According to the Commodity Market Analysis System of Shengyi Society, the domestic PP market weakened in early September, with most brand products experiencing narrow price reductions. As of September 9th, the mainstream offer price for wire drawing by domestic producers and traders is around 7113.33 yuan/ton, a decrease of -0.93% compared to the price level at the beginning of September.
price trend
In terms of raw materials:
At the beginning of September, the geopolitical situation in Eastern Europe and the Middle East maintained a relaxed pattern, and the market expected stable crude oil supply. Meanwhile, OPEC+continues to increase production, causing international oil prices to fluctuate downward. In the first half of the year, the supply of propylene was affected by the maintenance of Haiwei, resulting in a contraction. However, due to sufficient on-site supply, the resistance to price increases is relatively high. In addition, the downstream demand is generally followed up, and the price situation is mainly stagnant. Propane has been boosted by high external prices, and the short-term bottoming force is relatively strong. Prices are temporarily stable, and the cost support for PDH manufacturing enterprises has flattened. Overall, the prices of various PP raw materials provide average cost support.
Supply side:
In early September, the operating rate of domestic PP enterprises remained high and stable. As of the time of writing, the overall load level of the domestic industry is around 80%, which is basically unchanged from the end of August, and the weekly average total output is also flat at 810000 tons. Recently, the first line of the 900000 ton new production line in Ningbo Daxie Phase II has been put into operation with 450000 tons. The trend of loose market supply is clear, which seriously limits the support of the supply side. The current on-site supply remains abundant, and inventory levels have significantly rebounded to over 830000 tons. Overall, the PP supply side has poor support for spot prices.
In terms of demand:
At the beginning of September, polypropylene was in the transition period between peak and off peak seasons, and traders had expectations for a surge in PP demand. However, the trading atmosphere in the field remained light. Merchants have started stocking up slowly, and new orders on site still tend to be mainly scattered small orders and contract deliveries. The improvement of source liquidity is limited. The median load of downstream enterprises has leveled off, and the potential willingness to build warehouses for materials in areas such as plastic weaving, construction, and agriculture is unclear. PP peak season consumption has not yet started, providing average support for the demand side.
Future forecast
The domestic PP market prices fell in early September. Fundamentally speaking, the upstream raw material market is weak, and the overall support for PP is not good. The industry load remains stable at a high level, and there is a short-term expectation of loose supply in the future. In terms of consumption, it is at the junction of peak and off peak seasons. The current seasonal speculative atmosphere in the market is constrained by industry capacity expansion and weak demand, and it is expected that PP may still need to consolidate the market in the short term.

According to the analysis of the Business Society’s market monitoring system, on September 8th, the domestic market price of silicon metal # 441 was based on 9390 yuan/ton. Compared with September 1st (market price of silicon metal # 441 was 9360 yuan/ton), the price increased by 60 yuan/ton, an increase of 0.32%. Compared with August 1st (market price of silicon metal # 441 was 9980 yuan/ton), the price decreased by 590 yuan/ton, a decrease of 6.91%.
From the commodity market analysis system of Shengyi Society, it can be seen that in recent days (9.2-9.8), the overall market situation of domestic silicon metal 441 # has been mainly organized and operated. Looking back at August, the overall domestic silicon metal market fluctuated and fell, and the focus of market negotiations shifted towards a low-level correction. Entering September, the overall consolidation and operation of the silicon metal market is the main trend, with little fluctuation in the market conditions. Some brands have made narrow adjustments, among which the domestic silicon metal # 441 market has seen a slight upward adjustment, with an increase of around 50 yuan/ton. As of September 8th, the reference market price for metal silicon 441 # in East China, Kunming, Huangpu Port, Tianjin, Sichuan, and Shanghai is around 9300-9500 yuan/ton, 9300-9400 yuan/ton, 9100-9200 yuan/ton, and 9500-9800 yuan/ton, respectively.
Fundamental situation
Supply and production situation: In August, the overall production of metallic silicon in China increased. According to data statistics, in August 2025, industrial silicon production was about 386000 tons, an increase of 14% in environmental protection and a decrease of 19% year-on-year. From January to August 2025, the cumulative production of industrial silicon was about 2.597 million tons, a decrease of 20% year-on-year. In August, the increase in industrial silicon production was mainly supported by the increase in production capacity in Xinjiang, Yunnan, and Sichuan regions. The recovery of production capacity in top enterprises in Xinjiang led to an overall increase in production, while Yunnan and market areas also saw an increase in overall production during the peak season. It is expected that the supply of metallic silicon will continue to increase narrowly in September.
On the demand side: Currently, the downstream market for metallic silicon mainly continues to focus on rigid procurement, with an overall boost in demand.
Market analysis in the future
At present, the trading atmosphere in the metal silicon market is light and mild, and the supply and demand transmission is relatively stable. The metal silicon data analyst from Shengyi Society predicts that in the short term, the domestic metal silicon market will mainly focus on consolidation and operation, and specific changes in supply and demand information need to be closely monitored.

1、 Price trend
Taking the sulfuric acid method for producing pyrite type titanium dioxide, which has a large volume of goods in the domestic market, as an example. According to data monitoring by Business Society, the domestic titanium dioxide market has shifted upwards this week. At the beginning of the week, the average price of titanium dioxide in the domestic market was 13480 yuan/ton, and the average price over the weekend was 13820 yuan/ton, with a price increase of 2.52%.
2、 Market analysis
This week, the domestic titanium dioxide market has shifted its focus upwards. At present, cost pressure still exists for titanium dioxide companies, and many are waiting to see if they can raise prices. Approaching the Golden September and Silver October, the market anticipates stocking up, and holders have no intention of continuing to sell at low prices, resulting in an increase in quoted prices. As of now, the domestic quotation for sulfuric acid based pyrite type titanium dioxide is mostly between 13200-14200 yuan/ton; The price of the titanium type is around 11700-12500 yuan/ton, and the actual transaction price is negotiable.
3、 Future forecast
Business Society’s titanium dioxide analyst believes that the focus of the domestic titanium dioxide market is shifting upwards this week. The cost of titanium dioxide enterprises is under pressure, and their quotations are firm. However, after downstream stocking up in the early stage, there is a lack of willingness to purchase in the near future, and the market is more cautious. It is expected that the titanium dioxide market will remain strong in the short term, with actual transaction prices subject to negotiation.

According to the price data from Shengyi Society, the polyester bottle chip market has been running weakly this week. As of September 5th, the average sales price of PET is 5897 yuan/ton. Decreased by 1.15% compared to the beginning of the week.
On the cost side: Crude oil prices have fallen this week, and the overall cost of polyester is weak and fluctuating. The collapse of cost support, coupled with downstream demand to maintain essential needs and replenish at low prices, has resulted in no substantial positive news on the supply and demand side, leading to an expansion of the decline in the PET market. The current situation presents a dual weak pattern of cost and demand, and the cost side has not provided strong support for the price of polyester bottle chips, which cannot drive price increases.
Supply side: Mainstream factories continue to reduce production, which provides some support for prices, but the buffering effect of supply regulation is limited, making it difficult to change the overall weak trend.
Demand side: Downstream demand is weak, with rigid procurement being the main focus. After the deep drop in prices on Thursday, some companies bought back their positions on dips, which slightly boosted trading and the overall market lacked the drive to increase volume.
Looking ahead to next week, the cost side is under pressure due to the expected poor quality of the “golden nine and silver ten” products, and the PET market price may fluctuate narrowly with the cost side in the short term. Terminals are often used and purchased on demand, and the market lacks the drive to increase volume. The actual trend still needs to pay attention to changes in external news, device changes, and demand recovery in the future. The price of bottle slices is expected to fluctuate weakly within the range of 5800-5950 yuan/ton.

1、 Price trend
According to the commodity analysis system of Shengyi Society, the price trend of soda ash has decreased this week. As of August 29th, the average market price of soda ash was 1210 yuan/ton, a decrease of 10 yuan/ton compared to the price of 1220 yuan/ton on August 25th, a decrease of 0.82%.
2、 Market analysis
The soda ash market has been weak this week. The utilization rate of soda ash production capacity decreased during the week, and the supply of soda ash weakened. Manufacturers are actively shipping; The downstream performance in terms of demand is average, with narrow fluctuations in the glass market and slow consumption of inventory by enterprises. There is insufficient support for soda ash, and some purchases are mainly seeking lower prices. The market trading atmosphere is poor, and soda ash prices are mainly weak. On August 29th, the price of light soda ash in East China was reduced by 30 yuan/ton, with a range of 1100-1400 yuan/ton; The price of light soda ash in central China remains at 1130-1300 yuan/ton.
According to the commodity analysis system of Shengyi Society, the downstream glass market has risen narrowly. From August 25th to 29th, the price of glass increased from 13.83 yuan/square meter to 13.88 yuan/square meter, an increase of 0.36%. The production line of the glass market is running smoothly, with increased inventory in enterprises and average downstream consumption. There is limited replenishment upon entering the market. As the traditional peak season approaches, some enterprises have slightly increased their quotations, and the glass price market remains weak.
Future forecast: Currently, the price of soda ash is running weakly and steadily, and the mentality of industry players is mainly wait-and-see. Downstream demand has not yet rebounded, and soda ash companies continue to have weak shipments. The fundamental supply-demand contradiction persists, and it is expected that the soda ash market will run weakly in the later stage. Specific attention should be paid to downstream follow-up situations.