2025年橡胶11月策略报告：动态介入天然胶与合成胶的结构性套利机会-20251030

1. Report Industry Investment Rating No relevant content provided. 2. Core Viewpoints of the Report - The new supply of natural rubber is expected to increase, but weather factors may affect the tapping progress. The demand side does not seem to be the focus of trading. Currently, the rubber price has returned to a relatively reasonable level, and considering the expected inventory accumulation in the later period, the overall upward driving force is weak [3][63]. - The cost - side supply of synthetic rubber is abundant, and the supply - demand gap of butadiene is expected to gradually widen from October to November. The profit of butadiene rubber is in a loss state, with high - level production and inventory. The annual capacity growth rate of butadiene rubber is 9%, and the inventory remains high [4][65][66]. - The strategy is to dynamically intervene in buying natural rubber and selling synthetic rubber, while paying attention to risk points such as tariff policies, device commissioning and maintenance changes, extreme weather in major producing areas, oil price fluctuations, and the macro - economy [5][67]. 3. Summary According to the Directory 3.1 Rubber Market Review in October 2025 - Natural rubber: The rubber market showed a "V" - shaped trend in October. It continued to decline in the first and middle of the month, possibly due to the slightly unexpected rubber reserve release at the end of September and the expected increase in supply in October. The market rose in the later period due to the warming of macro - sentiment. As of October 29, the closing price of the RU main contract was 15,625 yuan/ton, up 250 yuan/ton (+1.6%) for the month, and the closing price of the NR main contract was 12,720 yuan/ton, up 290 yuan/ton (+2.3%) for the month [10]. - Synthetic rubber: It fluctuated following natural rubber but was weaker than natural rubber. As of October 29, the closing price of the BR main contract was 10,795 yuan/ton, down 545 yuan/ton (-4.8%) for the month [10]. 3.2 Supply Side 3.2.1 Natural Rubber: Southeast Asian New Rubber Supply May Fall Short of Expectations - Thailand: It may have entered a stable production - decline cycle. Although there is an expectation of increased production in the fourth - quarter peak season, the current new rubber supply is affected by rainy weather. The rainfall in the northeastern part of Thailand is expected to decrease seasonally, but the production there may not increase significantly. The southern part is approaching the rainfall peak, which may still affect tapping. In August 2025, Thailand's rubber production was 458,800 tons, a month - on - month decrease of 2,000 tons (-0.4%). From May to August, the production was 1.585 million tons, a year - on - year decrease of 24,600 tons (-1.5%) [13][14]. - Other major ANRPC members: Indonesia's production has increased this year, with 189,000 tons in August 2025, a month - on - month decrease of 8,500 tons (-4.3%), and a cumulative export of 1.141 million tons of natural rubber as of August 2025, a year - on - year increase of 86,300 tons (+8%). Vietnam is expected to have a slight production decrease, with 140,500 tons in August 2025, the same as the previous month, and a production of 455,500 tons from May to August, a year - on - year decrease of 50,000 tons (-10%) [15]. - China: Affected by Typhoon "Mujigae" in 2024, about 230,000 mu of rubber plantations in Hainan were damaged. In August 2025, China's production was 113,700 tons, a month - on - month increase of 12,000 tons (+12%). The rainfall in Yunnan and Hainan in October was lower than that of the previous year. African rubber is rising, with Cote d'Ivoire's cumulative exports reaching 1.05 million tons as of August 2025, a year - on - year increase of 130,000 tons (+14%) [16]. 3.2.2 Natural Rubber Import: Affected by Overseas Production Increase and EUDR Delay - Import volume is seasonally increasing with the growth of overseas output. Future imports need to pay close attention to industry policies such as EUDR, China - Thailand zero - tariff policy, and zero - tariff policy with 53 African diplomatic countries. The appreciation of the RMB against the Thai baht may put pressure on imports. EUDR implementation has been postponed. In September, 595,900 tons of rubber were imported, a month - on - month increase of 75,000 tons (+14%), higher than the average of the past five years (550,000 tons). From January to September, the cumulative import was 4.7172 million tons, a cumulative year - on - year increase of 19.65% [21][22][24]. 3.2.3 Butadiene Rubber: High Inventory - The supply - demand gap of butadiene is expected to gradually widen from November to December. The supply side includes: a certain repair of naphtha cracking ethylene profit but still in a loss state, with the weekly production rate dropping to a seasonal low due to maintenance from October to November; a 14% expected capacity growth rate of butadiene in 2025, with the production of 200,000 tons from Jilin Petrochemical and 200,000 tons from Yulong Petrochemical put into production in August - September expected to be released, and 180,000 tons from Guangxi Petrochemical planned to be put into production in the fourth quarter; although South Korea has decided to cut 25% of its naphtha cracking capacity, the import volume from South Korea has not significantly decreased, and the import volume from Europe has increased significantly. The demand side focuses on the commissioning progress of SBS and ABS. The inventory of butadiene rubber has been high this year, with Yulong Petrochemical's 150,000 - ton production capacity put into production and gradually ramping up at the beginning of the year, and a 50,000 - ton/year low - cis butadiene rubber production device of a certain petrochemical expected to start trial production in late October [37]. 3.3 Demand Side: Domestic Demand is Good, Export is Acceptable, but Trade Frictions Need Continuous Attention - Overseas demand: From January to August, EU car registrations were 7.169 million, a cumulative year - on - year decrease of 0.2%, and US car sales were 1.91 million, a year - on - year decrease of 5%. - Direct demand: The performance of all - steel tires is good. From January to September, the domestic production of semi - steel tires was 432 million, a year - on - year decrease of 0.96%; the production of all - steel tires was 95.87 million, a year - on - year increase of 0.8%. The start - up rate of semi - steel tire sample enterprises was lower than that of the previous year, and the overall enterprise inventory was high. The weekly start - up rate of all - steel tires was at a medium - to - high level in the past five years, and the inventory was at a seasonal low. - Tire export: In September, the export volume of new pneumatic tires was 760,000 tons, a month - on - month decrease of 80,000 tons. The cumulative export from January to September was 7.02 million tons, a year - on - year increase of 4.8%, with the growth rate remaining the same as the previous month. The export of new pneumatic rubber tires for motor cars was 2.5 million tons, a cumulative year - on - year increase of 1.3%, with the growth rate decreasing by 0.4% compared to the previous month. The export of new pneumatic rubber tires for trucks and buses was 3.63 million tons, a cumulative year - on - year increase of 6.7%, with the growth rate increasing by 0.3% compared to the previous month. Continuous attention should be paid to the impact of trade frictions [43]. - Terminal market: From January to September, passenger car sales were 21.2126 million, a year - on - year increase of 13.6%, with the growth rate remaining the same as the previous month. Commercial vehicle sales were 3.1118 million, a year - on - year increase of 7.6%, with the growth rate increasing by 1.4% compared to the previous month. The sales of new - energy vehicles in China continued to grow, especially the sales of pure - electric heavy - duty trucks increased rapidly. From January to September 2025, the sales of new - energy heavy - duty trucks were 135,300, a year - on - year increase of 179%. From January to September 2025, the cumulative year - on - year growth rate of highway freight turnover was 4.1%, with the growth rate increasing by 0.2% compared to the previous month [44]. 3.4 Inventory: Synthetic Rubber Inventory is High, and Natural Rubber May Have an Inventory Accumulation Expectation - Natural rubber: As of October 26, 2025, China's natural rubber social inventory was 1.039 million tons, a decrease of about 49,000 tons from the end of the previous month. The dark - colored rubber inventory was 639,000 tons, a decrease of about 22,000 tons, and the light - colored rubber inventory was 400,000 tons, a decrease of about 27,000 tons. The 20 - number rubber futures inventory was 43,800 tons, an increase of about 9,000 tons from the end of the previous month. The Shanghai rubber futures inventory was 123,300 tons, a decrease of about 26,000 tons from the end of the previous month, reaching a seasonal low [56]. - Synthetic rubber: The butadiene rubber enterprise inventory increased to 28,600 tons, and the trader inventory decreased to 4,500 tons. The total was still at a relatively high seasonal level. The BR futures inventory was 8,900 tons, a decrease of 300 tons for the month. The total inventory of styrene - butadiene rubber enterprises and traders was about 24,000 tons, at a seasonal medium level [56][57]. 3.5 Market Outlook - Natural rubber: The supply side has an unchanged expectation of increased production, but the tapping progress may be affected by rainy weather in domestic and overseas producing areas. The Southeast Asian producing areas, mainly Thailand, may have a supply increase falling short of expectations. The import is seasonally recovering, but there may be some pressure due to the postponed implementation of EUDR and the appreciation of the RMB against the Thai baht. The demand side shows good domestic demand, with relatively good performance of heavy - duty trucks and all - steel tires, but tire exports face challenges due to continuous international trade frictions. Overall, although there is an expectation of increased new rubber supply, factors such as weather may still affect the supply progress. The demand side does not seem to be the focus of trading. Currently, the rubber price has returned to a relatively reasonable level, and considering the expected inventory accumulation in the later period, the upward driving force is weak [63]. - Synthetic rubber: The cost - side supply of butadiene is abundant, and the supply - demand gap from October to November is expected to gradually widen, which may or may not affect the price of natural rubber. Butadiene rubber has a loss in profit, high - level production, and high inventory, with a 9% annual capacity growth rate and continuously high inventory [4][65][66].