Introduction: From July to August 2026, domestic unsaturated polyester resin (UPR) prices moved upward with fluctuations, while production output and operating rates continued to decline. At the end of August, feedstock prices surged broadly; driven by multiple bullish factors, UPR plants raised ex-works quotes, leading to a modest uptick in market prices.
1. Market Review
As of the close on August 26, the reference negotiated price for 196# grade resin in East China stood at 10,200-10,300 yuan/ton, up 200-300 yuan/ton from the end of July, representing an increase of 3.00%-3.03%.
During July-August, the spot UPR market in China continued to shift upward. Over this period, weighed down by bearish factors such as accumulating spot inventory pressure and softening downstream demand, multiple domestic UPR production units entered shutdown or load-reduction cycles, and the industry as a whole embarked on a destocking phase. Only after inventories fell to low levels did some units gradually resume production. Despite the sustained price climb over the two months, downstream buyers showed marked resistance to high-priced feedstock, and cost pass-through was hindered, making it difficult to effectively transfer high prices to end users. Domestic producers gradually slipped from a profitable position into loss territory. In early August, supported by continuous upstream cost rises, plants successively raised ex-works quotes, and the price negotiation center in East China moved up noticeably. The price spread between high and low grades persisted, trader sentiment turned firmer, and inquiry activity recovered somewhat. However, at elevated prices, actual transaction volumes remained limited, with real orders still dominated by small-lot, need-based purchasing, and the overall trading atmosphere stayed cautious.
2. Supply Side: Numerous Plant Shutdowns and Load Reductions, With Root Cause Lying in Demand Contraction
Many units were shut down during July-August, and operating rates edged down. The industry's operating rate fell on a staged basis, with output declining accordingly.
According to statistics from Chempricehub Information, during July-August, the average capacity utilization rate of China's UPR industry was only 33%, down 2 percentage points year-on-year, the lowest level for the same period in three years. During this phase, a total of eight UPR units in China successively underwent maintenance shutdowns, involving 1.11 million tons of capacity, accounting for 16% of total domestic UPR capacity, with maintenance-related output losses reaching 25,000 tons. The dense concentration of unit maintenance reflects a severe contraction in resin plant orders. In the medium to long term, the total domestic UPR capacity base remains relatively large; if feedstock prices continue to rise and demand shows no sign of recovery, the supply side may tighten further.
3. Cost-Profit Analysis: UPR Profits Slide Into Loss Territory
According to statistics from Chempricehub Information, during July-August 2026, the average price spread between domestic UPR and styrene remained at around 1,178 yuan/ton, and the industry's average gross profit stood at -169 yuan/ton, indicating that UPR producers were in an overall loss-making state. In mid-to-late August, as feedstock prices surged, the industry's average gross loss widened further, deepening the extent of losses. Therefore, the recent round of price hikes by UPR plants did not effectively improve profit conditions, but was rather a passive mark-up driven by cost pressure. Specifically, in August, feedstock styrene prices fluctuated in a range above 8,700 yuan/ton, while diethylene glycol (DEG) — which has a particularly notable impact on UPR — surpassed the 10,000 yuan/ton mark. Feedstock prices provided strong cost support for UPR, but resin prices found it difficult to rise substantially in tandem. This clearly shows that the cost side exerted a strong driving force on UPR prices, keeping industry profits in a persistent loss state.
4. Demand Side: Need-Based Procurement Dominates, Lack of Concentrated Restocking Caps UPR Upside
During the recent UPR price uptrend, downstream buyers overall did not engage in large-scale proactive restocking, remaining largely focused on need-based procurement, with persistent structural divergence: FRP daylighting sheet resin was supported by rigid order demand but saw no explosive stockpiling, with buyers only purchasing on an as-needed basis; demand from the quartz stone industry weakened, and the "Golden September" peak season has yet to materialize; plants maintained low inventory strategies and avoided high-priced supply; and since July, UPR export orders have been lackluster, edging down slightly from Q2. Affected by these factors, the UPR market has shown a pattern of "inquiries picking up with prices, but little willingness to chase gains," with actual transaction follow-through remaining weak at high prices — this is the core contradiction capping the rebound height of this market cycle.
5. Market Outlook
1. Short term (early September to mid/late September): The UPR market is likely to continue a firm-range oscillation pattern. Feedstock prices are currently on a strong footing, cost-side support persists, and expectations of further shutdowns or load reductions among UPR producers are increasing. Factory offers remain firm, but with demand lacking coordinated bulk restocking, the upside for prices is limited. On the whole, the market is more of a low-level repair, prone to the phenomenon of "quotes moving up while actual orders fail to follow." Going forward, close attention should be paid to downstream demand performance and actual on-the-ground transaction activity.
2. Medium term (September-October "Golden September" window): If downstream demand recovers during the traditional peak season, with concentrated restocking in end-use sectors such as FRP and quartz stone, UPR prices still have room for further upward revision; conversely, if the terminal recovery falls short of expectations, and previously disrupted units gradually return to normal operation, UPR supply will recover step by step, and the market will face downward pressure risk after only a brief rebound.
Overall, the core logic behind this round of UPR price increases stems from strong cost-side support, compounded by spot supply contraction caused by maintenance and shutdowns of multiple units in August — not demand-driven. Coupled with producers' price-holding behavior forced by losses, the sustainability and magnitude of the market uptrend will depend on the realization of real downstream orders, and market participants are advised to monitor this closely.
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