1、 Price trend

According to the Commodity Market Analysis System of Shengyi Society, the overall price of bromine has risen this month. The average market price at the beginning of the month was 33200 yuan/ton, and the average market price over the weekend was 36100 yuan/ton, with a price increase of 8.73% and a year-on-year increase of 64.84%. On December 30th, the Business Society Bromine Index was 125.61, unchanged from yesterday, a decrease of 48.77% from the highest point of 245.18 points (2021-10-27) during the cycle, and an increase of 113.19% from the lowest point of 58.92 points on October 29th, 2014. (Note: The cycle refers to the period from September 1, 2011 to present)
2、 Market analysis
This week, the price of bromine in Shandong region remained firm. The ex factory price of spot goods refers to 35500-36500 yuan/ton, and the current mainstream transaction price is 36000 yuan/ton. Due to weather and policy reasons, domestic bromine enterprises still have tight inventory and insufficient industry operating rates, but downstream enterprises have average purchasing enthusiasm. In terms of raw materials, domestic sulfur prices have been rising, with an average market price of 3867.67 yuan/ton at the beginning of the month and 3661 yuan/ton at the end of the month. The price has decreased by 5.34% and increased by 116.5% compared to the same period last year. Downstream demand is still acceptable.
Prediction: Bromine prices are expected to be strong this month, while upstream sulfur prices are expected to be weak this month. Bromine supply is tight in the near future, but downstream purchases are mostly based on demand, continuing the trend of rigid procurement. The overall market trading atmosphere is weak. It is expected that bromine will continue to consolidate and operate in the later period, depending on downstream market demand.

According to the commodity analysis system of Shengyi Society, the market for locally refined petroleum coke has significantly declined this week. As of December 26th, the price of locally refined petroleum coke in the Shandong market was 2540.75 yuan/ton, an increase of 3.99% from 2443.25 yuan/ton on December 22nd.

This week, the international crude oil market has risen, mainly due to the continued tense atmosphere of the US Venezuela situation, as well as the increasing instability of the Russia Ukraine situation. Concerns about potential supply risks are difficult to dispel, and international oil prices have risen.
This week, the overall market for refined petroleum coke has risen, with average shipments from refineries. Refinery petroleum coke prices have fluctuated, and some refineries have adjusted their indicators, resulting in significant changes in coke prices with the indicators; Downstream procurement is mainly based on demand, with limited support for the petroleum coke market. This week, there were many ships in the port, with high sulfur sponge coke being the most common. The shipping speed at the port was slower, and the inventory of petroleum coke at the port increased slightly.
This week, the market for medium and high sulfur calcined coke saw a slight increase, mainly due to the rise in upstream petroleum coke prices. Downstream procurement remained cautious, and companies were cautious about new orders. The price of medium and high sulfur calcined coke remained stable.
Market forecast: Currently, the transaction volume of petroleum coke in the local refining industry is average, and downstream aluminum carbon enterprises are operating well overall. The procurement of petroleum coke remains stable, and the demand for pre baked anodes is relatively stable. It is expected that petroleum coke will be consolidated in a narrow range in the near future.

The market price of epichlorohydrin has risen this week. According to the monitoring and analysis system of Shengyi Society, as of December 12th, the benchmark price of Shengyi Society’s epichlorohydrin was 11600 yuan/ton, an increase of 3.57% compared to the beginning of this month.
Price influencing factors:

Raw material side: This week, the price of raw material propylene is temporarily stable, while the price of glycerol continues to decline. The cost support of raw materials has weakened. Against the backdrop of early maintenance by production enterprises and overall inventory reduction in the industry, production enterprises are actively willing to raise prices. On December 10th, the market price in Jiangsu rose to around 11600 yuan/ton, an increase of 3.1% from December 4th. According to the market analysis system of Shengyi Society, as of December 12th, the benchmark price of propylene in Shengyi Society was 6220.75 yuan/ton, an increase of 0.65% compared to the beginning of this month (6180.75 yuan/ton).
Demand side: The downstream epoxy resin market has weak demand, with a cold trading atmosphere and a focus on small orders for essential needs. The willingness to accept high priced epichlorohydrin is limited, resulting in limited market trading volume.
Market forecast: Business Society’s epoxy chloropropane analyst believes that the cost side support for epoxy chloropropane will weaken, downstream demand will be weak, market trading atmosphere will be cold, epoxy chloropropane manufacturers’ mentality will be bearish, trading atmosphere will be cold, and small orders for first-time purchases will be the main focus. It is expected that the epoxy chloropropane market price will mainly consolidate in the later stage, and more attention still needs to be paid to changes in raw material prices and market supply and demand.

The price of isooctanol has risen significantly this week

According to the Commodity Market Analysis System of Shengyi Society, as of December 5th, the price of isooctanol was 7066.67 yuan/ton, a significant increase of 6.27% compared to the price of 6650 yuan/ton on December 1st. Some enterprises have undergone maintenance and repair of their isooctanol equipment, resulting in a decrease in the operating load of isooctanol facilities. The operating rate of isooctanol has dropped to 70%, and the supply of isooctanol is tight; The price of propylene is consolidating strongly, and the cost support of isooctanol still exists; The price of plasticizers has risen significantly, and the downstream demand for isooctanol has increased support; This week, the supply of isooctanol decreased, coupled with increased downstream support, and the upward support for isooctanol increased, resulting in a significant increase in isooctanol prices.
The production of isooctanol manufacturers has decreased
This week, the production of isooctanol manufacturers has slightly declined, with a domestic isooctanol production rate of 74%, a decrease of nearly 10% from the end of November. The domestic weekly production of isooctanol is 60000 tons, a decrease of 4000 tons from last week. The production of isooctanol has decreased, the supply of isooctanol has decreased, and the upward momentum of isooctanol has increased.
The cost of raw material propylene has risen
According to the Commodity Market Analysis System of Shengyi Society, as of December 5th, the price of propylene was 6188.25 yuan/ton, a fluctuating increase of 0.53% compared to the price of 6155.75 yuan/ton on December 1st. This week, the price of propylene has been consolidating strongly, and the support for raw material prices still exists. The cost of isooctanol has risen, and the support for the price increase of isooctanol has increased.
Downstream plasticizer DOP prices fluctuate and rise
According to the Commodity Market Analysis System of Shengyi Society, as of December 5th, the DOP price was 7209.16 yuan/ton, a fluctuating increase of 2.12% compared to the DOP price of 7059.16 yuan/ton on December 1st. The cost of DOP has increased, the operating load of plasticizer DOP enterprises has decreased, the operating rate has dropped to 64%, DOP production has decreased, the demand for isooctanol has weakened, and the support for the price increase of isooctanol has weakened.
Future expectations
Analysts believe that in terms of cost, the price of raw material propylene is strongly consolidating, and the upward momentum of isooctanol still exists. In terms of supply, the operating rate of isooctanol enterprises has decreased, and the supply of isooctanol has decreased; In terms of demand, DOP enterprises have experienced a slight decrease in production, resulting in a decrease in DOP output and weakened support for isooctanol demand. In the future, the cost support of isooctanol still exists, coupled with reduced supply and limited demand support, the downward pressure on isooctanol has weakened, and the upward support still exists. It is expected that the price of isooctanol will stabilize strongly in the future.

According to the Commodity Market Analysis System of Shengyi Society, as of December 2, 2025, the reference price of n-butanol in Shandong Province, China is 5200 yuan/ton. Compared with November 28 (reference price of n-butanol is 5150 yuan/ton), the price has increased by 50 yuan/ton, an increase of 0.97%.

At the beginning of December, the n-butanol market in Shandong experienced a narrow upward trend
From the commodity market analysis system of Shengyi Society, it can be seen that in early December, the overall n-butanol market in Shandong, China showed an upward trend. Some n-butanol factories and suppliers in Shandong increased their n-butanol shipment prices by about 50 yuan/ton. The overall focus of market negotiations has slightly shifted upwards. As of December 2nd, the reference price for n-butanol in the domestic Shandong region is around 5200-5250 yuan/ton.
Analysis of Market Factors
On the supply side: As we enter December, the overall supply pressure of n-butanol in Shandong has eased, the overall operating load of n-butanol has decreased, factory inventory has decreased, and the supply side has provided stronger support for the n-butanol market.
On the demand side: Downstream purchases of n-butanol at low prices have increased overall inquiry enthusiasm, improved trading atmosphere, and boosted demand transmission to some extent.
Future forecast
At present, the overall n-butanol market in Shandong is operating strongly, with a good trading atmosphere and a positive attitude among industry players. The n-butanol data analyst from Shengyi Society predicts that in the short term, the n-butanol market in Shandong will continue to operate steadily with a moderate to strong trend. Specific changes in supply and demand news need to be closely monitored.

In November, domestic liquid ammonia prices rose significantly. According to the Commodity Market Analysis System of Shengyi Society, the monthly increase in liquid ammonia prices in Shandong region was 12.93%. The main reason is that, against the backdrop of stable downstream demand, many facilities have undergone maintenance, resulting in a decrease in operating rates and tight supply performance. As of the end of the month, the mainstream price of liquid ammonia in Shandong region is between 2450-2650 yuan/ton.

In terms of supply, in the first half of the year, due to the impact of environmental inspections on some products in the north, the production output of manufacturers decreased, and combined with temporary troubleshooting of some devices, the supply of ammonia in the north decreased. The supply pressure in Shandong, Hebei, Anhui, and the two lakes regions is not high, and the price increase is significant. The main reason for the repeated increase in enterprise quotations. In the middle of the month, the market entered a period of volatile adjustment, and with the end of environmental inspections, prices slightly fell back. In the latter half of the year, the market returned to the fundamental supply-demand balance, and the market partially stabilized. Prices in Shandong region slightly rebounded, but the increase was not significant.
From the demand side, downstream demand has significantly improved, agricultural demand has improved, and export volume has increased. Among them, the operating rate of compound fertilizers has increased, and the demand for urea has increased significantly. Urea has fluctuated and risen throughout November, with a growth rate of 3.5%; In addition, the domestic industry urgently needs to follow up, and coupled with the decrease in inventory caused by the early consumption of ammonia plants, manufacturers have shown a clear willingness to raise prices, which has supported ammonia prices.
Market forecast:
Business analysts believe that the rise of liquid ammonia this month is mainly driven by favorable conditions on the supply side. Although there has been improvement on the demand side, the increase is not significant. It is expected to enter December, and the resumption of maintenance equipment in the north is expected. Supply may be tight or improve, which will to some extent dilute the positive news of the increase in compound fertilizer production. Overall, it is expected that the high price of liquid ammonia will cool down and the price will return to the range of fluctuations.

price trend

According to the bulk ranking data from Shengyi Society, the domestic PC market was mainly in a state of consolidation and operation at the end of November. The spot prices of most brands are fluctuating. As of November 25th, the mixed benchmark price of Business Society PC is around 13766.67 yuan/ton, with a price increase or decrease of -2.82% compared to early November.
Root cause analysis
On the supply side, the load of domestic PC aggregation enterprises rebounded after being reduced in November. The industry’s operating rate has increased, with an average weekly output of nearly 65000 tons. Next week, the supply of genuine materials is expected to recover, and there is a relaxation of supply expectations. However, after preliminary digestion, the inventory is relatively controllable in terms of position, and the pressure of on-site production and sales is still acceptable. Overall, the change rate of PC support from the PC supply side has basically remained flat.
In terms of raw materials, the bisphenol A market fell in the first half of November and recovered in the second half. The price range of upstream phenol and acetone is weakly fluctuating, which is difficult to say for the bisphenol A market. However, after digestion in the first half of the month, the inventory pressure of bisphenol A factories eased, and spot prices fell to a low level. Enterprises and businesses increased their price raising operations, and the market rebounded in the latter half of the year after gaining bottoming power. On the other hand, there has been no improvement in the consumer side of bisphenol A, and the recent changes in the focus of actual orders are limited. It is expected that the price of bisphenol A in the future may remain stable, and the support for PC costs is average.
On the demand side: The load position of downstream factories is still not ideal, and inventory is kept buying at low prices, with weak demand levels. Customs data shows that the export market has slightly decreased at a low level, and PC terminal enterprises have conservative production schedules. Merchants within the range tend to follow the market trend and adopt a cautious and wait-and-see attitude. After meeting the demand for filling vacancies in the early stage, the market trading atmosphere returned to calm, and the speed of goods circulation slowed down again. Overall, the demand side provides moderate support for PC spot prices.
Future forecast
Domestic PC market price consolidation in November. The upstream bisphenol A market recovered after a decline, and the cost value eased the drag on PC. The load of domestic PC aggregation plants is stable with small fluctuations, and there are loose expectations for the future market. The market trading situation remains weak, with long and short positions in the market. It is expected that the PC market will remain stagnant and consolidate in the short term.

The price of boric acid has been weakly stable recently. According to the Commodity Market Analysis System of Shengyi Society, as of November 27th, the average price of boric acid in the domestic market was 8300 yuan/ton. At present, the quotation range of domestic boric acid traders is between 7700-8500 yuan/ton (the actual transaction price of different brands, specifications, and products is mainly negotiated), and the mainstream price is between 8000-8100 yuan/ton according to the shipment volume.

In terms of overseas import sources, the current external quotation for import sources is concentrated at 8400-9700 yuan/ton (the actual transaction price of different brands, specifications, and products is mainly negotiated). According to the Commodity Market Analysis System of Shengyi Society, the average market price of imported boric acid is 9066.67 yuan/ton, an increase of 1.4% compared to the market average price of 8941.67 yuan/ton in early November
The price of boric acid has rebounded from a low level in April 2025 and is currently operating in a high volatility range. If there is no special news, it is expected to mainly fluctuate sideways in the short term.

This week, the phthalic anhydride market fluctuated and fell

According to the Commodity Market Analysis System of Shengyi Society, as of November 24th, the price of phthalic anhydride in neighboring countries was 5800 yuan/ton, a fluctuation of 1.58% compared to the price of 5893.33 yuan/ton on November 14th. Phthalic anhydride continues to decline, with prices fluctuating and falling. Phthalic anhydride prices are temporarily stable, costs are stabilizing, and the operating rate of phthalic anhydride enterprises has slightly increased. Phthalic anhydride supply is sufficient; The operating load of downstream DOP enterprises has slightly increased, and the demand for phthalic anhydride still remains supported. Supported by the demand for cost reduction, the price of phthalic anhydride fluctuated and fell this week.
The cost of phthalic anhydride is stabilizing
On November 24th, Sinopec quoted a price of 5800 yuan/ton for ortho benzene, which stabilized from the price of 5800 yuan/ton on November 14th. The price of ortho benzene is temporarily stable, while the cost of phthalic anhydride is stabilizing. The operating load of phthalic anhydride equipment has slightly increased, and the supply of phthalic anhydride is sufficient. The supply cost is stabilizing, but there is still downward pressure on phthalic anhydride.
Demand side: DOP prices rebound and rise
According to the Commodity Market Analysis System of Shengyi Society, as of November 24th, the DOP price was 6967.50 yuan/ton, which rebounded and increased by 1.22% compared to the DOP price of 6883.34 yuan/ton on November 14th. The cost of DOP has increased, DOP prices have risen, and the operating load of plasticizer DOP enterprises has slightly increased this week. DOP production has increased, and the demand for phthalic anhydride still supports it. The downward pressure on phthalic anhydride has weakened.
Market outlook
According to the data analyst of Shengyi Society’s phthalic anhydride products, in terms of demand, the DOP equipment load of plasticizer enterprises has slightly increased, the production of plasticizers has increased, and the demand support for phthalic anhydride still exists; In terms of cost, the price of ortho xylene is temporarily stable, the price of raw materials is stabilizing, and the cost of phthalic anhydride is temporarily stable. In the future, the cost of phthalic anhydride is temporarily stable, and the demand for phthalic anhydride is weak due to the increase in production. It is expected that the price of phthalic anhydride will remain weak and stabilize in the future.

According to the Commodity Market Analysis System of Shengyi Society, from November 17th to 21st, the domestic ethanol price was adjusted to 5289 yuan/ton, a month on month decrease of 3.74% and a year-on-year decrease of 4.18%. The domestic ethanol market has rebounded, with slight regional differences. The raw material corn market is rising, cost support is increasing, supply in some areas is decreasing, there are not many spot goods, and factory quotations are rising. The increase in downstream production of ethyl acetate in some regions has led to an increase in demand for ethanol, which is favorable for the ethanol market.

On the cost side, corn prices have slightly increased, and ethanol factories urgently need to purchase. The favorable factors for ethanol cost have weakened.
On the supply side, the Northeast region has shown outstanding performance, with an overall operating rate of 92.43%, significantly higher than the national level. Specifically, major large enterprises in Heilongjiang continue to operate at overload, while other factories in the region have also maintained full production capacity, jointly driving up the overall operating load in Northeast China. Several previously suspended enterprises have recently resumed production, and the supply of ethanol is affected by unfavorable factors.
On the demand side, the loss of equipment is greater than the recovery, and the utilization rate of ethyl acetate production capacity has slightly decreased. Negative factors affecting ethanol demand.
Market forecast, overall. The ethanol analyst from Shengyi Society predicts that the short-term ethanol market trend will mainly focus on consolidation.