化工日报：天然橡胶社会库存环比继续下降-20250904

1. Report Industry Investment Rating - The investment ratings for RU and NR are neutral, and the rating for BR is also neutral [8] 2. Core Viewpoints of the Report - The cost - end support for natural rubber may continue, with domestic Qingdao port and social inventories showing a slight downward trend. Attention should be paid to the raw material procurement willingness of factories during the upcoming downstream traditional peak season [8] - For cis - butadiene rubber, the supply - demand situation may improve slightly, and the inventory is expected to remain stable. The cost - end support for cis - butadiene rubber still exists [8] 3. Summary by Relevant Catalogs Market News and Data - Futures: On the previous trading day's close, the RU main contract was at 15,885 yuan/ton (+15 yuan/ton), the NR main contract was at 12,715 yuan/ton (+5 yuan/ton), and the BR main contract was at 11,885 yuan/ton (+65 yuan/ton) [1] - Spot: The price of Yunnan - produced whole latex in the Shanghai market was 15,000 yuan/ton (+0 yuan/ton), the price of Thai mixed rubber in Qingdao Free Trade Zone was 14,900 yuan/ton (+20 yuan/ton), etc. [1] Market Information - Global natural rubber: In July 2025, global natural rubber production was expected to slightly decrease by 0.1% to 1.328 million tons, and consumption was expected to drop by 4.1% to 1.246 million tons. In the first 7 months, cumulative production was expected to increase by 0.1% to 7.477 million tons, and cumulative consumption was expected to decrease by 0.6% to 8.888 million tons [2] - China's heavy - truck market: In August 2025, the sales volume was about 84,000 units, a month - on - month decrease of 1% and a year - on - year increase of about 35%. From January to August, the cumulative sales volume was about 708,000 units, a year - on - year increase of about 13% [2] - Thailand's natural rubber exports: In the first 7 months of 2025, Thailand's natural rubber exports (excluding compound rubber) totaled 1.586 million tons, a year - on - year decrease of 5%. Exports to China totaled 622,000 tons, a year - on - year increase of 7% [2] - China's natural rubber imports: In July 2025, the import volume was 474,800 tons, a month - on - month increase of 2.47% and a year - on - year decrease of 1.91%. From January to July, the cumulative import volume was 3.6005 million tons, a cumulative year - on - year increase of 21.82% [3] - Cote d'Ivoire's rubber exports: In the first 7 months of 2025, the export volume was 908,487 tons, a 14.3% increase compared to the same period in 2024 [3] - China's rubber tire exports: In the first 7 months of 2025, the export volume was 5.63 million tons, a year - on - year increase of 5.4%, and the export value was 99.2 billion yuan, a year - on - year increase of 5.4% [3] Market Analysis Natural Rubber - Spot and spreads: On September 3, 2025, the RU basis was - 885 yuan/ton (-15), the spread between the RU main contract and mixed rubber was 985 yuan/ton (-5), etc. [4] - Raw materials: The price of Thai smoked sheets was 61.29 baht/kg (+0.31), the price of Thai glue was 55.60 baht/kg (+0), and the price of Thai cup lump was 51.30 baht/kg (+0.10) [5] -开工率：The full - steel tire operating rate was 64.89% (-0.08%), and the semi - steel tire operating rate was 70.97% (-0.90%) [7] - Inventory: The social inventory of natural rubber was 1,264,898 tons (-5,911 tons), the inventory at Qingdao Port was 602,295 tons (-3,908 tons), etc. [7] Cis - Butadiene Rubber - Spot and spreads: On September 3, 2025, the BR basis was - 135 yuan/ton (-65), the ex - factory price of butadiene from Sinopec was 9,500 yuan/ton (+0), etc. [7] - Operating rate: The operating rate of high - cis cis - butadiene rubber was 75.85% (+6.70%) [7] - Inventory: The inventory of cis - butadiene rubber traders was 7,260 tons (+640 tons), and the inventory of cis - butadiene rubber enterprises was 24,650 tons (-450 tons) [7] Strategy - For RU and NR, maintain a neutral stance. The cost - end support for natural rubber may continue, and attention should be paid to the raw material procurement willingness of factories during the downstream traditional peak season [8] - For BR, maintain a neutral stance. The supply - demand situation may slightly improve, and the inventory is expected to remain stable. The cost - end support for cis - butadiene rubber still exists [8]