1. Report Industry Investment Rating - Not provided in the content 2. Core Viewpoints - The synthetic rubber is expected to operate weakly within the valuation range in the short - term, with the upper pressure at 10,600 - 10,570 yuan/ton and the lower support at 9,800 - 9,900 yuan/ton. The NR - BR spread is expected to oscillate at a high level. The butadiene is expected to oscillate in the short - term and maintain a low - level oscillation in the medium - term [2][4] - The butadiene is currently in the supply - demand pricing stage, with a low correlation with the raw material end [10] 3. Summary by Relevant Catalogs 3.1 Synthetic Rubber 3.1.1 Supply - This cycle, the output of high - cis butadiene rubber was 29,500 tons, a 4.76% increase from the previous cycle, and the capacity utilization rate was 73.53%, a 3.34 - percentage - point increase. Next cycle, Gaoqiao Petrochemical and Zhenhua New Materials are expected to resume production [4] - Some enterprises' production schedules are lower than normal levels, and some enterprises still have maintenance arrangements, which limit the increase in capacity utilization [4] 3.1.2 Demand - In terms of rigid demand, the capacity utilization rate of sample tire enterprises is expected to increase next cycle, but the increase is limited due to slow shipment and production control by enterprises. In terms of substitution demand, the NR - BR spread remains high, and the overall demand for butadiene rubber maintains a high year - on - year growth rate [4] 3.1.3 Inventory - As of December 3, 2025, the domestic butadiene rubber inventory was 32,300 tons, a 0.34% decrease from the previous cycle. The inventory of sample production enterprises increased, while that of sample trading enterprises decreased slightly [4] 3.1.4 Valuation - The static valuation range of butadiene rubber futures fundamentals is 9,700 - 10,700 yuan/ton. The valuation logic has switched, with the NR - BR spread supporting the lower valuation and the cost line of butadiene also providing support. The upper valuation of the disk is around 10,600 - 10,700 yuan/ton [4] 3.1.5 Strategy - Unilateral: Operate weakly within the short - term fundamental valuation range, with upper pressure at 10,600 - 10,570 yuan/ton and lower support at 9,800 - 9,900 yuan/ton. Cross - variety: The NR - BR spread is at a high valuation and is expected to oscillate at a high level [4] 3.2 Butadiene 3.2.1 Supply - This cycle (20251128 - 1204), the estimated weekly output of Chinese butadiene industry sample enterprises was 112,200 tons, a 0.80% decrease from the previous cycle. Next week, it is expected to be about 113,500 tons, an increase from this cycle [5] - Due to the high ethylene cracking start - up in China in the fourth quarter, the domestic butadiene output and imports are at a year - on - year high. However, the Asian regional start - up rate has declined, resulting in a slight reduction in butadiene supply [4] 3.2.2 Demand - In the medium - term, the start - up rates of butadiene rubber and styrene - butadiene rubber remain high, and the demand for butadiene maintains a year - on - year high. In the short - term, the rigid demand for butadiene from synthetic rubber is expected to increase in December. The demand from ABS is expected to remain constant, and that from SBS remains stable [4][7] 3.2.3 Inventory - This cycle (20251127 - 1203), the total inventory of domestic butadiene samples decreased by 7.41% from the previous week. The inventory of sample enterprises increased slightly, and the port inventory decreased by 13.11%. As of December 3, the latest inventory in East China ports was about 41,100 tons, a decrease of 6,200 tons from the previous cycle. The inventory is still at a relatively high level [7] 3.2.4 Viewpoint - In the short - term, the low absolute price drives downstream periodic restocking, the transaction improves, and the price stabilizes. The Asian butadiene start - up rate has declined slightly, and the fundamental pattern has improved marginally. In the medium - term, the high supply of butadiene remains the main contradiction, and the price is expected to maintain a low - level oscillation [5] 3.3 Capacity Expansion 3.3.1 Butadiene - In 2024, the total new capacity was 380,000 tons; in 2025, it was 940,000 tons; and it is expected to be 620,000 tons in 2026. The expansion speed and amplitude of butadiene are slightly faster than those of its downstream industries [12][14] 3.3.2 Downstream Products of Butadiene - **Butadiene Rubber**: The capacity increased by 200,000 tons in 2025 and is expected to increase by 190,000 tons in 2026 [20] - **Styrene - Butadiene Rubber**: The capacity increased by 60,000 tons in 2025 and is expected to increase by 220,000 tons in 2026 [22][23] - **ABS**: The capacity is expected to increase by 1,635,000 tons in 2025 and 1,300,000 tons in 2026 [30][32] - **SBS**: The capacity increased by 360,000 tons in 2025 and is expected to increase by 55,000 tons in 2026 [34][35]

Report Information - Report Title: Synthetic Rubber Weekly Report [1] - Report Date: November 23, 2025 [1] - Research Institute: Guotai Junan Futures Research Institute [1] - Analyst: Yang Honghan [1] Industry Investment Rating No information provided. Core Views - **Synthetic Rubber**: Synthetic rubber is expected to operate weakly within the valuation range. The supply of high - cis butadiene rubber has increased, while the demand from the tire industry has limited improvement, and the inventory has increased. The valuation logic has shifted, and the mid - term strategy is to go short on rallies [2][4][6]. - **Butadiene**: Butadiene is expected to be in a short - term volatile and long - term weak trend. The supply pressure is the main contradiction, and the inventory has increased significantly [9]. Summary by Directory Synthetic Rubber Supply - This cycle, Zhejiang Petrochemical continued its shutdown for maintenance, and Zhenhua New Material's butadiene rubber unit restarted. The production of high - cis butadiene rubber was 29,200 tons, a week - on - week increase of 3.88%. The capacity utilization rate was 72.53%, a week - on - week increase of 2.72 percentage points. Next cycle, Maoming Petrochemical's butadiene rubber unit is expected to shut down for maintenance [4]. Demand - **Tire Demand**: This week, the capacity utilization rate of tire sample enterprises decreased. Next cycle, it is expected to recover, but the overall demand increase is limited. - **Substitute Demand**: The NR - BR main contract spread remains high, and the substitute demand is also high, so the overall demand for butadiene rubber maintains a year - on - year high growth rate [4]. Inventory - As of November 19, 2025, the domestic butadiene rubber inventory was 31,500 tons, a week - on - week increase of 2.24%. The inventory of sample production enterprises increased, and the inventory of sample trading enterprises changed slightly [5]. Valuation - The static valuation range of butadiene rubber futures is 9,700 - 10,700 yuan/ton. The valuation logic has shifted from cost - side support to NR - BR spread support. The upper limit of the fundamental valuation is 10,600 - 10,700 yuan/ton, and the lower limit is supported by the NR - BR spread and butadiene cost [5]. Strategy - **Single - sided**: Adopt a mid - term strategy of shorting on rallies without chasing short positions. The upper pressure is 10,600 - 10,700 yuan/ton, and the lower support is 9,600 - 9,700 yuan/ton [6]. - **Cross - variety**: The NR - BR spread is at a high valuation and is expected to fluctuate at a high level [7]. Butadiene Supply - This cycle, the estimated weekly output of Chinese butadiene industry sample enterprises was 115,600 tons, a week - on - week increase of 3.67%. Next week, the output is expected to be about 115,000 tons, a slight decrease [9]. Demand - **Synthetic Rubber**: The mid - term operating rates of butadiene rubber and styrene - butadiene rubber remain high, and the demand for butadiene maintains a year - on - year high. In December, with the reduction of butadiene rubber unit maintenance, the rigid demand for butadiene is expected to increase. - **ABS**: The inventory pressure is high, and the demand for butadiene is expected to remain constant with limited incremental demand. - **SBS**: The operating rate has increased slightly, and the demand for butadiene remains rigid with little change [11]. Inventory - From November 13 - 19, 2025, the total inventory of domestic butadiene samples increased significantly, a week - on - week increase of 17.99%. The inventory of sample enterprises increased by 1.17%, and the inventory of sample ports increased by 37.24%. As of November 19, the inventory at East China ports was about 39,800 tons, an increase of 10,800 tons from the previous cycle [11]. View - In the short term, the low absolute price drives downstream periodic replenishment, the trading improves, and the price stabilizes. In the long term, the supply pressure is the main contradiction, and the fundamental pressure is still high, so it is expected to be in a weak pattern [9].

Report Summary 1. Industry Investment Rating No investment rating is provided in the report. 2. Core Viewpoints - The synthetic rubber market is expected to face pressure and remain volatile. The supply of high - cis butadiene rubber is increasing, while the demand from tire manufacturers is expected to decline. The substitution demand remains high, but the overall inventory has increased. In the short - term, after a rebound, the market will return to a volatile and pressured pattern. [2][3][4] - The butadiene market is currently in a state of supply - demand pricing, with a low correlation with the raw material end. In the short - term, it will be volatile, but in the medium - long term, it is expected to be in a weak pattern due to high supply pressure. [5][8] 3. Summary by Directory 3.1 Butadiene - **Supply** - In the current cycle (20251107 - 1113), the estimated weekly output of Chinese butadiene sample enterprises was 11.15 million tons, a week - on - week increase of 0.22 million tons (+2.05%). Next week, the output is expected to reach about 11.55 million tons. [5] - From 2024 to 2025, many new butadiene production capacities have been put into operation, with a total of 38 million tons in 2024 and 86 million tons in 2025. [10][12] - There are many device maintenance plans from 2024 to 2025, which will affect the supply in different periods. [16] - **Demand** - In the medium - term, the high operating rates of butadiene rubber and styrene - butadiene rubber maintain a high year - on - year demand for butadiene. In the short - term, with the maintenance of butadiene rubber plants in November, the rigid demand procurement is expected to decline. [5] - The inventory pressure of ABS is relatively large, and its demand for butadiene is expected to remain constant with limited growth. The operating rate of SBS has increased slightly, maintaining rigid demand for butadiene. [5] - **Inventory** - From 20251107 - 1112, the total inventory of domestic butadiene samples continued to fluctuate slightly, with a week - on - week increase of 0.42%. The inventory of sample enterprises increased by 3.30% week - on - week, while the port inventory decreased by 2.68% week - on - week. There are still expectations of relatively concentrated ship arrivals in the later period. [5] 3.2 Synthetic Rubber (High - Cis Butadiene Rubber) - **Supply** - In the current cycle, the production capacity utilization rate of high - cis butadiene rubber has recovered. The output in this cycle was 2.80 million tons, an increase of 0.16 million tons (+5.92%) compared with last week, and the production capacity utilization rate was 69.92%, a week - on - week increase of 3.90 percentage points. [4] - Some devices are planned for maintenance in the future, which may affect the supply situation. [4] - **Demand** - In terms of rigid demand, the production capacity utilization rate of tire sample enterprises is expected to decline further. In terms of substitution demand, the spread between NR - BR main contracts remains high, and the substitution demand is also high, so the overall demand side maintains a high year - on - year growth rate. [4] - **Inventory** - As of November 12, 2025, the domestic high - cis butadiene rubber inventory was 3.08 million tons, an increase of 0.15 million tons (+5.22%) compared with the previous cycle. The inventory of sample production enterprises and sample trading enterprises has increased. [4] - **Valuation** - The current static valuation range of butadiene rubber futures fundamentals is 9700 - 10600 yuan/ton. The valuation logic has shifted from cost - end support to NR - BR spread support. [4] - **Strategy** - For unilateral trading, adopt a medium - term short - selling approach on rallies, and avoid chasing short positions. The intraday trading may show wide - range fluctuations due to capital games. The upper pressure is 10500 - 10600 yuan/ton, and the lower support is 9600 - 9700 yuan/ton. - For cross - variety trading, the NR - BR spread is at a high level and is expected to fluctuate at a high level. [4]

Report Overview - Report Title: Synthetic Rubber Weekly Report - Report Date: November 9, 2025 - Report Author: Yang Honghan - Report Institution: Guotai Junan Futures Research Institute 1. Report Industry Investment Rating - Not provided in the report 2. Report Core View - The short - term trend of synthetic rubber is volatile, and the fundamentals still face pressure. The production capacity utilization rate of high - cis butadiene rubber decreased. In the medium term, a strategy of shorting on rallies is recommended, without chasing short positions. The nr - br spread is expected to oscillate at a high level [2][4]. - Butadiene is in a weak operating state. In the short term, the low absolute price drives downstream replenishment, leading to improved trading and price stabilization. In the medium - long term, supply pressure remains the primary contradiction, and the fundamentals are still under significant pressure [6]. 3. Summary by Relevant Catalogs 3.1 Synthetic Rubber 3.1.1 Supply - During the cycle, the butadiene rubber plants of Yangzi Petrochemical, Zhejiang Petrochemical, and Zhenhua New Materials were shut down for maintenance, while the butadiene rubber plant of Sichuan Petrochemical restarted. The production capacity utilization rate further declined. The output of high - cis butadiene rubber was 26,500 tons, a decrease of 400 tons from last week, a month - on - month decrease of 1.31%, and the production capacity utilization rate was 66.02%, a month - on - month decrease of 0.88 percentage points. It is expected that Yangzi Petrochemical's butadiene rubber plant will restart in the next cycle, and the Maoming butadiene plant and Zhejiang Transfar's 120,000 - ton/year rare - earth butadiene rubber plant are scheduled for maintenance at the end of November and in December respectively [4]. 3.1.2 Demand - In terms of rigid demand, the production capacity utilization rate of tire sample enterprises increased slightly during the cycle. It is expected that the production capacity utilization rate of sample enterprises will remain stable with a slight downward trend in the next cycle. The production of most enterprises will remain stable to meet order demands, but it is reported that some enterprises have maintenance plans in the middle of the month, which may drag down the overall production capacity utilization rate. In terms of alternative demand, the current spread between the nr - br main contracts remains high, and the alternative demand also remains at a high level. Therefore, the overall demand side of butadiene rubber maintains a high year - on - year growth rate [5]. 3.1.3 Inventory - As of November 5, 2025, the domestic butadiene rubber inventory was 29,300 tons, a decrease of 1,600 tons from the previous cycle, a month - on - month decrease of 5.15%. During the cycle, the supply of raw material butadiene was sufficient, and the negotiation focus continued to decline. Under the continuous negative drag of the cost side, industry players generally had a clear expectation of the continuous decline of the recent market. Downstream price - pressing procurement led to a significant decline in the negotiation focus of private resources. At the same time, the output was affected by the maintenance of some production enterprises, the circulating supply of goods was limited, resulting in the spot offer being significantly higher than that of private resources, and the sales performance was blocked. The inventories of sample production enterprises and sample trading enterprises both decreased [5]. 3.1.4 Valuation - Currently, the static valuation range of butadiene rubber futures fundamentals is 9,500 - 10,400 yuan/ton. The valuation logic has shifted from cost - side support for the lower - end valuation to the nr - br spread providing support for the lower - end valuation. For the upper - end valuation, 10,300 - 10,400 yuan/ton on the futures market may be the high point of the fundamental upper - end valuation. When the main contract BR2501 has a premium of about 100 yuan/ton over the market price in Shandong (the single - month holding cost is around 90 yuan/ton), there is a risk - free arbitrage opportunity of holding spot and shorting futures on the market, and hedging positions will gradually increase the pressure on the upside space of the futures market [5]. 3.2 Butadiene 3.2.1 Supply - In the current cycle (from October 31 to November 6, 2025), the estimated weekly output of Chinese butadiene industry sample enterprises was 109,200 tons, an increase of 5,100 tons from the previous cycle, a month - on - month increase of 4.85%. During the week, the plants of Nanjing Chengzhi, Sierbang, Yanshan Petrochemical, Guangzhou Petrochemical, and Zhenhai Refining & Chemical remained shut down, but the plants of Jilin Petrochemical Phase I, Fushun Petrochemical, and Sichuan Petrochemical resumed production, resulting in a continuous increase in output. Next week, it is expected that the weekly output of Chinese butadiene sample enterprises will be around 112,500 tons, continuing to increase from the current cycle. There are no new plant shutdown and maintenance plans in the next cycle, and the previously restarted plants will stably release output, leading to a continuous recovery of the output of domestic operating plants. At the same time, pay close attention to the output of Guangxi Petrochemical [6]. 3.2.2 Demand - In the synthetic rubber sector, the medium - term operating rates of butadiene rubber and styrene - butadiene rubber remain high, and the demand for butadiene maintains a high year - on - year level. In the short term, as butadiene plants undergo maintenance in November, it is expected that the rigid demand for butadiene in synthetic rubber procurement will decrease. In the ABS sector, the inventory pressure is relatively high, and it is expected that the demand for butadiene will only be maintained at a constant level, with limited incremental demand. In the SBS sector, the operating rate has slightly increased, and the rigid demand for butadiene procurement remains unchanged [8]. 3.2.3 Inventory - In the current cycle (from October 30 to November 6, 2025), the total inventory of domestic butadiene samples fluctuated slightly, with a month - on - month decrease of 1.67% from last week. Among them, the inventory of sample enterprises increased by 3.71% month - on - month compared with last week. During the cycle, some plants resumed production, and at the same time, the significant decline in the market led to a slowdown in the trading rhythm, resulting in inventory accumulation for some suppliers. The inventory of sample ports decreased by 6.88% month - on - month compared with last week. Although there were imported vessels arriving at the port during the week, the normal consumption of downstream raw material inventories led to a decrease in the inventory of sample ports. Although the short - term tradable supply is limited, the import volume remains high, and merchants' sentiment remains cautious. Pay attention to future inventory changes [8].

Report Information - Report Name: Synthetic Rubber Weekly Report [1] - Report Date: October 26, 2025 [1] - Analyst: Yang Honghan [1] - Investment Advisory Qualification Number: Z0021541 [1] Report Industry Investment Rating - Not provided in the report Core Viewpoints - The synthetic rubber market is expected to operate within the fundamental valuation range. The fundamentals of butadiene and cis - butadiene rubber face pressure, mainly from high supply, with supply growth exceeding demand growth, increasing inventory pressure in the industry chain. However, the valuation is moderately low, and with many important macro - events, the price is expected to fluctuate. [2][4] - The fundamentals of butadiene are gradually under increasing pressure, with high - supply pressure expected to persist in the medium - term, leading to a weak trend. [5] Summary by Directory This Week's Cis - Butadiene Rubber Viewpoints Supply - This week, the impact of maintenance at Qilu Petrochemical and Yangzi Petrochemical's cis - butadiene rubber plants became apparent, and the load of some private plants decreased slightly. The output of high - cis butadiene rubber was 29,500 tons, a decrease of 500 tons from last week, a 1.84% MoM decline, and the capacity utilization rate was 73.45%, a 1.37 - percentage - point MoM decrease. Next week, Zhejiang Petrochemical is expected to shut down for maintenance, and the specific implementation time of Sichuan Petrochemical is to be determined. There are also maintenance expectations for Zhenhua New Materials, Maoming's cis - butadiene rubber plant, and Zhejiang Transfar's 120,000 - ton/year rare - earth cis - butadiene rubber plant from November to December, so the short - term supply of some spot resources is expected to remain tight. [4] Demand - In terms of rigid demand, the capacity utilization rate of tire sample enterprises increased slightly this week. Snowfall in Heilongjiang and Inner Mongolia was earlier than usual, leading to concentrated demand for winter tires. Semi - steel tire enterprises actively arranged production, driving up the capacity utilization rate. The production of all - steel tire enterprises returned to normal levels this week, also driving up the overall capacity utilization rate. Next week, the capacity utilization rate of sample enterprises is expected to fluctuate slightly. Semi - steel tire enterprises will maintain stable production, and all - steel tire enterprises will keep production stable overall. In terms of substitution demand, the spread between the NR - BR main contracts remains at a high level, so the overall demand for cis - butadiene rubber maintains a high year - on - year growth rate. [4] Inventory - As of October 22, 2025, the domestic inventory of cis - butadiene rubber was 33,200 tons, an increase of 400 tons from the previous period, a 1.25% MoM increase. This week, the spot market was driven by the expectation of a cooling of trade frictions and the strengthening of natural rubber. While the mainstream supply price rebounded, low - price transactions improved. However, due to more maintenance of domestic cis - butadiene rubber plants recently, some sample production enterprises stocked up, resulting in a continuous increase in the inventory level of sample production enterprises and a decrease in the inventory of sample trading enterprises. [4] Valuation - Currently, the static fundamental valuation range of cis - butadiene rubber futures is 10,400 - 11,300 yuan/ton. The dynamic valuation is expected to gradually decline due to the increase in butadiene arrivals. The upper valuation limit of the fundamentals is around 11,200 - 11,300 yuan/ton on the futures market. When the main BR2512 contract has a premium of about 100 yuan/ton over the Shandong market price, there is a risk - free arbitrage opportunity for holding spot and shorting futures, which will increase the pressure on the upper - limit space of the futures market. The lower valuation limit is expected to be supported by butadiene from the cost side, with the theoretical lower - limit valuation range of the futures market at 10,400 - 10,500 yuan/ton. The overall static valuation of cis - butadiene rubber is currently moderately low. [4] Strategy - Unilateral: Implement a range strategy based on the static fundamental valuation. The upper pressure is at 11,200 - 11,300 yuan/ton (mainly following the trend of cis - butadiene rubber spot), and the lower support is at 10,400 - 10,500 yuan/ton (the cost of cis - butadiene rubber anchored by butadiene). - Cross - variety: The spread between NR - BR is at a high valuation, but due to insufficient driving forces, it is expected to fluctuate. [4] This Week's Butadiene Viewpoints Supply - This week (October 17 - 23, 2025), the estimated weekly output of Chinese butadiene industry sample enterprises was 101,900 tons, a decrease of 300 tons from the previous period, a 0.25% MoM decrease. Next week, the estimated weekly output of Chinese butadiene sample enterprises is about 106,000 tons, an increase from this week. Although Sichuan Petrochemical plans to shut down for maintenance on the 25th, the output of enterprises in the Northeast and Shandong will gradually return to normal, increasing the overall output. [5] Demand - In the synthetic rubber sector, the operating rates of cis - butadiene rubber and styrene - butadiene rubber remain high, maintaining a high year - on - year demand for butadiene. With the resumption of cis - butadiene rubber plants, the rigid demand for butadiene in synthetic rubber is expected to increase. In the ABS sector, due to high inventory pressure, the demand for butadiene is expected to remain constant with limited incremental demand. In the SBS sector, the operating rate increased slightly, maintaining rigid demand for butadiene with little change. [5] Inventory - This week (October 16 - 22, 2025), the total inventory of domestic butadiene samples decreased, a 9.29% MoM decrease. Among them, the inventory of sample enterprises increased slightly by 1.83% MoM. There were plant changes during the period, and some downstream plants in East China shut down for maintenance, causing slight fluctuations in butadiene inventory. The inventory at sample ports decreased significantly by 20.13% MoM. The arrival of ships was limited this week, and the tradable volume was low, resulting in a phased reduction in inventory. However, merchants expect sufficient imports in October, so inventory changes need to be closely monitored. [5] Viewpoint - In the short - term, both supply and demand are increasing, and the inventory is neutral, so butadiene is expected to fluctuate. In the medium - term, the supply pressure of butadiene remains the main contradiction, and the fundamentals are still under significant pressure, leading to a weak trend. [5] Butadiene Fundamentals - Butadiene is currently in the supply - demand pricing stage, with a low correlation with the raw material end. [8] - To support the expansion of downstream industries such as ABS, SBS, styrene - butadiene, and cis - butadiene, butadiene production capacity has been continuously expanding, with the expansion speed and amplitude slightly faster than those of downstream industries at certain stages. [10] - The operating rate, production capacity changes, and import - export volume of butadiene are presented through historical data charts and tables, showing the development trend of the butadiene market. [14][16] Synthetic Rubber Fundamentals Cis - Butadiene Rubber Supply - Output: The weekly output of high - cis butadiene rubber in China is presented through historical data charts, reflecting the output changes in recent years. [40] - Cost and Profit: The daily theoretical production cost, profit, and gross profit margin of cis - butadiene rubber in China are presented through historical data charts, showing the cost - profit situation. [42][43][44] - Import and Export: The monthly import and export volumes of cis - butadiene rubber are presented through historical data charts, reflecting the import - export trends. [45][46] - Inventory: The weekly enterprise inventory, futures inventory, and trader inventory of cis - butadiene rubber are presented through historical data charts, showing the inventory situation. [49][50][51] Cis - Butadiene Rubber Demand - Tire: The inventory and operating rates of all - steel and semi - steel tires in Shandong Province are presented through historical data charts, reflecting the demand for cis - butadiene rubber in the tire industry. [53][54]

Report Overview - Report Title: Synthetic Rubber Weekly Report - Report Date: October 19, 2025 - Report Author: Yang Honghan - Report Institution: Guotai Junan Futures Research Institute 1. Report Industry Investment Rating No relevant content provided. 2. Report Core Views - **Synthetic Rubber**: Short - term shock operation. The fundamentals of butadiene and cis - butadiene rubber are under pressure, with supply growth outpacing demand growth. However, the valuation is neutral to low, and with many important macro - events, prices are expected to fluctuate [2][4][5]. - **Butadiene**: In the short - term, supply and demand both increase, inventory is neutral, and it will operate in a shock pattern. In the medium - to - long - term, supply pressure is the main contradiction, and the fundamentals are still under significant pressure, expected to be in a weak pattern [7]. 3. Summary by Directory 3.1 Synthetic Rubber Views Supply - This week, some cis - butadiene rubber plants restarted, while others stopped for maintenance. The production of high - cis butadiene rubber was 30,000 tons, a 0.18% increase from last week, and the capacity utilization rate was 74.82%, up 0.13 percentage points. In the next period, there are no new plant restarts or shutdowns, but centralized maintenance will increase significantly at the end of October [4]. Demand - **Rigid Demand**: The capacity utilization rate of tire sample enterprises is expected to fluctuate slightly. Some enterprises are still flexibly controlling production to manage inventory. - **Substitute Demand**: The NR - BR main contract spread remains high, so the overall demand for butadiene rubber maintains a high year - on - year growth rate. Inventory - As of October 15, 2025, the inventory of domestic cis - butadiene rubber sample enterprises was 32,800 tons, a 1.42% increase from the previous period. After the holiday, raw material and synthetic rubber prices declined, and sample trade enterprise inventories decreased [4]. Valuation - The static valuation range of cis - butadiene rubber futures is 10,400 - 11,300 yuan/ton, and the dynamic valuation is expected to gradually decline. The upper valuation limit of the market is 11,200 - 11,300 yuan/ton, and the lower theoretical valuation limit is 10,400 - 10,500 yuan/ton [4]. Strategy - **Single - side**: Implement range strategies based on the fundamental static valuation. The upper pressure is 11,200 - 11,300 yuan/ton, and the lower support is 10,400 - 10,500 yuan/ton. - **Cross - variety**: When the NR - BR spread is at a high valuation, short the spread when it is high [5]. 3.2 Butadiene Views Supply - This week, domestic butadiene production decreased to 102,200 tons, a 2.39% decline, and the capacity utilization rate was 65.79%, down 1.58%. Next week, the sample enterprise production is expected to be about 103,800 tons, a slight increase [7]. Demand - **Synthetic Rubber**: The operating rates of cis - butadiene rubber and styrene - butadiene rubber remain high, and the demand for butadiene maintains a high year - on - year level. - **ABS**: Inventory pressure is high, and the demand for butadiene is expected to remain constant with limited incremental demand. - **SBS**: The operating rate has slightly increased, and the demand for butadiene remains at a rigid level [9]. Inventory - In the period from October 9 - 15, 2025, the total inventory of domestic butadiene samples increased slightly, with a 3.49% increase from last week. The enterprise inventory decreased by 3.23%, and the port inventory increased by 10.99% [9]. View - In the short - term, supply and demand both increase, inventory is neutral, and it will operate in a shock pattern. In the medium - to - long - term, supply pressure is the main contradiction, and the fundamentals are still under significant pressure, expected to be in a weak pattern [7]. 3.3 Industry Capacity and Production Butadiene Capacity - To match the expansion of downstream industries, butadiene capacity has been continuously expanding, with the speed and amplitude slightly faster than that of downstream industries at certain stages. In 2024, the new capacity was 380,000 tons, and in 2025, it is expected to be 860,000 tons [14][16]. Downstream Product Capacity - **Cis - Butadiene Rubber**: Many enterprises have new or expanded production capacity, such as Zhejiang Petrochemical, Zhejiang Transfar Group, etc. - **Styrene - Butadiene Rubber**: Some enterprises in different regions have planned new production capacity in 2026, such as Guangxi Petrochemical and Yanshan Petrochemical [23][24]. - **ABS and SBS**: There has been significant capacity expansion in recent years. In 2024, the ABS capacity increased by 2.06 million tons, and in 2025, it is expected to increase by 1.5 million tons. For SBS, the capacity increased by 160,000 tons in 2024 and is expected to increase by 250,000 tons in 2025 [35].

Report Overview - The report is a weekly report on synthetic rubber and butadiene by Guotai Junan Futures, dated October 12, 2025 [1] 1. Investment Rating - No investment rating is provided in the report 2. Core Views - Synthetic rubber is expected to operate weakly in the short - term due to the resonance of fundamentals and macro - sentiment. The supply growth rate of butadiene and synthetic rubber is higher than the demand growth rate, and the inventory pressure is increasing. The escalation of Sino - US trade conflicts may also lead to weak expectations for the cost and demand of synthetic rubber [3][4][5] 3. Summary by Section 3.1 Synthetic Rubber 3.1.1 Supply - In October 2025, the estimated output of Chinese cis - butadiene rubber is about 131,300 tons, a slight increase of 900 tons compared to September. Five sets of devices are planned to be overhauled in the next month, with an annual processing capacity of 420,000 tons/year [5] - Some enterprises have normal operation, while others are under maintenance or restarting. For example, Qilu Petrochemical is under parking maintenance, and Shandong Weite is restarting [45] 3.1.2 Demand - In terms of rigid demand, the overall order performance of tire enterprises in October weakened month - on - month. Affected by EU anti - dumping and continuous rainfall, the demand is weak. Some enterprises had 5 - 8 days of maintenance during the "Double Festival", and the inventory reduction of finished products was slow [5] - In terms of substitution demand, the price difference between NR - BR main contracts is maintained at 1,000 - 1,200 yuan/ton, and the substitution demand remains high [5] 3.1.3 Inventory - As of September 24, 2025, the inventory of domestic cis - butadiene rubber sample enterprises was 32,300 tons, a decrease of 1,400 tons compared to the previous period, a month - on - month decrease of 4.21% [5] 3.1.4 Valuation - The static valuation range of cis - butadiene rubber futures fundamentals is 10,500 - 11,300 yuan/ton, and the dynamic valuation range is expected to gradually decline [5] 3.1.5 Strategy - Unilateral: Short at high positions according to the static valuation range of fundamentals. The upper pressure is 11,200 - 11,300 yuan/ton, and the lower support is 10,500 - 10,600 yuan/ton [5] - Cross - variety: The price difference between nr - br fluctuates in the short - term [5] 3.2 Butadiene 3.2.1 Supply - From October 3 - 9, 2025, the estimated weekly output of Chinese butadiene industry sample enterprises was 104,700 tons, an increase of 1,100 tons compared to the previous period, a month - on - month increase of 1.08% [6] - Butadiene production capacity is in a state of continuous expansion, and the expansion speed and amplitude are slightly faster than those of downstream industries [11] 3.2.2 Demand - The operating rates of cis - butadiene rubber and styrene - butadiene rubber remain high, and the demand for butadiene remains at a high level year - on - year. ABS has large inventory pressure, and the demand for butadiene is expected to remain constant. The operating rate of SBS has increased slightly, and the demand for butadiene remains stable [6] 3.2.3 Inventory - From September 18 - 24, 2025, the total inventory of domestic butadiene sample enterprises increased, with a month - on - month increase of 6.72%. The enterprise inventory decreased by 3.44%, and the port inventory increased by 20.13% [6] 3.2.4 Outlook - In the short - term, supply and demand both increase, and the inventory is neutral, so butadiene will fluctuate. In the medium - term, the supply pressure is the main contradiction, and the fundamentals are still weak [6]

1. Report Industry Investment Rating No relevant content provided. 2. Core Viewpoints of the Report - The synthetic rubber market is expected to operate weakly in the short term. The butadiene market will experience short - term fluctuations and is likely to enter a weak pattern in the medium to long term due to supply pressure [2][4][5]. - For cis - butadiene rubber, the short - term trend is oscillatory and under pressure, with a neutral downward drive. However, from a valuation perspective, the decline rate is expected to slow down. The market presents a pattern of both increasing supply and demand, but the supply growth rate is higher than the demand growth rate, leading to increased inventory pressure [4]. 3. Summary Based on Relevant Catalogs 3.1 Butadiene Fundamental Analysis 3.1.1 Supply - In the current cycle (20250919 - 0925), the estimated weekly output of Chinese butadiene industry sample enterprises was 103,000 tons, a week - on - week increase of 2,100 tons or 2.03%. Next week, the estimated weekly output of Chinese butadiene sample enterprises will be around 105,900 tons, continuing to increase [5]. - To support the expansion of downstream industries such as ABS, SBS, styrene - butadiene, and cis - butadiene, butadiene production capacity is continuously expanding, with the expansion speed and amplitude slightly faster than that of downstream industries at certain stages [10]. 3.1.2 Demand - In the synthetic rubber sector, the operating rates of cis - butadiene rubber and styrene - butadiene rubber remain high, maintaining a year - on - year high demand for butadiene. With the resumption of cis - butadiene rubber plants, the rigid demand for butadiene from synthetic rubber is expected to increase [5]. - In the ABS sector, due to high inventory pressure, the demand for butadiene is expected to remain constant with limited incremental demand. In the SBS sector, the operating rate has slightly increased, and the demand for butadiene remains at a rigid level with little change [5]. 3.1.3 Inventory - In the current cycle (20250918 - 0924), the total inventory of domestic butadiene samples has rebounded, with a week - on - week increase of 6.72%. Among them, the inventory of sample enterprises decreased by 3.44% week - on - week, while the inventory of sample ports increased significantly by 20.13% week - on - week. As of September 24, the latest inventory at East China ports was about 27,750 tons, an increase of 4,650 tons from the previous cycle [5]. 3.2 Synthetic Rubber Fundamental Analysis 3.2.1 Cis - Butadiene Rubber Supply - In the current cycle, the production of high - cis butadiene rubber was 26,700 tons, a decrease of 1,300 tons or 4.75% from the previous week. The capacity utilization rate was 66.41%, a decrease of 3.31 percentage points from the previous week. It is expected that the cis - butadiene rubber plants of Haopu New Materials and Taixiang Yubu will resume operation in the next cycle [4]. - The theoretical static valuation range of cis - butadiene rubber futures is 10,900 - 11,800 yuan/ton, and the dynamic valuation range is expected to gradually decline due to the increase in butadiene arrivals [4]. 3.2.2 Cis - Butadiene Rubber Demand - In terms of rigid demand, it is expected that the capacity utilization rate of tire sample enterprises will significantly decline in the next cycle. During the "National Day" holiday, some enterprises plan to take a 5 - 8 - day holiday starting from September 30 or October 1, which will have a significant impact on the capacity utilization rate of sample enterprises next week [4]. - In terms of substitution demand, the price difference between the NR - BR main contracts currently remains in the range of 800 - 1,000 yuan/ton, and the substitution demand remains high. Therefore, the overall demand for cis - butadiene rubber maintains a year - on - year high growth rate [4]. 3.2.3 Cis - Butadiene Rubber Inventory - As of September 24, 2025, the inventory of domestic cis - butadiene rubber sample enterprises was 32,300 tons, a decrease of 1,400 tons or 4.21% from the previous cycle. The inventory of sample production enterprises slightly increased, while the inventory of sample trading enterprises decreased [4].

Report Summary 1. Report Industry Investment Rating No investment rating information is provided in the report. 2. Core Viewpoints - The fundamentals and macro - sentiment of synthetic rubber are in intensified contradiction, and it will operate in a volatile manner. The supply pressure of butadiene is the main contradiction in the medium - to - long term, and its fundamentals are still under significant pressure [2][4][6]. - For synthetic rubber, the supply growth rate is higher than the demand growth rate under the pattern of both supply and demand increase, and the inventory pressure of butadiene rubber has increased. However, due to the expected preventive interest rate cut by the Fed and the "anti - involution" policy, the market has certain support, and the price will fluctuate within the fundamental valuation range [4][5]. 3. Summary by Directory 3.1 Synthetic Rubber Weekly Viewpoint - **Supply**: Shandong Weite, Taixiang Yubu, and Haopu New Materials' butadiene rubber plants stopped for maintenance this week. The output of high - cis butadiene rubber was 29,500 tons, a week - on - week decrease of 3.52%, and the capacity utilization rate was 73.48%, a week - on - week decrease of 2.68 percentage points. As of September 10, 2025, the inventory of domestic butadiene rubber sample enterprises increased by 8.15% week - on - week [4]. - **Demand**: The capacity utilization rate of sample tire production enterprises increased significantly this week and is expected to remain stable next week. The substitution demand remains high, and the overall demand for butadiene rubber maintains a high year - on - year growth rate [4][5]. - **Strategy**: For unilateral trading, short at high levels within the fundamental static valuation range without chasing short positions, and also refer to macro - sentiment. The upper pressure is 12,000 - 12,100 yuan/ton, and the lower support is 11,000 - 11,100 yuan/ton. For cross - variety trading, the nr - br spread will fluctuate in the short term [4][5]. 3.2 This Week's Butadiene Viewpoint - **Supply**: In the current cycle (20250905 - 0911), the estimated weekly output of Chinese butadiene industry sample enterprises was 103,300 tons, a week - on - week decrease of 0.18%. Next week, it is expected to be about 102,500 tons, still showing a downward trend [6]. - **Demand**: The operating rates of butadiene rubber and styrene - butadiene rubber remain high, and the demand for butadiene maintains a high year - on - year level. The demand from ABS is expected to remain constant, and the demand from SBS remains stable [8]. - **Inventory**: The total inventory of domestic butadiene samples decreased slightly this week, with the sample enterprise inventory down 0.81% week - on - week and the sample port inventory down 17.29% week - on - week. However, there are still expectations of ship arrivals, so inventory changes need to be closely monitored [8]. 3.3 Butadiene Fundamentals - **Capacity**: Butadiene is in a state of continuous expansion to match the expansion of downstream industries, and the expansion speed and amplitude are slightly faster than those of downstream industries at certain stages [13]. - **Supply - side - Operating Rate**: The operating rate of butadiene has fluctuated, and many plants have experienced maintenance or shutdowns [17][18]. - **Net Imports**: The net imports of butadiene have shown certain fluctuations, and the import profit is also affected by market prices [20]. - **Demand - side - Capacity and Operation of Downstream Products**: The capacities of downstream products such as butadiene rubber, styrene - butadiene rubber, ABS, and SBS are expanding, and their operating rates and production plans vary [22][23][29][33]. 3.4 Synthetic Rubber Fundamentals - **Supply of Butadiene Rubber**: The output of butadiene rubber has fluctuated, and many plants have normal operations, maintenance plans, or shutdowns. The cost, profit, and inventory of butadiene rubber have also shown corresponding changes [43][44][45]. - **Demand of Butadiene Rubber - Tire**: The inventory and operating rates of domestic tires (including all - steel tires and semi - steel tires) in Shandong Province have shown certain trends, and the demand for butadiene rubber from the tire industry is affected by these factors [57][58].

Report Summary 1. Investment Rating The report does not provide an investment rating for the industry. 2. Core View - The synthetic rubber is approaching the upper limit of fundamental valuation, and the upside space is narrowing [2][4]. - The port tightness pattern of butadiene has been alleviated, and it is expected to pull back in the short - term and enter a weak pattern in the medium - to - long term. 3. Summary by Directory 3.1 This Week's Synthetic Rubber View - **Strategy**: For single - side trading, the upper pressure of synthetic rubber is 11,900 - 12,000 yuan/ton, and the lower support is 11,200 - 11,300 yuan/ton. The nr - br spread fluctuates in the short - term [5]. - **Inventory**: This week, the output and capacity utilization rate of high - cis butadiene rubber continued to decline. The output was 27,300 tons, a week - on - week decrease of 5.93%. The capacity utilization rate was 68.17%, a week - on - week decrease of 4.29 percentage points. It is expected to increase in the next cycle. The overall demand of butadiene rubber maintains a high year - on - year growth rate. As of August 13, 2025, the inventory of Chinese high - cis butadiene rubber sample enterprises was 30,400 tons, a week - on - week decrease of 3.18% [6]. - **Valuation**: The static fundamental valuation range of butadiene rubber futures is 11,200 - 12,000 yuan/ton, and the dynamic valuation is expected to decline slightly. The upper valuation limit is 11,900 - 12,000 yuan/ton, and the lower theoretical valuation bottom range is 11,200 yuan/ton [6]. 3.2 This Week's Butadiene View - **Supply**: The domestic butadiene supply increased. This period's output was 105,300 tons, a 2.73% increase from the previous period. The capacity utilization rate was 69.69%, a 0.07% decrease from the previous period [7]. - **Demand**: Synthetic rubber has a high demand for butadiene, and the demand for ABS is constant with limited increments. The demand for SBS maintains rigid procurement with little change [9]. - **Inventory**: The total inventory of domestic butadiene samples increased by 11.70% week - on - week. The sample enterprise inventory decreased by 0.46% week - on - week, and the sample port inventory increased by 38.78% week - on - week. As of August 13, the latest inventory in East China ports was about 20,400 tons, an increase of 5,700 tons from the previous period [9]. 3.3 Butadiene Fundamentals - **Capacity**: Butadiene is in a state of continuous expansion, and the expansion speed and amplitude are slightly faster than that of downstream industries. In 2024, the new capacity was 380,000 tons, and in 2025, it is expected to be 860,000 tons [14][16]. - **Supply - side -开工率**: The butadiene weekly operating rate shows fluctuations, and many enterprises have experienced shutdowns and restarts [18][19]. - **Demand - side**: The production capacity of downstream industries such as butadiene - based cis - and styrene - butadiene rubber, ABS, and SBS is expanding [22][31]. - **Inventory - side**: The butadiene weekly enterprise inventory, port inventory, and total inventory show different trends over time [34][35][36]. 3.4 Synthetic Rubber Fundamentals - **Supply - side**: The production of high - cis butadiene rubber shows fluctuations. Many enterprises' devices are in different operating states, including normal operation, shutdown for maintenance, and restart [40][41]. - **Cost and profit**: The daily theoretical production cost, profit, and gross profit margin of butadiene rubber show different trends over time [43][44][45]. - **Import and export**: The monthly import and export volume of butadiene rubber shows fluctuations [46][47]. - **Inventory**: The weekly enterprise inventory, futures inventory, and trader inventory of butadiene rubber show different trends over time [51][52][53]. - **Demand - side**: The demand for butadiene rubber from the tire industry shows different trends in inventory and operating rate [55][56].