合成橡胶市场周报-20250829

Report Summary 1. Strategy Suggestion - The short - term price of the br2510 contract is expected to fluctuate between 11,660 and 12,200 [7]. 2. Market Review and Outlook - Review: This week, the price of cis - butadiene rubber in the Shandong market showed a volatile and upward trend, with the spot price fluctuating between 11,550 and 12,050 yuan/ton. Sinopec and PetroChina raised the price of high - cis butadiene rubber by 200 yuan/ton. As of August 28, 2025, the mainstream ex - factory price of high - cis butadiene rubber in China was between 12,100 and 12,200 yuan/ton [8]. - Outlook: Most previously shut - down butadiene rubber plants have restarted, increasing domestic production. With the rise in butadiene and mainstream cis - butadiene rubber supply prices, the shipping pressure on producers has increased, and inventories have generally risen. Next week, the Xinjiang Land cis - butadiene rubber plant is expected to restart, further increasing supply slightly. In terms of demand, most semi - steel tire enterprises' operations were stable, but some had maintenance due to shipping pressure, dragging down the overall capacity utilization rate. Full - steel tire enterprises generally maintained production control, and some had reduced production at the end of the week due to maintenance. Some enterprises have 3 - 6 days of maintenance planned at the end of the month and early next month, which may still drag down short - term capacity utilization [8]. 3. Futures Market - Price Movement: The price of the synthetic rubber futures main contract rose this week, with a weekly increase of 2.06% [12]. - Position Analysis: Information about the change in the top 20 positions of cis - butadiene rubber is provided, but specific data is not detailed in the summary [13]. - Inter - delivery Spread: As of August 29, the spread between the 10 - 11 contracts of butadiene rubber was 20 [18]. - Warehouse Receipts: As of August 29, the warehouse receipts of cis - butadiene rubber were 2,490 tons, unchanged from last week [21]. 4. Spot Market - Price and Basis: As of August 28, the price of Qilu Petrochemical BR9000 in the Shandong market was 11,950 yuan/ton, an increase of 200 yuan/ton from last week. The basis of butadiene rubber was - 30 yuan/ton, a decrease of 5 yuan/ton from last week [25]. 5. Upstream Market - Naphtha and Ethylene Prices: As of August 28, the CFR mid - price of naphtha in Japan was 593.88 US dollars/ton, an increase of 5.88 US dollars/ton from last week. The CIF mid - price of Northeast Asian ethylene was 842 US dollars/ton, an increase of 12 US dollars/ton from last week [29]. - Butadiene Capacity Utilization and Port Inventory: As of August 29, the weekly capacity utilization rate of butadiene was 67.91%, a decrease of 0.26% from last week. The port inventory of butadiene was 24,000 tons, a decrease of 3,300 tons from last week [32]. 6. Industry Situation - Production and Capacity Utilization: In July 2025, the domestic production of cis - butadiene rubber was 129,200 tons, an increase of 6,700 tons from the previous month. As of August 28, the weekly capacity utilization rate of domestic cis - butadiene rubber was 75.85%, an increase of 6.7% from last week [36]. - Production Profit: As of August 28, the domestic production profit of cis - butadiene rubber was - 478 yuan/ton, a decrease of 20 yuan/ton from last week [39]. - Inventory: As of August 29, the domestic social inventory of cis - butadiene rubber was 31,720 tons, an increase of 1,110 tons from last week. The manufacturer inventory was 25,100 tons, an increase of 1,900 tons from last week, and the trader inventory was 6,620 tons, a decrease of 790 tons from last week [43]. 7. Downstream Market - Tire Capacity Utilization: As of August 28, the capacity utilization rate of China's semi - steel tire sample enterprises was 70.97%, a month - on - month decrease of 0.90 percentage points and a year - on - year decrease of 8.73 percentage points. The capacity utilization rate of full - steel tire sample enterprises was 64.89%, a month - on - month decrease of 0.08 percentage points and a year - on - year increase of 5.10 percentage points [46]. - Tire Exports: In July 2025, China's tire exports were 812,600 tons, a month - on - month increase of 8.87% and a year - on - year increase of 11.48%. From January to July, the cumulative tire exports were 4,933,900 tons, a cumulative year - on - year increase of 7.18%. Among them, the exports of passenger car tires were 325,900 tons, a month - on - month increase of 16.78% and a year - on - year increase of 7.20%. From January to July, the cumulative exports of passenger car tires were 1,940,300 tons, a cumulative year - on - year increase of 2.51%. The exports of truck and bus tires were 454,400 tons, a month - on - month increase of 11.60% and a year - on - year increase of 12.99%. From January to July, the cumulative exports of truck and bus tires were 2,789,100 tons, a cumulative year - on - year increase of 6.52% [49].