Lead: From July 10 to July 16, 2026, the domestic styrene market experienced a strong upward trend. As of July 16, the average spot price in Jiangsu closed at 8,183 yuan/ton, up 706 yuan/ton from the previous week, a surge of 9.44%. This round of price increases was strongly driven by geopolitical conflicts in the international crude oil market, coupled with dual support from tightening domestic styrene supply and destocking at ports. However, end-user demand was lackluster, and downstream product price increases significantly lagged behind styrene. This ultimately resulted in compressed profitability for EPS and PS, while ABS, although seeing some profit recovery, remained in deep loss territory.
The weekly average price of Brent crude oil surged from $73.62/barrel to $81.06/barrel, a single-week increase of 10.11%. The primary driver of this oil price upswing was the escalation of geopolitical risks in the Middle East, heightened tensions between the US and Iran, and disruptions to shipping through the Strait of Hormuz. Market concerns over potential crude oil supply interruptions rapidly increased risk premiums. Coupled with overseas plant maintenance and tightening regional supply, international oil prices strengthened across the board, pushing up the cost baseline for all chemical raw materials.
The crude oil surge quickly transmitted down the aromatics value chain. The weekly average spot price of pure benzene in East China rose to 7,606 yuan/ton, an increase of 866 yuan/ton from the previous week, or 12.85%. Concentrated maintenance at domestic refineries led to a decline in pure benzene output. Continued port destocking provided fundamental support. Combined with the strong cost pull from crude oil, pure benzene prices jumped sharply, directly raising the feedstock cost for styrene production. Market holders' willingness to support prices strengthened significantly, providing a solid bottom support for the sustained upward trend in styrene.
The supply side exhibited a pattern of reduced domestic production and significant inventory drawdowns. The temporary tightening of supply provided robust support for styrene prices.
On the domestic supply front, weekly styrene production fell to 317,000 tons, down 9,500 tons from the previous week, a sequential decrease of 2.91%. Industry operating rates dropped to 63.24%, down 1.86% week-on-week. The decline in output was primarily due to maintenance at the Shaanxi Yanchang plant, combined with proactive load reductions by enterprises facing persistent industry losses, leading to a contraction of available domestic supply.
Regarding port inventory, styrene sample inventory in Jiangsu stood at 112,800 tons, a decrease of 19,000 tons from the previous week, a drop of 14.42%. Of this, commercial inventory was 49,200 tons, a significant drawdown of 33%. During the period, arrivals decreased sharply due to port closures and navigation restrictions, while offtake volumes consistently exceeded arrivals. This deep destocking further tightened spot market liquidity and amplified bullish sentiment.
Total consumption by the three major downstream sectors (PS, EPS, ABS) during the period edged down slightly to 234,700 tons, a marginal decrease of 200 tons from the previous week. Overall demand remained in a weak pattern. Against the backdrop of substantial raw material price increases, downstream price hikes were notably lower than those for styrene.
Analyzed by segment:
Overall, downstream end-user orders were generally lackluster, limited to essential procurement. A sentiment of "fear of heights" prevailed, with weak willingness to purchase at elevated prices. The unilateral price increase of raw materials lacked support from demand, resulting in a progressive narrowing of price increases along the value chain.
During the period, the profit landscape across the chain showed a bipolar trend. Styrene and ABS were mired in losses, while only EPS and PS retained meager processing margins. The theoretical weekly average profit for non-integrated styrene units in China was -580 yuan/ton. While the loss narrowed by 123 yuan compared to the previous period, the industry remained unprofitable. The price increase of pure benzene during this round exceeded that of styrene, keeping the benzene-styrene spread low. This significantly compressed the production margins for integrated refining-chemical plants, leading to continued cost-driven production cuts.
Cost side: The US-Iran geopolitical conflict continues to escalate, suggesting an upward bias for international oil prices. The tight supply situation for pure benzene is expected to persist. Cost support for styrene is unlikely to fade in the near term.
Supply side: Next week, vessels delayed by the earlier port closures are expected to arrive in a concentrated manner. Port inventories may see a slight accumulation. However, maintenance at multiple domestic units and ongoing cost-driven load reductions will limit the increase in domestic supply.
Demand side: Downstream 3S (PS, EPS, ABS) operating rates are expected to rebound slightly. Essential procurement may release slowly. However, the end-user off-season will constrain any substantial recovery in demand.
Profit side: Losses for non-integrated styrene units may narrow slightly. Processing profits for PS and EPS will continue to be squeezed by rising feedstock costs. The deep loss situation for ABS is unlikely to see significant improvement.
Therefore, barring unexpected bearish developments such as a rapid de-escalation of geopolitical conflicts or a sharp fall in crude oil prices, the styrene market is likely to maintain a high-level volatile trend next week. The expected range for the Jiangsu spot price is 8,400-8,800 yuan/ton. However, lackluster downstream demand will continue to limit upward potential. Should crude oil sentiment turn negative, styrene faces a risk of a rapid correction. Key factors to monitor going forward include international crude oil fluctuations, port arrival and offtake schedules, downstream plant maintenance dynamics, changes in export orders, and overall market trading sentiment.
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