国泰君安期货能源化工：合成橡胶周度报告-20250727

1. Report Industry Investment Rating There is no information provided regarding the report industry investment rating in the given content. 2. Report's Core View - The short - term outlook for synthetic rubber is a high - level pullback, while the medium - term trend is expected to be in a volatile pattern. For butadiene, the short - term price is expected to correct, and in the long - term, it will re - enter a weak pattern after the macro sentiment eases [2][4][5]. 3. Summary According to Relevant Catalogs 3.1 This Week's Synthetic Rubber View Supply - The production capacity of previously restarted high - cis butadiene rubber plants was released, and the load of an individual plant in North China increased. The output of high - cis butadiene rubber this week was 27,200 tons, a week - on - week increase of 5.15%, and the capacity utilization rate was 67.63%, a week - on - week increase of 3.31 percentage points. Yanshan Petrochemical's butadiene rubber plant has produced high - grade products after restarting. It is expected that the production of domestic butadiene rubber will continue to increase next week [4]. Demand - In terms of rigid demand, the capacity utilization rate of tire sample enterprises is expected to decline in the next cycle. At the end of the month, the overall shipment of enterprises was lower than expected, the finished product inventory increased slightly, and some enterprises have short - term maintenance plans from late July to early August, which will drag down the overall capacity utilization rate. In terms of substitution demand, the price difference between NR - BR main contracts remains in the range of 800 - 900 yuan/ton, and the substitution demand remains high. Therefore, the overall demand side of butadiene rubber maintains a high year - on - year growth rate [4]. Inventory - As of July 23, 2025 (Week 30), the inventory of high - cis butadiene rubber sample enterprises in China was 32,300 tons, a slight increase from the previous period, with a week - on - week increase of 0.22%. Due to the influence of macro news and rising raw material costs, the spot and futures markets were expected to be strong, the supply price increased significantly, and some arbitrageurs actively tried to buy, resulting in a slight decrease in the inventory of sample producers and an increase in the inventory of sample traders [4]. View - In the short term, the futures price of butadiene rubber is expected to pull back from a high level and enter a volatile pattern in the medium term. On Friday night, with a large number of speculative funds leaving the market, the commodity index fell from a high level, and synthetic rubber followed suit. In addition, with the strengthening of the basis, the liquidity of spot and futures sources in the spot market is expected to be released, bringing supply - side selling pressure to the spot market. In the medium term, butadiene rubber is expected to fluctuate mainly due to three reasons: the anti - involution policy is still in progress, which supports the overall valuation of commodities; the overall rubber sector is supported by fluctuations, and the raw material prices in Thailand have stabilized; the fundamentals of the synthetic rubber industry chain have improved marginally, with the inventory of synthetic rubber sample enterprises decreasing slightly for three consecutive weeks, and the tight supply of port goods due to the low arrival volume of butadiene in July [4]. Valuation - The static valuation range of butadiene rubber futures fundamentals is 11,500 - 12,400 yuan/ton, and the dynamic valuation is expected to be stable. The upper limit of the fundamental valuation is 12,400 - 12,500 yuan/ton. When the main BR2509 contract has a premium of about 100 yuan/ton over the market price in Shandong (the monthly holding cost is about 90 yuan/ton), there is a risk - free arbitrage opportunity, which will increase the pressure on the upper space of the futures market. The theoretical lower limit of the valuation is 11,500 yuan/ton, as butadiene is expected to support the butadiene rubber price from the cost side [4]. Strategy - For single - side trading, it is relatively strong, with the upper pressure at 12,400 - 12,500 yuan/ton and the lower support at 11,400 - 11,500 yuan/ton. There is no strategy for inter - delivery spread trading, and the NR - BR price difference will enter a volatile range in the short term [4]. 3.2 This Week's Butadiene View Supply - Some plants restarted operation this week, increasing the domestic butadiene supply. The output this period was 103,400 tons, a 2.99% increase from the previous period, and the capacity utilization rate was 70.00%, a 2.04% increase from the previous period. The increase in output was mainly due to the restart of Shenghong Petrochemical's plant [5]. Demand - In the synthetic rubber sector, the operating rates of butadiene rubber and styrene - butadiene rubber remained high, maintaining a high year - on - year demand for butadiene. With the resumption of butadiene rubber plants, the rigid demand for butadiene in synthetic rubber is expected to increase. For ABS, due to high inventory pressure, the demand for butadiene is expected to remain constant with no significant increase. For SBS, the operating rate increased slightly, and the demand for butadiene remained at a rigid level with limited price changes [5]. Inventory - From July 17 - 23, 2025, the total inventory of domestic butadiene samples continued to decline, with a week - on - week decrease of 8.68%. The inventory of sample enterprises decreased slightly by 1.07% week - on - week, and the overall inventory fluctuation was limited. The inventory of sample ports decreased by 21.50% week - on - week, reaching a record low for the year due to reasons such as weather - related delays in some ship arrivals and limited imports in July, resulting in tight tradable volumes in the main port storage areas [5]. View - In the short term, as commodities correct and trading volume weakens, the spot price of butadiene is expected to decline. However, the decline is expected to be limited as the arrival volume of butadiene in July is expected to be low, and port prices may remain resilient. In the long term, the supply pressure of butadiene is the main contradiction, and the fundamentals are still under pressure. It is expected to re - enter a weak pattern after the macro sentiment eases [5]. 3.3 Butadiene Fundamentals Capacity - To support the expansion of downstream industries such as ABS, SBS, styrene - butadiene, and butadiene rubber, butadiene production capacity has been continuously expanding, with the speed and amplitude of expansion being slightly faster than that of downstream industries at certain stages [10]. Supply - side (Capacity and Maintenance) - Many plants have new production capacity coming on - stream from 2024 to 2025, with a total of 380,000 tons in 2024 and 860,000 tons in 2025. There have also been multiple plant maintenance events, affecting production capacity utilization [10][12][15]. Demand - side - The production capacity of downstream butadiene rubber and styrene - butadiene rubber has been expanding, and new plants have been put into operation. The production capacity of ABS and SBS has also increased, with significant capacity increments in 2024 and 2025 [17][26]. Inventory - side - The weekly enterprise inventory, port inventory, and total inventory of butadiene have shown different trends over time, with the current port inventory at a low level due to factors such as limited imports and weather - related delays [29][30][31]. 3.4 Synthetic Rubber Fundamentals (Butadiene Rubber) Supply - The production and operating rates of butadiene rubber have changed. Some plants have restarted, and some have planned maintenance. The production cost, profit, and import - export volume of butadiene rubber also have corresponding trends [36][37][41]. Demand - The demand for butadiene rubber is mainly related to the tire industry. The inventory and operating rates of full - steel and semi - steel tires in Shandong Province have shown different trends over time, which will affect the demand for butadiene rubber [51][52].