In early October, the overall performance of the polyester bottle chip market was weak, with prices fluctuating downwards. According to the price data from Shengyi Society, on October 10th, the market price in East China closed at 5812 yuan/ton, a decrease of about 40 yuan/ton from before the holiday. Faced with a weak market, most polyester bottle chip companies choose to lower their prices, ranging from 20-50 yuan/ton, resulting in a shift in the actual transaction center of the market.
Significant collapse of cost support
The ceasefire agreement reached between Palestine and Israel has eased the instability of the geopolitical situation, leading to a decline in international oil prices. This is the root cause of weakening the cost of the chemical industry chain upstream. The PTA and ethylene glycol markets, which are direct raw materials for polyester bottle chips, have also shown weak performance. On October 10th, the spot negotiation price of PTA in East China fell to 4485 yuan/ton. The collective weakening of upstream raw materials has resulted in the loss of important cost support for polyester bottle chips.
Adequate supply but weak demand
Despite the downward trend in prices, the market supply is relatively sufficient. The overall operating rate of the industry remains at a level of 73.37% to 78.62%, which means that the factory’s output has not significantly decreased and the market’s spot supply is relatively sufficient. Insufficient demand follow-up: Downstream end users, such as those in the soft drink packaging industry, generally adopt a wait-and-see attitude, with procurement strategies mainly focused on cautious follow-up according to demand, lacking enthusiasm for large-scale stocking. The sluggish peak season of “golden September and silver October” has led to an imbalance between supply and demand, suppressing prices.
Overall, Shengyi Society believes that there is currently no significant positive trend in supply and demand, and the price of PET spot market may adjust narrowly with the cost side in the short term. The expected price may fluctuate within the range of 5680-5850 yuan/ton.

After the National Day holiday, the acrylic acid market did not show any weakness, but instead emerged with a strong trend of both quantity and price rising. The core feature of the market, the reduction of low prices in the market, is not only a phenomenon, but also a subtle concentration of supply and demand patterns.
Market situation: Strong start, shift focus upwards
As of October 10, 2025, the domestic acrylic acid market has made a strong start. The benchmark price of acrylic acid in Shengyi Society is 6983.33 yuan/ton, an increase of 4.23% compared to the beginning of this month (6700.00 yuan/ton). This increase is the result of the resonance of three factors: supply, cost, and mentality.
1. Supply side:
Active reduction in operating rate: Data shows that on October 9th, the average capacity utilization rate of the domestic acrylic acid industry dropped to 76.44%, a decrease of 1.45 percentage points compared to the previous month. This is not accidental. Some factories have reduced their inventory or stopped for maintenance before the holiday due to considerations of inventory and costs, resulting in a significant tightening of spot supply after the holiday.
Healthy inventory structure: Before the holiday, downstream and traders are cautious in stocking up, and social inventory is not high. After the holiday, facing the current situation of tight supply, the inventory pressure of channels and factories is generally not high, providing a solid foundation for sellers to raise prices.
2. Cost side:
As of October 10th, the benchmark price of propylene in Shengyi Society was 6588.25 yuan/ton, an increase of 0.69% compared to the beginning of this month (6543.25 yuan/ton). Still at a high level. Greatly enhanced the manufacturer’s determination to raise prices. They are no longer willing to engage in price wars, but instead unify market prices by reducing or canceling low-priced offers, which is the fundamental reason for the “reduction of low prices in the market”.
3. Demand side:
Replenishment of rigid demand: downstream industries (such as SAP, resin, lotion, etc.) have not seen explosive growth, but their rigid demand is still stable. There is a necessary need to replenish inventory after the holiday, and this’ hard demand ‘is sufficient to digest the current tight spot resources.
Market mentality shift: The signals of supply tightening and cost support are clearly transmitted to the market, and the mentality of both buyers and sellers changes. The seller has shifted from “actively shipping” to “reluctant to sell and maintain prices”, while the buyer has shifted from “watching and suppressing prices” to “receiving goods on demand” due to concerns about continued price increases or the disappearance of low-priced sources. This change in mentality has further accelerated the clearance of low-priced sources in the market and promoted the overall shift of the delivery center.
Summary: The current “strong operation” of the acrylic acid market is a phased victory under weak reality and strong cost/supply expectations. It more reflects the bottoming out effect of supply side contraction on prices when profits are extremely thin. Traders need to closely monitor the trend of upstream propylene prices, the operating plans of major factories, and the substantial order situation downstream, which will be key signals for determining the next direction of the market.

According to the Commodity Market Analysis System of Shengyi Society, the formic acid market has recently shown a weak consolidation pattern in a state of weak supply-demand balance. As of October 9th, the benchmark price of formic acid in Shengyi Society was 2933 yuan/ton, down 3.3% from before the holiday, down 8.9% month on month, and up 5.71% year-on-year.
Inventory release
On September 25th, manufacturers released reserved inventory and initiated a price adjustment mechanism, effectively reducing enterprise inventory from high levels to a median level of 55% -60%. Top enterprises such as Luxi Chemical maintain a low inventory strategy, while small and medium-sized enterprises face significant inventory pressure due to a high proportion of raw material purchases.
Weak performance on the demand side
The pre holiday market is in a stage of price adjustment, and some downstream enterprises have adopted moderate procurement strategies due to pre holiday stocking demand and price expectations. However, overall, the demand in the terminal market is still insufficient.
There is support for the price of raw material methanol
After the National Day holiday, the methanol market will enter a critical stage of upstream enterprises destocking and downstream enterprises restocking simultaneously. Due to the high operation of coal prices and the rise in natural gas costs, the downward space for methanol prices is limited, which will provide certain support for the cost of formic acid.
The formic acid data analyst from Shengyi Society believes that the current formic acid price has no significant upward momentum in terms of cost support and weak supply-demand balance, and is expected to maintain a weak and volatile trend.

According to the Commodity Market Analysis System of Shengyi Society, as of September 30th, the average production price of ethyl acetate was 5390.00 yuan/ton, an increase of 26.67 yuan/ton compared to the beginning of the month price of 5363.33 yuan/ton, with an overall increase of 0.50%. The raw material market is relatively strong, with good cost support, but downstream demand is poor, supply side inventory pressure is high, market mentality is playing games, and the price of ethyl acetate is fluctuating and consolidating.
Market analysis: This month, the ethyl acetate market has been fluctuating. At the beginning of the month, the price of raw materials increased, and the cost led to an increase in the price of ethyl acetate; The subsequent demand side performance is weak, downstream procurement follows up on demand, enterprise inventory accumulates, and the price of ethyl acetate is weakly lowered; In the second half of the month, with the continuous strengthening of raw material prices and an increase in pre holiday inquiries, the quotation of ethyl acetate manufacturers followed the rise of raw materials. However, due to the lack of improvement in demand, the overall price increase during the month was limited.
According to the Business Society Acetic Acid Commodity Market Analysis System, as of September 30th, the price was 2640.00 yuan/ton, an increase of 8.64% compared to the acetic acid price of 2430.00 yuan/ton at the beginning of the month. The price trend of acetic acid continues to rise, with strong upward momentum for ethyl acetate. Downstream buyers actively entered the market before and after the holiday, and the supply side acetic acid inventory continued to decline. The market mentality is strong, and the price of acetic acid has risen strongly.
Looking at the future, the utilization rate of ethyl acetate production capacity has increased recently, leading to significant inventory pressure on the supply side. Downstream pre holiday purchasing sentiment is average, and market transactions are limited. The strong supply and weak demand situation in the market continues, but the support for raw material prices is strong. At the same time, downstream replenishment expectations will improve after the holiday. It is expected that the ethyl acetate market will rise slightly in October, and specific attention will be paid to changes in supplier equipment and downstream follow-up.

On September 30th, the average market price in East China was 278040 yuan/ton, an increase of 2.4% compared to the previous trading day. The mainstream price range for 1 # tin ingots in the domestic spot tin market is 277500-279000 yuan/ton, with an average price of 278040 yuan/ton, an increase of 5400 yuan/ton from the previous trading day.
Shanghai tin rose sharply in night trading, with the main contract price approaching a 4% increase at one point, breaking the highest point in over 5 months. However, the subsequent increase saw a slight correction, and during today’s white trading phase, the price further declined. Eventually, the main contract closed with a 0.94% increase, closing at 275070 yuan/ton.
On the news front, Indonesian President Prabowo announced that 1000 illegal mines in Bangka Belitung province have been closed. Triggering market concerns about the supply side.
The price of Shanghai tin futures is at a high level and maintaining a consolidation trend, and the basis discount between near month contracts and far month contracts has further expanded; In the second trading session, its increase narrowed slightly. As prices continue to rise, smelters choose to hold on and wait, unwilling to ship easily, which limits market transactions to a certain extent. In terms of the spot market, the recent spot procurement situation has been relatively stable, and downstream enterprises have basically completed pre holiday stocking. With the significant increase in the price of Shanghai tin futures, market activity has significantly decreased and gradually returned to a flat state. It is understood that although there are some inquiries in the market, actual transactions are extremely rare. Overall, the demand for tin in downstream industries still needs further improvement. However, many market participants are skeptical about whether market prices can rise in sync with consumer demand after the holiday.
In terms of follow-up, the premium for October is around 100 to 200 yuan/ton, while the premium for Yunzitou is around 200 to 500 yuan/ton, and the premium for Yunxi is around 9500 to 700 yuan/ton