Report Summary 1. Industry Investment Rating No information provided. 2. Core Viewpoints - Some traders placed orders for replenishment, but the lack of actual positive factors hindered sales. Production enterprise inventories decreased slightly, while trading enterprise inventories increased [2]. - The supply of raw material butadiene was relatively sufficient, weakening the cost support for butadiene rubber. Recently, many domestic butadiene rubber producers had maintenance and shutdowns [2]. - In terms of demand, the production schedules of previously overhauled enterprises gradually returned to normal levels. Last week, the capacity utilization rate of domestic tire enterprises increased month - on - month. In the short term, the capacity utilization rate of tire enterprises was expected to fluctuate slightly. The BR2508 contract was expected to fluctuate in the range of 11,400 - 11,900 [2]. 3. Summary by Directory 3.1 Futures Market - The closing price of the main contract for synthetic rubber was 11,740 yuan/ton, with a month - on - month increase of 255 yuan/ton. The position of the main contract was 16,777, with a month - on - month increase of 596 [2]. - The 7 - 8 spread of synthetic rubber was 120 yuan/ton, a month - on - month decrease of 40 yuan/ton. The total number of warehouse receipts for butadiene rubber was 5,170 tons, unchanged from the previous period [2]. - The basis of synthetic rubber was - 205 yuan/ton [2]. 3.2 Spot Market - The mainstream price of BR9000 (Qilu Petrochemical) in Shandong was 11,600 yuan/ton, unchanged from the previous period. The mainstream price of BR9000 (Daqing Petrochemical) in Shandong and Shanghai was also 11,600 yuan/ton, unchanged. The mainstream price of BR9000 (Maoming Petrochemical) in Guangdong was 11,650 yuan/ton, unchanged [2]. 3.3 Upstream Situation - Brent crude oil was at $76.45 per barrel, up $3.22. WTI crude oil was at $74.84 per barrel, up $3.07. Naphtha CFR Japan was at $625.63 per ton, up $1.5. The Northeast Asian ethylene price was $810 per ton, up $10. The CFR China butadiene price was $1,070 per ton, up $20 [2]. - The market price of butadiene in the Shandong market was 9,400 yuan/ton, down 100 yuan/ton. The weekly butadiene production capacity was 147,700 tons, unchanged. The capacity utilization rate of butadiene was 68.98%, up 0.96 percentage points [2]. - The port inventory of butadiene was 21,000 tons, a decrease of 6,000 tons. The operating rate of Shandong refineries' atmospheric and vacuum distillation units was 45.12%, down 1.88 percentage points [2]. 3.4 Downstream Situation - The monthly output of butadiene rubber was 17,900 tons. The weekly capacity utilization rate of butadiene rubber was 65.03%, down 2.22 percentage points. The weekly production profit of butadiene rubber was 306 yuan/ton, and the social inventory of butadiene rubber was 33,900 tons, a decrease of 100 tons [2]. - The manufacturer's inventory of butadiene rubber was 27,650 tons, a decrease of 650 tons. The trader's inventory of butadiene rubber was 6,210 tons, an increase of 530 tons [2]. - The operating rate of domestic semi - steel tires was 77.98%, up 4.12 percentage points. The operating rate of domestic all - steel tires was 61.24%, down 2.23 percentage points [2]. - The monthly output of all - steel tires was 11.82 million, a decrease of 1.26 million. The monthly output of semi - steel tires was 54.15 million, a decrease of 1.24 million [2]. - The inventory days of all - steel tires in Shandong were 41.74 days, a decrease of 0.13 days. The inventory days of semi - steel tires in Shandong were 46.28 days, an increase of 0.44 days [2]. 3.5 Industry News - As of June 11, the inventory of high - cis butadiene rubber sample enterprises in China was 33,900 tons, a month - on - month decrease of 0.35% [2]. - As of June 12, the capacity utilization rate of Chinese semi - steel tire sample enterprises was 69.98%, a month - on - month increase of 5.93 percentage points and a year，on - year decrease of 10 percentage points. The capacity utilization rate of Chinese all - steel tire sample enterprises was 58.70%, a month - on - month increase of 3.05 percentage points and a year - on - year increase of 4.95 percentage points [2]. - In May 2025, the heavy - truck market in China sold about 83,000 vehicles, a 5% decrease from April and a 6% increase from the same period last year. From January to May 2025, the cumulative sales of the heavy - truck market were about 435,500 vehicles, a year - on - year increase of about 1% [2].

Report Industry Investment Rating - Not provided Core Viewpoints - The supply of raw material butadiene is relatively sufficient, weakening the cost support for butadiene rubber production. Recently, many domestic butadiene rubber producers have carried out maintenance and shutdowns. Some traders have placed orders for replenishment, but the lack of actual positive factors has hindered sales. Producer inventories have slightly decreased, while trader inventories have increased. [2] - In terms of demand, the production schedules of previously overhauled enterprises have gradually returned to normal levels. Last week, the capacity utilization rate of domestic tire enterprises increased month - on - month. In the short term, the capacity utilization rate of tire enterprises is expected to fluctuate slightly. The BR2508 contract is expected to fluctuate in the range of 11,000 - 11,600 in the short term. [2] Summary by Relevant Catalogs Futures Market - The closing price of the main contract for synthetic rubber was 11,485 yuan/ton, a decrease of 80 yuan/ton compared to the previous period. The position of the main contract was 16,181 yuan/ton, a decrease of 2,138 yuan/ton. The 7 - 8 spread of synthetic rubber was 160 yuan/ton, an increase of 5 yuan/ton. The total number of warehouse receipts for butadiene rubber in warehouses was 5,170 tons, unchanged from the previous period. [2] Spot Market - The mainstream price of cis - butadiene rubber (BR9000) from different producers in different regions showed various changes, with prices ranging from 11,600 - 11,650 yuan/ton. The basis of synthetic rubber was 215 yuan/ton, a decrease of 20 yuan/ton. [2] - The price of Brent crude oil was 73.23 dollars/barrel, a decrease of 1 dollar/barrel. The price of WTI crude oil was 71.77 dollars/barrel, a decrease of 1.21 dollars/barrel. The price of Northeast Asian ethylene was 800 dollars/ton, an increase of 10 dollars/ton. The price of naphtha (CFR Japan) was 624.13 dollars/ton, an increase of 3.63 dollars/ton. The intermediate price of butadiene (CFR China) was 1,050 dollars/ton, unchanged from the previous period. The mainstream price of butadiene in the Shandong market was 9,500 yuan/ton, an increase of 150 yuan/ton. [2] Upstream Situation - The weekly capacity of butadiene was 14.77 million tons/week, unchanged from the previous period. The capacity utilization rate of butadiene was 68.98%, an increase of 0.96 percentage points. The port inventory of butadiene was 21,000 tons, a decrease of 6,000 tons. The operating rate of Shandong local refineries' atmospheric and vacuum distillation units was 45.12%, a decrease of 1.88 percentage points. [2] - The monthly output of butadiene rubber was 13.94 million tons, an increase of 1.79 million tons. The weekly capacity utilization rate of butadiene rubber was 65.03%, a decrease of 2.22 percentage points. The weekly production profit of butadiene rubber was - 576 yuan/ton, an increase of 306 yuan/ton. The social inventory of butadiene rubber was 3.39 million tons, a decrease of 0.01 million tons. The producer inventory of butadiene rubber decreased by 650 tons, and the trader inventory increased by 530 tons to 6,210 tons. [2] Downstream Situation - The operating rate of domestic semi - steel tires was 77.98%, an increase of 4.12 percentage points, and the operating rate of full - steel tires was 61.24%, a decrease of 2.23 percentage points. The monthly output of full - steel tires was 1,182 thousand pieces, a decrease of 126 thousand pieces, and the monthly output of semi - steel tires was 5,415 thousand pieces, a decrease of 124 thousand pieces. The inventory days of full - steel tires in Shandong were 41.74 days, a decrease of 0.13 days, and the inventory days of semi - steel tires were 46.28 days, an increase of 0.44 days. [2] Industry News - As of June 11, the inventory of high - cis butadiene rubber sample enterprises in China was 3.39 million tons, a month - on - month decrease of 0.01 million tons or 0.35%. [2] - As of June 12, the capacity utilization rate of Chinese semi - steel tire sample enterprises was 69.98%, a month - on - month increase of 5.93 percentage points and a year - on - year decrease of 10.00 percentage points. The capacity utilization rate of full - steel tire sample enterprises was 58.70%, a month - on - month increase of 3.05 percentage points and a year - on - year increase of 4.95 percentage points. [2] - In May 2025, China's heavy - truck market sold about 83,000 vehicles (wholesale basis), a month - on - month decrease of 5% compared to April and a year - on - year increase of about 6%. From January to May 2025, the cumulative sales of China's heavy - truck market were about 435,500 vehicles, a year - on - year increase of about 1%. [2]

Report Overview - Report Title: Synthetic Rubber Industry Daily Report 2025 - 06 - 04 [1] - Researcher: Lin Jingyi [2] - Futures Practitioner Qualification Number: F03139610 [2] - Futures Investment Consulting Practitioner Certificate Number: Z0021558 [2] 1. Report Industry Investment Rating - Not provided in the content 2. Report's Core View - Recently, the sentiment on the raw material side has gradually subsided. The production cost of cis - butadiene rubber has decreased slightly but there are still large losses. The continuous large - scale losses in production may lead some private enterprises to further reduce their production loads. The overall supply is expected to continue to decrease as the full - scale overhaul of Yanshan Petrochemical starts gradually. The prices in the cis - butadiene rubber spot market have continued to decline and it's still difficult to attract trading. Last week, the inventories of cis - butadiene production enterprises and trading enterprises both increased. On the demand side, the capacity utilization rate of domestic tire enterprises decreased last week. Most tire enterprises' equipment ran smoothly, some enterprises had maintenance plans at the end of the month, and a few enterprises reduced production, dragging down the capacity utilization rate. Some enterprises have short - term maintenance plans recently, and the capacity utilization rate of domestic tire enterprises may continue to decline in the short term. The BR2507 contract is expected to fluctuate in the range of 10,750 - 11,500 in the short term [2] 3. Summary by Relevant Catalogs 3.1 Futures Market - The closing price of the main contract of synthetic rubber is not clearly shown in the data table. The position of the 220 main contract of synthetic rubber is 11,095, with a decrease of 3,874. The 6 - 7 spread of synthetic rubber is 35 yuan/ton. The number of warehouse receipts for butadiene rubber in the warehouse is 6,050 tons, with a decrease of 70 tons [2] 3.2 Spot Market - The mainstream price of cis - butadiene rubber (BR9000, Qilu Petrochemical) in Shandong is 11,400 yuan/ton, with a decrease of 200 yuan/ton; the mainstream price of cis - butadiene rubber (BR9000, Daqing Petrochemical) in Shandong is 11,300 yuan/ton, with a decrease of 100 yuan/ton; the mainstream price of cis - butadiene rubber (BR9000, Daqing Petrochemical) in Shanghai is 11,350 yuan/ton, with a decrease of 100 yuan/ton; the mainstream price of cis - butadiene rubber (BR9000, Maoming Petrochemical) in Guangdong is 11,400 yuan/ton, with a decrease of 100 yuan/ton. The basis of synthetic rubber is 305 yuan/ton, with a decrease of 320 yuan/ton [2] 3.3 Upstream Situation - Brent crude oil is 65.63 US dollars/barrel, with no change; WTI crude oil is 63.41 US dollars/barrel. The price of naphtha CFR Japan is 561.63 US dollars/ton, with no change; the price of Northeast Asian ethylene is 1,150 US dollars/ton, with no change; the intermediate price of butadiene CFR China is 780 US dollars/ton, with no change; the market price of butadiene in the Shandong market is 9,350 yuan/ton, with a decrease of 350 yuan/ton. The weekly capacity of butadiene is unchanged, the capacity utilization rate of butadiene is 69.3%, with an increase of 1.57 percentage points. The port inventory of butadiene is 28,500 tons, and the operating rate of Shandong local refineries' atmospheric and vacuum distillation units is 46.09%, with a decrease of 1.19 percentage points [2] 3.4 Production and Inventory of Cis - Butadiene Rubber - The monthly output of cis - butadiene rubber is 12.15 tons, with a decrease of 0.68 tons. The weekly capacity utilization rate of cis - butadiene rubber is 73.54%, with a decrease of 2.03 percentage points. The weekly production profit of cis - butadiene rubber is - 279 yuan/ton, with a decrease of 894 yuan/ton. The weekly social inventory of cis - butadiene rubber is 3.45 tons, with an increase of 0.17 tons. The weekly manufacturer inventory of cis - butadiene rubber is 1,100 tons, and the weekly trader inventory is 6,360 tons, with an increase of 560 tons [2] 3.5 Downstream Situation - The operating rate of domestic semi - steel tires is 78.25%, with an increase of 0.03 percentage points; the operating rate of domestic all - steel tires is 64.8%, with a decrease of 0.16 percentage points. The monthly output of all - steel tires is 5,539 million pieces, with a decrease of 61 million pieces; the monthly output of semi - steel tires is 1,308 million pieces, with a decrease of 427 million pieces. The inventory days of all - steel tires in Shandong are 41.96 days, with a decrease of 0.9 days; the inventory days of semi - steel tires in Shandong are 46.22 days, with a decrease of 0.78 days [2] 3.6 Industry News - As of May 29, the inventory of high - cis cis - butadiene rubber sample enterprises in China was 3.45 tons, an increase of 0.17 tons compared with the previous period (20250521), a month - on - month increase of 5.06%. The raw material market was weak this period, but the overall domestic supply was still sufficient. The bearish sentiment of industry players continued to rise. Coupled with the weakening of the natural rubber market, the price of the cis - butadiene rubber spot market continued to decline and there was still no trading follow - up. The inventories of sample production enterprises and sample trading enterprises both increased. As of May 29, the capacity utilization rate of Chinese semi - steel tire sample enterprises was 72.51%, a month - on - month decrease of 1.23 percentage points and a year - on - year decrease of 7.58 percentage points; the capacity utilization rate of Chinese all - steel tire sample enterprises was 60.80%, a month - on - month decrease of 1.29 percentage points and a year - on - year decrease of 4.40 percentage points. Most tire enterprises' equipment ran smoothly during the period, some enterprises had maintenance plans at the end of the month, and a few enterprises reduced production, dragging down the capacity utilization rate of tire enterprises month - on - month. In May 2025, the heavy - truck market in China sold about 83,000 vehicles (wholesale caliber, including exports and new energy), a slight decrease of 5% compared with April this year, and an increase of about 6% compared with 78,200 vehicles in the same period last year. Cumulatively, from January to May this year, the cumulative sales volume of the heavy - truck market in China was about 435,500 vehicles, a slight increase of about 1% year - on - year [2]

Group 1: Report Industry Investment Rating - No information provided Group 2: Core View of the Report - Recent raw material butadiene prices have been rising due to strong demand and unexpected shutdowns of some units, significantly increasing the production cost of cis - butadiene rubber. Driven by macro - positive news, the spot market price has strengthened, and the inventories of production and trading enterprises have decreased to varying degrees. However, some private cis - butadiene rubber plants are expected to restart, increasing supply. In terms of demand, the capacity utilization rate of domestic tire enterprises increased significantly last week, but most semi - steel tire enterprises have slow overall shipments and continued inventory growth, while full - steel tire capacity utilization is in a restorative growth state, with some enterprises facing increased shipment pressure, continued growth in finished product inventory, insufficient orders, and overall production scheduling lower than the pre - holiday average. The BR2507 contract should pay short - term attention to the support level around 12,000, and it is recommended to wait and see for now [2] Group 3: Summary by Relevant Catalogs Futures Market - The closing price of the main contract for synthetic rubber is 11,900 yuan/ton, a decrease of 170 yuan/ton; the position of the main contract is 15,064 yuan/ton, a decrease of 1,927 yuan/ton. The synthetic rubber 6 - 7 spread is - 115 yuan/ton, a decrease of 35 yuan/ton. The total warehouse receipt quantity of butadiene rubber in the warehouse is 6,820 tons, an increase of 200 tons [2] Spot Market - The mainstream price of cis - butadiene rubber (BR9000) from different manufacturers has decreased. The base difference of synthetic rubber is 450 yuan/ton, and the price of Brent crude oil is 70 dollars/barrel, a decrease of 0.16 dollars/barrel. The price of naphtha CFR Japan is 780 dollars/ton, unchanged; the intermediate price of butadiene CFR China is 1,200 dollars/ton, a decrease of 20 dollars/ton. The price of WTI crude oil is 62.03 dollars/barrel, a decrease of 0.66 dollars/barrel, and the mainstream price of butadiene in the Shandong market is 11,000 yuan/ton, a decrease of 225 yuan/ton [2] Upstream Situation - The weekly production capacity of butadiene is 14.78 million tons/week, unchanged; the capacity utilization rate is 68.02%, a decrease of 1.33 percentage points. The port inventory of butadiene is 30,870 tons, a decrease of 6,030 tons. The operating rate of Shandong refineries' atmospheric and vacuum distillation units is 47.28%, a decrease of 1.22 percentage points. The monthly output of cis - butadiene rubber is 128,300 tons, an increase of 16,500 tons; the capacity utilization rate is 79.2%, an increase of 4.46 percentage points. The production profit of cis - butadiene rubber is - 1,233 yuan/ton, a decrease of 1,060 yuan/ton. The social inventory of cis - butadiene rubber is 32,200 tons, a decrease of 1,400 tons; the manufacturer's inventory is 26,650 tons, a decrease of 1,000 tons; the trader's inventory is 5,470 tons, a decrease of 430 tons [2] Downstream Situation - The operating rate of domestic semi - steel tires is 78.33%, an increase of 19.98 percentage points; the operating rate of full - steel tires is 65.09%, an increase of 20.32 percentage points. The monthly output of full - steel tires is 13.69 million pieces, an increase of 3.09 million pieces; the monthly output of semi - steel tires is 59.66 million pieces, an increase of 11.56 million pieces. The inventory days of full - steel tires in Shandong are 42.77 days, an increase of 0.25 days; the inventory days of semi - steel tires in Shandong are 45.78 days, an increase of 0.69 days [2] Industry News - As of May 15, the inventory of high - cis cis - butadiene rubber sample enterprises in China decreased by 0.14 million tons compared with the previous period, a month - on - month decrease of 4.26%. The capacity utilization rate of semi - steel tire sample enterprises was 71.21%, a month - on - month increase of 24.50 percentage points and a year - on - year decrease of 7.98 percentage points; the capacity utilization rate of full - steel tire sample enterprises was 59.88%, a month - on - month increase of 18.19 percentage points and a year - on - year decrease of 5.40 percentage points. In April 2025, China's heavy - truck market sold about 90,000 vehicles, a month - on - month decrease of 19% compared with March and a year - on - year increase of about 9.4%. From January to April 2025, the cumulative sales of China's heavy - truck market were about 355,000 vehicles, showing year - on - year parity [2]

1. Report Industry Investment Rating - No information provided regarding the industry investment rating in the report. 2. Core Viewpoints - Recent raw material butadiene prices have been rising due to strong demand and unexpected shutdowns of some units, significantly increasing the production cost of butadiene rubber. Driven by macro - positive news, the spot market price has strengthened, and the inventories of production and trading enterprises have decreased to varying degrees. However, some private butadiene rubber units are expected to restart, increasing supply. In terms of demand, last week, the capacity utilization rate of domestic tire enterprises increased significantly month - on - month. Most semi - steel tire enterprises have returned to normal levels but with slow overall shipments and continued inventory growth. The capacity utilization rate of all - steel tires is in a restorative upward trend, but some enterprises have increased inventory due to shipment pressure, insufficient orders, and overall production scheduling below the pre - holiday average. The BR2507 contract is expected to fluctuate in the range of 12,000 - 12,600 in the short term [2]. 3. Summary by Relevant Catalogs 3.1 Futures Market - The closing price of the main contract for synthetic rubber was 12,070 yuan/ton, a decrease of 170 yuan/ton. The main contract position was 16,991, a decrease of 2,538. The synthetic rubber 6 - 7 spread was - 80 yuan/ton, unchanged. The total warehouse receipt quantity of butadiene rubber was 6,620 tons, a decrease of 60 tons [2]. 3.2 Spot Market - The mainstream price of BR9000 butadiene rubber from Qilu Petrochemical in Shandong was 12,500 yuan/ton, unchanged; from Daqing Petrochemical in Shandong was 12,500 yuan/ton, unchanged; from Daqing Petrochemical in Shanghai was 12,500 yuan/ton, unchanged; from Maoming Petrochemical in Guangdong was 12,600 yuan/ton, unchanged. The basis of synthetic rubber was 380 yuan/ton, unchanged. Brent crude oil was 65.54 dollars/barrel, an increase of 0.13 dollars/barrel. Naphtha CFR Japan was 569.38 dollars/ton, an increase of 4 dollars/ton. The Northeast Asian ethylene price was 780 dollars/ton, unchanged. The CFR China butadiene intermediate price was 1,220 dollars/ton, unchanged. WTI crude oil was 62.69 dollars/barrel, an increase of 0.2 dollars/barrel. The mainstream price of butadiene in the Shandong market was 11,225 yuan/ton, a decrease of 125 yuan/ton [2]. 3.3 Upstream Situation - The weekly butadiene production capacity was 14.78 million tons/week, unchanged. The weekly butadiene capacity utilization rate was 68.02%, a decrease of 1.33 percentage points. The port butadiene inventory was 30,870 tons, a decrease of 6,030 tons. The operating rate of Shandong local refineries' atmospheric and vacuum distillation units was 47.28%, a decrease of 1.22 percentage points. The monthly output of butadiene rubber was 128,300 tons, an increase of 16,500 tons. The weekly capacity utilization rate of butadiene rubber was 79.2%, an increase of 4.46 percentage points. The weekly production profit of butadiene rubber was - 1,233 yuan/ton, a decrease of 1,060 yuan/ton. The weekly social inventory of butadiene rubber was 32,200 tons, a decrease of 1,400 tons. The weekly manufacturer inventory of butadiene rubber was 26,650 tons, a decrease of 1,000 tons. The weekly trader inventory of butadiene rubber was 5,470 tons, a decrease of 430 tons [2]. 3.4 Downstream Situation - The operating rate of domestic semi - steel tires was 78.33%, an increase of 19.98 percentage points. The operating rate of domestic all - steel tires was 65.09%, an increase of 20.32 percentage points. The monthly output of all - steel tires was 13.69 million pieces, an increase of 3.09 million pieces. The monthly output of semi - steel tires was 59.66 million pieces, an increase of 11.56 million pieces. The inventory days of all - steel tires in Shandong were 42.77 days, an increase of 0.25 days. The inventory days of semi - steel tires in Shandong were 45.78 days, an increase of 0.69 days [2]. 3.5 Industry News - As of May 15, the inventory of high - cis butadiene rubber sample enterprises in China was 32,100 tons, a decrease of 1,400 tons from the previous period (May 7, 2025), a month - on - month decrease of 4.26%. As of May 15, the capacity utilization rate of semi - steel tire sample enterprises in China was 71.21%, a month - on - month increase of 24.50 percentage points and a year - on -，month increase of 24.50 percentage points and a year - on - year decrease of 7.98 percentage points; the capacity utilization rate of all - steel tire sample enterprises was 59.88%, a month - on - month increase of 18.19 percentage points and a year - on - year decrease of 5.40 percentage points. In April 2025, the domestic heavy - truck market sold about 90,000 vehicles (wholesale, including exports and new energy), a month - on - month decrease of 19% from March and a year - on - year increase of about 9.4% compared with 82,300 vehicles in the same period last year. From January to April 2025, the cumulative sales of the domestic heavy - truck market were about 355,000 vehicles, showing a year - on - year flat [2].

Report Summary 1. Report Industry Investment Rating - Not provided in the report. 2. Core Viewpoints - Recently, the domestic raw material supply is abundant, prices are weakening, and cost support is insufficient. The overall inventory of butadiene rubber production enterprises has decreased slightly. Under the expectation of increased supply, the trading focus of the spot market is under pressure. The inventory of production enterprises has decreased, while that of sample trading enterprises has increased, and the inventory level is at a medium level within the year. It is expected that the inventory of butadiene rubber enterprises will increase in the short term. [2] - Last week, the capacity utilization rate of domestic tire enterprises decreased significantly on a week - on - week basis. This is mainly because some enterprises gradually entered the maintenance or production - reduction operation stage due to the approaching holiday, which dragged down the capacity utilization rate. The capacity utilization rate is expected to gradually recover after the holiday. The short - term trading range for the BR2506 contract is recommended to be between 11,000 - 11,800 yuan/ton. [2] 3. Summary by Relevant Catalogs Futures Market - The closing price of the main contract for synthetic rubber is 11,315 yuan/ton, with a week - on - week increase of 235 yuan/ton; the position volume of the main contract is 25,743, with a week - on - week decrease of 241. The 6 - 7 spread of synthetic rubber is - 75 yuan/ton, with a week - on - week increase of 85 yuan/ton. The total number of warehouse receipts for butadiene rubber in warehouses is 7,280 tons, with no change. [2] Spot Market - The mainstream price of butadiene rubber (BR9000, Qilu Petrochemical) in Shandong is 11,600 yuan/ton, with a week - on - week decrease of 50 yuan/ton; the mainstream price of butadiene rubber (BR9000, Daqing Petrochemical) in Shandong is 11,550 yuan/ton, with a week - on - week decrease of 50 yuan/ton; the mainstream price of butadiene rubber (BR9000, Daqing Petrochemical) in Shanghai is 11,600 yuan/ton, with no change; the mainstream price of butadiene rubber (BR9000, Maoming Petrochemical) in Guangdong is 11,650 yuan/ton, with a week - on - week decrease of 50 yuan/ton. The basis of synthetic rubber is 285 yuan/ton, with a week - on - week decrease of 285 yuan/ton. [2] Upstream Situation - Brent crude oil is at $60.23 per barrel, with a week - on - week decrease of $1.06; WTI crude oil is at $57.13 per barrel, with a week - on - week decrease of $1.16. The price of Northeast Asian ethylene is $790 per ton, with no change; the price of naphtha CFR Japan is $546.25 per ton, with a week - on - week decrease of $12. The intermediate price of butadiene CFR China is $1,000 per ton, with no change; the mainstream price of butadiene in the Shandong market is 9,200 yuan/ton, with no change. [2] - The weekly production capacity of butadiene is 147,800 tons, with a week - on - week increase of 8,500 tons; the capacity utilization rate of butadiene is 68.86%, with a week - on - week decrease of 1.89 percentage points. The port inventory of butadiene is 36,500 tons, with a week - on - week increase of 1,700 tons; the operating rate of Shandong local refineries' atmospheric and vacuum distillation units is 48.5%, with a week - on - week increase of 1.39 percentage points. [2] - The monthly output of butadiene rubber is 128,300 tons, with a month - on - month increase of 16,500 tons; the weekly capacity utilization rate of butadiene rubber is 67.17%, with a week - on - week increase of 4.41 percentage points. The weekly production profit of butadiene rubber is 136 yuan/ton, with a week - on - week increase of 515 yuan/ton. The social inventory of butadiene rubber is 32,300 tons, with a week - on - week increase of 200 tons; the manufacturer's inventory of butadiene rubber is 26,850 tons, with a week - on - week decrease of 1,790 tons; the trader's inventory of butadiene rubber is 5,100 tons, with a week - on - week increase of 1,490 tons. [2] Downstream Situation - The operating rate of domestic semi - steel tires is 72.43%, with a week - on - week decrease of 5.68 percentage points; the operating rate of domestic all - steel tires is 56.24%, with a week - on - week decrease of 6.22 percentage points. The monthly output of all - steel tires is 3.09 million pieces; the monthly output of semi - steel tires is 59.66 million pieces. [2] - The inventory days of all - steel tires in Shandong are 43.08 days, with a week - on - week increase of 0.35 days; the inventory days of semi - steel tires in Shandong are 45.91 days, with a week - on - week increase of 0.31 days. [2] Industry News - As of April 30, according to Longzhong Information statistics, the inventory of high - cis butadiene rubber sample enterprises in China was 32,000 tons, a decrease of 300 tons compared with the previous period (April 23, 2025), a week - on - week decrease of 0.93%. During this period, approaching the Labor Day holiday, some downstream enterprises made appropriate stockpiling of raw materials. The slowdown in the continuous increase of the raw material butadiene side alleviated the market's bearish sentiment. However, under the influence of the expected increase in supply, the trading focus of the现货 market was under pressure. The inventory of sample production enterprises decreased, while that of sample trading enterprises increased. [2] - As of April 30, according to Longzhong Information statistics, the capacity utilization rate of Chinese semi - steel tire sample enterprises was 66.69%, a week - on - week decrease of 5.67 percentage points and a year - on - year decrease of 12.29 percentage points; the capacity utilization rate of Chinese all - steel tire sample enterprises was 59.54%, a week - on - week decrease of 6.25 percentage points and a year - on - year increase of 11.74 percentage points. [2]