, an increase of 30 yuan/ton compared to the previous month [28]. - Supply: The production start - up rate of polyethylene in China this month was 82.64%, a decrease of 1.87 percentage points compared to the end of the previous month. The weekly output of polyethylene was 67.22 tons, a month - on - month decrease of 1.84%. The weekly maintenance loss was 11.09 tons, an increase of 2.41 tons compared to the previous week [33]. - 2026 Production Plan: Multiple companies have production plans for 2026, with a total planned production capacity of 550 tons [36]. - Maintenance Statistics: Many enterprises' plastic production lines have been shut down, and the restart time of some production lines is undetermined [37]. - Demand: The overall start - up rate of domestic agricultural film this week was 38.95%, a decrease of 10.09% compared to the end of the previous month; the start - up rate of PE packaging film was 48.41%, a decrease of 2.29% compared to the end of the previous month; and the start - up rate of PE pipes was 30.17%, a decrease of 1.66% compared to the end of the previous month [39]. - Downstream Production Ratio: Currently, the production ratio of linear film is the highest, accounting for 34.2%, and the difference from the annual average level is 1%. The difference between the current proportion of low - pressure drawing and the annual average data is obvious, currently accounting for 5%, and the difference from the annual average level is 1% [43]. - Inventory: This week, the social inventory of plastic enterprises was 47.51 tons, an increase of 0.85 tons compared to the end of the previous month, a month - on - month increase of 0.76% [45]. - Warehouse Receipts: The number of polyethylene warehouse receipts was 11,353 lots, a decrease of 193 lots compared to the end of the previous month [48]. 3.2 PP 3.2.1 Weekly Market Review - On December 31st, the closing price of the PP main contract was 6348 yuan/ton, a decrease of 61 yuan/ton compared to the end of the previous month, a month - on - month decrease of 0.95% [52]. 3.2.2 Key Data Tracking - Downstream Spot Price: The prices of PP - related products such as PP pellets, PP powder, and PE have different trends. For example, the price of PP pellets (T30S) remained unchanged on January 4, 2026, while the price of PE (7042) increased by 50 yuan/ton [56]. - Basis: On December 31st, the spot price of PP reported by Shengyi.com was 6170 yuan/ton (- 3.04%). The PP basis was - 178 yuan/ton (- 132), and the 1 - 5 month spread was - 40 yuan/ton (- 19) [58]. - Cost: Similar to plastics, the cost is affected by the prices of WTI crude oil and Brent crude oil [67]. - Profit: The profit of oil - based PP was - 632.49 yuan/ton, a decrease of 34.23 yuan/ton compared to the end of the previous month, and the profit of coal - based PP was - 582.64 yuan/ton, a decrease of 2.84 yuan/ton compared to the end of the previous month [75]. - Supply: This week, the start - up rate of Chinese PP petrochemical enterprises was 76.87%, a decrease of 1.27 percentage points compared to the end of the previous month. The weekly output of PP pellets reached 79.37 tons, a week - on - week decrease of 2.99%, and the weekly output of PP powder reached 6.79 tons, a week - on - week increase of 1.88% [78]. - Maintenance Statistics: Many PP production lines of enterprises have been shut down, and the restart time of some production lines is undetermined [82]. - Demand: This week, the average start - up rate of downstream industries was 53.24% (- 0.33). The start - up rate of plastic weaving was 43.74% (- 0.36%), the start - up rate of BOPP was 63.24% (+ 0.64%), the start - up rate of injection molding was 58.35% (- 0.51%), and the start - up rate of pipes was 39.74% (- 2.44%) [84]. - Import and Export Profits: This week, the PP import profit was - 330.70 US dollars/ton, a decrease of 83.74 US dollars/ton compared to the previous month, and the export profit was - 3.74 US dollars/ton, an increase of 8.57 US dollars/ton compared to the previous month [88]. - Inventory: This week, the domestic PP inventory was 49.07 tons (- 7.99%); the inventory of the two major oil companies decreased by 8.04% month - on - month; the inventory of traders decreased by 5.34% month - on - month; and the port inventory decreased by 3.49% month - on - month. The finished product inventory of large - scale plastic - weaving enterprises was 1004.70 tons, a month - on - month decrease of 0.73%, and the BOPP raw material inventory was 10.42 days, a month - on - month increase of 0.58% [90][94]. - Warehouse Receipts: The number of PP warehouse receipts was 15,445 lots, a decrease of 421 lots compared to the end of the previous month [98].