合成橡胶投资周报：宏观利好预期支撑，胶价试探性稳步抬升-20251124

1. Report Industry Investment Rating - Not specified in the provided content 2. Core Viewpoints of the Report - Macro - favorable expectations support the rubber price to steadily rise tentatively. Some cis - butadiene rubber plants are planned for scheduled rotation maintenance, but the overall operating rate is gradually recovering. The trading center of butadiene has moved up, the mainstream supply price of cis - butadiene rubber has been gradually raised, the synthetic processing profit is still good, and the futures price fluctuates strongly [3]. 3. Summary According to Relevant Catalogs 3.1 Market Review - As of November 20, 2025, the ex - factory price of Sinopec's BR9000 was 10,700 yuan/ton, and that of PetroChina's sales companies was between 10,700 - 10,800 yuan/ton. In the Shandong market, the price of cis - butadiene rubber was in a stalemate, with the spot price ranging from 10,000 to 10,800 yuan/ton. The cost support strengthened, driving the supply and market prices to rise slightly, but downstream resistance to price increases emerged [6]. - The report also presents price data of various synthetic rubber products such as butadiene and styrene - butadiene rubber, including ex - factory prices and market prices, as well as their daily and weekly changes [7][8]. 3.2 Supply and Demand Analysis 3.2.1 Supply - Butadiene: Last week, the domestic butadiene production was 115,600 tons (a 1.75% increase), with a capacity utilization rate of 72.53%. Some plants such as Nanjing Chengzhi, Sierbang, and Yanshan Petrochemical remained shut down, while Guangxi Petrochemical stably increased production, leading to an overall increase in total production [3]. - Cis - butadiene rubber: The high - cis cis - butadiene rubber plant of Zhenhua New Materials restarted, the cis - butadiene rubber plant of Zhejiang Petrochemical was shut down for maintenance, and the cis - butadiene plant of Maoming Petrochemical is expected to undergo regular maintenance next week. The high - cis cis - butadiene rubber production last week was 29,200 tons (a 3.88% increase), with a capacity utilization rate of 72.64% [3]. 3.2.2 Demand - Semi - steel tires: The semi - steel tire market remained stable during the period. The all - season tire market was still dull, with channels mainly replenishing inventory based on rigid demand, and the inventory clearance rhythm did not change significantly. The supply of winter tires was abundant, and terminal sales advanced steadily [3]. - All - steel tires: This week, the all - steel tire market was relatively stable compared to last week, with weak trading. Due to the seasonal off - peak season, demand weakened, channel inventory was relatively sufficient, and merchants' willingness to restock was limited. However, as inventory is digested and monthly purchase tasks are due, agents are still expected to make purchases in the next cycle [3]. 3.3 Inventory Analysis - Butadiene: Last week, the port inventory of butadiene was 39,800 tons, a 37.24% increase from the previous week. Most refinery plants were operating stably, but some enterprises' inventory increased due to downstream load and external sales trading rhythm. Port inventory increased due to relatively concentrated vessel arrivals and slow spot price increases [3]. - Cis - butadiene rubber: The combined inventory of high - cis cis - butadiene rubber enterprises and traders was 31,510 tons, a 2.24% increase from the previous week. Raw material buyers were actively following up, the cost support for cis - butadiene rubber strengthened slightly, production enterprise inventory increased, and trading enterprise inventory changed slightly [3]. 3.4 Basis and Spread Analysis - Basis: The basis of cis - butadiene rubber in North China was - 335 yuan/ton, in East China was - 135 yuan/ton, and in South China was - 85 yuan/ton [3]. - Spread/Price Ratio: The RU - BR spread was 4855 yuan/ton (a 1.78% increase); the NR - BR spread was 1900 yuan/ton (a 4.40% increase); the BR - SC price ratio was 0.21 [3]. 3.5 Profit Analysis - Butadiene: The production gross profit from butadiene oxidative dehydrogenation was - 1514 yuan/ton, and that from C4 extraction was 194.88 yuan/ton [3]. - Cis - butadiene rubber: The production gross profit of cis - butadiene rubber was 784 yuan/ton, with a gross profit margin of 7.91% [3]. 3.6 Geopolitical and Macroeconomic Factors - The US Department of Labor reported that the non - farm payrolls in September increased by 119,000, far exceeding the market expectation of 50,000, but the unemployment rate rose to 4.4%. The Department of Labor also revised down the non - farm payroll data for July and August [3]. - US sanctions on top Russian oil companies Rosneft and Lukoil took effect on November 21 [3]. - There are expectations that China and the US will reach an agreement to reduce tariffs on November 27 [3]. - Delegations from Ukraine and the US will hold consultations in Switzerland on the parameters of a possible future peace agreement with Russia [3]. - China has taken counter - measures due to remarks by the Japanese Prime Minister on the Taiwan issue, leading to a deterioration in Sino - Japanese relations [3]. 3.7 Investment Views and Trading Strategies - Investment View: The overall operating rate of cis - butadiene rubber is gradually recovering. The trading center of butadiene has moved up, the mainstream supply price of cis - butadiene rubber has been gradually raised, the synthetic processing profit is still good, and the futures price fluctuates strongly [3]. - Trading Strategy: For unilateral trading, there is no recommendation. For arbitrage, pay attention to going long on BR and short on NR/RU. Key factors to monitor include downstream demand, cost changes, plant maintenance conditions, and geopolitical situations [3].