Lead: Recently, the Jiangsu styrene market has shown a trend of rallying followed by high-level consolidation, with the price center shifting significantly upward. During the period, the high-end spot transaction price in Jiangsu was 9,090 yuan/ton, and the low-end was 8,735 yuan/ton, with a spread of 355 yuan/ton. Driven by cost support from crude oil and benzene, combined with a slight destocking of port inventories, increased inquiries for export orders, and rising expectations of future supply contraction, market sentiment turned bullish. Holders were firm in their offers and reluctant to sell, pushing spot prices higher. On the demand side, overall performance was weak, with downstream end-user orders remaining tepid. Acceptance of high-priced raw materials was insufficient, and the willingness to chase prices was low, making it difficult for market transactions to follow effectively. Overall, this round of styrene price increases was mainly driven by cost elevation and supply contraction expectations. End-user demand did not provide effective support, resulting in a market pattern of strong costs versus weak demand. The upward momentum at high levels is limited, maintaining a trend of volatile strength and high-level pressure. The core market focus is on the positive support from the cost side versus the negative drag from the demand side. If international crude oil maintains a relatively strong trend, the East China styrene spot market is expected to operate with a volatile bias next week, with the mainstream transaction price range estimated at 8,900-9,500 yuan/ton.
Cost Elevation and Supply Contraction Drive Styrene Market Rally and Subsequent Volatility
Recently, the Jiangsu styrene market has shown a trend of rallying followed by high-level consolidation, with the price center shifting significantly upward. During the period, the high-end spot transaction price in Jiangsu was 9,090 yuan/ton, and the low-end was 8,735 yuan/ton, with a spread of 355 yuan/ton. Driven by cost support from crude oil and benzene, combined with a slight destocking of port inventories, increased inquiries for export orders, and rising expectations of future supply contraction, market sentiment turned bullish. Holders were firm in their offers and reluctant to sell, pushing spot prices higher. On the demand side, overall performance was weak, with downstream end-user orders remaining tepid. Acceptance of high-priced raw materials was insufficient, and the willingness to chase prices was low, making it difficult for market transactions to follow effectively. Overall, this round of styrene price increases was mainly driven by cost elevation and supply contraction expectations. End-user demand did not provide effective support, resulting in a market pattern of strong costs versus weak demand. The upward momentum at high levels is limited, maintaining a trend of volatile strength and high-level pressure.
Significant Cost Pressure, Slight Supply Contraction
The contraction in styrene supply this week was due to a combination of planned unit maintenance shutdowns and production cuts driven by cost pressure. During the period, styrene units at Jingbo Staramy and Xinpu Chemical successively shut down for maintenance. Although the Zibo Junchen unit completed its restart and resumed production, partially restoring market supply, the overall volume from shutdowns and reductions was greater than the volume from restarts and increases, creating a rigid supply gap. At the same time, industry processing margins remained weak, leading to ongoing cost-driven production cuts, resulting in periodic production losses. Together, these factors caused a simultaneous decrease in total production and industry operating rates for this period. During this cycle (July 17-23, 2026), total domestic styrene production was 309,700 tons, a decrease of 7,300 tons from the previous cycle (July 10-16, 2026), a month-on-month decrease of 2.30%. The overall industry capacity utilization rate was 61.75%, a decrease of 1.49 percentage points month-on-month.
Docks Resume Navigation Gradually, Jiangsu Port Inventory Fluctuates Little
As of July 20, 2026, the total sample inventory of styrene at Jiangsu ports was 91,800 tons, a decrease of 1,000 tons compared to the same period last week, or -1.08%. Commercial inventory stood at 48,800 tons, a decrease of 400 tons from the previous cycle, or -0.81%.
In the 7 days from July 13 to July 19, docks gradually resumed navigation and vessel traffic stabilized. The total arrival volume of styrene at Jiangsu social storage via vessels, pipelines, and truck discharge was 35,700 tons, compared to 35,700 tons in the same period last year (7 days). Withdrawal volume during this cycle was 36,700 tons, compared to 23,500 tons during the same period last year.
(Data source: Chempricehub Information)
During the period July 20-26 (7 days total), as a concentrated batch of export orders was negotiated earlier in the market, some cargoes are expected to be consolidated at ports this week, likely leading to a slight decrease in port arrival volumes. After the continuous rise in styrene prices, spot market purchasing sentiment weakened. However, downstream factories still maintain demand for essential purchases, keeping port withdrawal volumes at stable levels. Considering both arrivals and withdrawals, Jiangsu styrene port inventory has room for a slight destocking in the short term.
Styrene Analysis: The geopolitical conflict between the Houthi forces and Saudi Arabia has reignited, adding a geopolitical risk premium that has driven up international crude oil prices, significantly boosting bullish sentiment across the chemical market. On the cost side, the supply of benzene has increased somewhat, alleviating the previously tight circulation situation. However, the sustained strength of crude oil is driving the benzene negotiation center upward, providing solid cost support for styrene. On the supply-demand front, the low-supply pattern in the styrene market continues. Although downstream demand has weakened slightly, the concentrated export shipments towards the end of the month will bring marginal improvement to the fundamental picture. As the month-end approaches, domestic trade shipments and cargo dispatches are increasing. Port inventory is expected to accumulate slightly next week in the short term, while the weak end-user domestic demand situation remains unchanged. Overall, the core market focus is on the positive support from the cost side versus the negative drag from the demand side. If international crude oil maintains a relatively strong trend, the East China styrene spot market is expected to operate with a volatile bias next week, with the mainstream transaction price range estimated at 8,900-9,500 yuan/ton.
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