According to the Commodity Market Analysis System of Shengyi Society, the domestic price of polyester staple fiber showed a weak trend this week (July 14-18). As of July 18, the average market price of domestic polyester staple fiber (1.4D * 38mm) was 6643 yuan/ton, a decrease of 0.36% from the beginning of the week.
The international crude oil market is currently characterized by loose supply and poor demand, coupled with the overall easing of the geopolitical situation compared to the previous period, which has limited support for oil prices and mainly led to fluctuating adjustments. As of July 17th, the settlement price of the August WTI crude oil futures contract in the United States was $67.54 per barrel, and the settlement price of the September Brent crude oil futures contract was $69.52 per barrel.
The PTA market as a whole maintained a weak trend. As of July 19th, the average price of PTA in the East China region was 4776 yuan/ton, a decrease of 0.28% from the beginning of the week. In the second half of the week, prices rose slightly due to the boost of crude oil. The supply remains stable, there are no new changes in the equipment, and the overall operating rate of the industry is around 80%. Among them, the 2 million ton plant of Yisheng Hainan reduced its load on July 1st due to some reasons, and increased its load on July 6th. In June, the 4.5 million ton plant of Fuhai Chuang and the 2.5 million ton plant of Dongying Weilian were still shut down.
The terminal has entered the seasonal off-season, and the downstream yarn market remains weak, resulting in a lack of enthusiasm for raw material procurement. The high inventory, shortage of orders, and losses in the weaving industry have led to a continued decline in load to below 56%. Textile export orders continue to decline, dragged down by sluggish demand.
Business analysts believe that the traditional off-season terminal negative feedback continues, and the market buying and selling atmosphere is flat. Insufficient cost support and weak demand have resulted in poor performance, and it is expected that the price of polyester staple fibers will continue to remain weak.

This week, the domestic epoxy propane market trend has declined. According to the monitoring system of Shengyi Society, as of July 17th, the benchmark price of Shengyi Society’s epoxy propane was 7343.33 yuan/ton, an increase of 0.23% compared to July 1st.
Price influencing factors:
Raw material side: The market prices of raw materials propylene and liquid chlorine have declined, providing weak support for the price of epoxy propane. According to the market analysis system of Shengyi Society, as of July 16th, the benchmark price of propylene in Shengyi Society was 6500.75 yuan/ton, a decrease of 3.27% compared to the beginning of this month (6720.75 yuan/ton).
Supply side: In 2025, there will be an increase in production capacity and supply, such as the construction of 270000 tons/year of epoxy propane by PetroChina Guangxi Petrochemical (put into operation at the end of June 2025), and the addition of 300000 tons/year of epoxy propane by Huayi Qinzhou Chemical New Materials (put into trial operation in 2026). The expansion of production capacity intensifies market competition, and the pattern of loose market supply is difficult to change.
On the demand side: downstream demand for epoxy propane replenishment is urgent, and the market trading atmosphere is relatively quiet. Affected by tariff policies, downstream terminal markets have limited procurement of raw materials. Overall, the demand is facing limited support from the epoxy propane market, and the market may mainly operate weakly and steadily in the later stage.
Market forecast:
Business Society’s epoxy propane analyst believes that the supply side of epoxy propane is relatively loose, with insufficient support for raw material prices. In addition, downstream demand is weak, and there is a need for replenishment, resulting in poor market trading. It is expected that the epoxy propane market will mainly operate weakly and steadily in the later stage, and more attention should be paid to changes in raw material prices and downstream supply and demand.

1、 Price trend
According to data monitored by Shengyi Society, as of July 16th, the average price of industrial grade high-quality cyclohexane in China was 7233 yuan/ton, a decrease of 0.91% compared to the same period last week. The cyclohexane market has remained stable, with no significant changes in prices and a slight decline. Currently, downstream demand is insufficient, and the driving force for price increases is weak. Demand replenishment is the main focus, and the spot market supply is sufficient. In the short term, supply-demand balance is the main operation.
2、 Market analysis
At present, the focus of negotiations in the domestic cyclohexane market is running steadily, and downstream purchasing willingness is average. Downstream replenishment is mainly based on demand, and the negotiation atmosphere is not positive. Currently, cyclohexane inventory pressure still exists, inventory is running at a high level, spot supply is sufficient, market consumption is slow, and contract customers are mainly in urgent need of procurement. Downstream procurement lacks enthusiasm, and the overall cyclohexane market is under pressure. Currently, the mainstream transaction price is concentrated at around 7400 yuan/ton, and the cyclohexane market price is weak this week.
Upstream: As of July 16th, the price of pure benzene in East China has been weak, with a narrow decline. Currently, the price is around 5900 yuan/ton. Downstream styrene inventory is running at a high level, actively shipping, and sales in the East China market have increased. Jiangsu Xinhai Petrochemical’s pure benzene price is stable, with a price of 6005 yuan/ton. Qicheng Petrochemical’s pure benzene price has been lowered by 30 yuan/ton, with a price of 5800 yuan/ton. Wudi Xinyue’s pure benzene price has been lowered by 50 yuan/ton today, with a price of 5803 yuan/ton. The factory equipment is operating normally, and inventory is moderate.
Downstream: As of July 16th, the cyclohexanone production in the South China market has been consolidated and operated. Downstream purchases are made according to demand, and the supply of spot goods in the market is stable. The production capacity of Shandong Hualu Hengsheng cyclohexanone plant is 520000 tons, mainly used for caprolactam, with a small export price of 7100 yuan. Currently, the cyclohexanone market is mainly stable and operating.
3、 Future forecast
The cyclohexane analyst from Shengyi Society believes that the downstream demand for cyclohexane is generally moderate, with on-demand procurement being the main focus. It is expected that the cyclohexane market will remain stable in the short term.

According to the Commodity Market Analysis System of Shengyi Society, in early July, the main bearish trend was the weak downward trend in the domestic adipic acid market. On July 1st, the average market price of adipic acid was 7366 yuan/ton. On July 15th, the average market price of adipic acid in China was 7133 yuan/ton, a decrease of 3.17%.
Negative main trend: domestic adipic acid market declines
At the beginning of July, the prices of pure benzene and cyclohexanone raw materials for adipic acid fell weakly, and the demand for terminal plastics industry was sluggish, resulting in an overall decline in prices for adipic acid manufacturers. The domestic adipic acid market has average transactions and a weak market. As of July 11th, the average market price of adipic acid has fallen to around 7133 yuan/ton, with an overall decline of over 3%. Starting from July 12th, the market for adipic acid has gradually stabilized, with the price remaining at 7100 yuan/ton without any fluctuations. In early July, the trend of adipic acid was mainly weak.
An analyst from Shengyi Society believes that in late July, the rigid demand in the terminal industry was poor, and the boost to the raw material market was limited. Therefore, the market for adipic acid will continue to weaken in the future.

This week, the price of isooctanol fluctuated and fell
According to the Commodity Market Analysis System of Shengyi Society, as of July 14th, the price of isooctanol was 7550 yuan/ton, a fluctuating decrease of 2.37% compared to the price of 7733.33 yuan/ton on July 7th. This week, the price of isooctanol fluctuated and fell. The isooctanol enterprise equipment resumed this week, the operating rate of isooctanol equipment increased, the production of isooctanol increased, and the supply of isooctanol increased; Downstream plasticizer companies have seen a decrease in production, leading to a decrease in demand for isooctanol and a decrease in supply and demand. As a result, the price of isooctanol has fluctuated and fallen.
Downstream plasticizer DOP prices fluctuate and fall
According to the Commodity Market Analysis System of Shengyi Society, as of July 14th, the DOP price was 8084.17 yuan/ton, a fluctuating decrease of 2.12% compared to the DOP price of 8259.17 yuan/ton on July 7th. This week, DOP production has decreased, and the operating rate of the plasticizer DOP industry has dropped to around 40%. Plasticizer production has also decreased, and plasticizer prices have fluctuated and fallen. The production of plasticizer DOP has decreased, and the demand for isooctanol is weak.
Future expectations
According to the data analyst of Shengyi Society’s octanol products, in terms of demand, the production of DOP equipment by plasticizer companies has decreased, the production of DOP plasticizers has decreased, the demand for isooctanol has decreased, and the support for isooctanol has weakened; In terms of supply, the equipment of isooctanol enterprises has resumed operation, and the supply of isooctanol has increased. In the future, as the supply of isooctanol increases and demand decreases, the price of isooctanol fluctuates and falls.