According to the Commodity Market Analysis System of Shengyi Society, the domestic natural rubber spot market has fluctuated slightly higher in recent times (6.1~6.11). As of June 11th, the spot rubber market price in China’s natural rubber market was around 13758 yuan/ton, an increase of 3.38% from 13308 yuan/ton on the 1st. On the one hand, there has been some good news supporting the recent trade negotiations between China and the United States, and the macroeconomic outlook has slightly improved, which has boosted the Shanghai rubber market. On the other hand, although downstream tire production has slightly decreased, it still maintains a relatively high level, providing some essential support for rubber. Promote a slight increase in natural rubber prices recently. As of June 11th, the mainstream price for 23 years of Guangken, Baodao, and Haibao latex in Qingdao area ranges from 13700 to 14000 yuan/ton. However, judging from the prices of natural rubber raw materials and port inventory, there is still some pressure on the natural rubber market.
As of June 11th, the price of Thai glue was 56.50 baht/kg, a decrease of 7.75% from 61.25 baht/kg at the end of May. The rubber cutting operation in Thailand, an overseas rubber production area, has begun, and the prices of cup and glue have loosened slightly. In addition, the Yunnan production area in China has entered the cutting process. Although the recent increase in precipitation in Thailand and Hainan has led to a slight rebound in raw material prices in recent days, the expectation of global supply increase in the later stage remains unchanged, and the price of natural rubber raw materials is expected to continue to decline.
Recently (6.1~6.11), natural rubber inventories have slightly decreased but still remain high, which has a bearish impact on the natural rubber market. As of June 8, 2025, the total inventory of Tianjiao bonded and general trade in Qingdao area was 605500 tons, a decrease of 4100 tons or 0.67% compared to the previous period.
The recent (6.1~6.11) slight decline in downstream tire production has provided essential support for the natural rubber market. As of June 8th, the operating load of semi steel tires in domestic tire enterprises is around 7.3%; The operating load of all steel tires in tire enterprises in Shandong region is about 6.3%. As of the week of June 8th, domestic tire companies had 42 days of finished steel tire inventory, which remained unchanged on a week on week basis; The inventory of semi-finished steel tires remained unchanged on a week on week basis for 46 days.
Market forecast: As domestic and international raw material prices stabilize at high levels and expectations continue to decline in the later stage, downstream production will slightly decrease, weakening support for natural rubber. In addition, the inventory of Tianjiao Port is still at a high level; Overall, it is expected that the natural rubber market will consolidate weakly in the later stage.

Last week (June 2-8, 2025), the upstream cost support of nylon filament was insufficient, downstream enterprises had poor procurement efforts, and the fundamentals were weak. Downstream manufacturers held onto rigid demand procurement in multiple aspects, and the mainstream focus of the nylon fiber market did not change significantly, resulting in weak and stable prices.
Nylon filament prices remain weak and stable
According to the Commodity Market Analysis System of Shengyi Society, the price of nylon filament remained weakly stable last week (June 2-8, 2025). As of June 8, 2025, DTY (premium product) of nylon filament in Jiangsu region; 70D/24F) quoted 14760 yuan/ton, unchanged from the previous week’s price; Nylon POY (premium product; 86D/24F) quoted 12300 yuan/ton, unchanged from the previous week’s price; The price of nylon FDY (premium product: 40D/12F) is reported at 15400 yuan/ton, which is the same as the previous week’s price.
The raw material market remains weak and stable
In terms of cost: Last week (June 2-8, 2025), the spot market price of caprolactam remained weak and stable, and some manufacturers in the PA6 slice market had a good transaction atmosphere, but the cost was relatively weak. As of June 8, 2025, the benchmark price of caprolactam in Shengyi Society is 9450 yuan/ton, and the price is stable. During the week, the market price of high-speed spun nylon PA6 slices slightly decreased, with a weekly drop of 0.63%, mainly due to weak cost support.
Supply and demand: During the week, some nylon filament manufacturers have lowered their operating rates, resulting in a decline in overall market supply. However, industry inventory levels continue to increase, leading to poor performance on the supply side; The demand in the end market is weak, and some downstream manufacturers have reduced production or switched production, resulting in a decrease in demand for nylon filament. It is difficult to find favorable support from the demand side.
Future forecast
Cost aspect: In terms of caprolactam, pure benzene is expected to be weak, and the supply of caprolactam may recover next month. Slice manufacturers have low enthusiasm for purchasing caprolactam, and it is expected that the caprolactam market will continue to decline next week; In terms of PA6 slicing, cost support is limited, and the supply level of PA6 slicing market may continue to improve. Downstream market demand is weak, and it is expected that the market price of nylon PA6 slicing will decline.
Supply and demand: June is a transitional period from the market to the traditional off-season, coupled with the lack of signs of improvement in terminal market demand and low purchasing enthusiasm in downstream markets. Therefore, it is expected that the demand for nylon filament market may decrease next month. If there is no significant improvement in demand, under the pressure of large inventory, some nylon filament manufacturers may have the possibility of reducing production capacity, while the industry continues to release new production capacity. Therefore, it is expected that the supply of nylon filament market will decrease next month.
Overall, both the upstream raw material caprolactam spot market and the nylon PA6 chip market are likely to decline, with a lack of cost support and difficulty in improving downstream market demand. The demand side is dragging down market trends, and under the dual negative factors, analysts from Shengyi Society predict that the short-term nylon filament market prices will continue to be weak, with a decline expected to be between 100-300 yuan/ton.

According to the Commodity Market Analysis System of Shengyi Society, the focus of the domestic PTA spot market has shifted downwards in June. As of June 6th, the average price of PTA in the East China region was 4903 yuan/ton, a decrease of 1.26% from the beginning of the month.
The geopolitical dispute continues, and OPEC+eight major oil producing countries have agreed to increase their daily oil production by 411000 barrels in July, with the increase not exceeding expectations and crude oil showing a strong trend. As of June 5th, the settlement price of the July WTI crude oil futures contract in the United States was $63.37 per barrel, and the settlement price of the August Brent crude oil futures contract was $65.34 per barrel.
However, the supply and demand margin of PTA itself has narrowed, and maintenance facilities have been restarted one after another. The utilization rate of PTA production capacity has exceeded 82%, and domestic supply continues to increase.
The negative impact of downstream polyester production reduction is gradually being realized, and the demand side is showing a sluggish performance. Affected by the off-season in the terminal textile market, factories reduced production and went on holiday during the Dragon Boat Festival, and the resumption of work after the holiday fell short of expectations, resulting in a continuous decline in weaving load. At present, the level of terminal orders is average, and consumption growth is slow.
Business analysts believe that there are many external instability factors, the international oil price trend lacks sustainability, PX spot prices are tight, and it is expected to remain strong in the short term, with cost support still acceptable. As the off-season deepens and domestic and foreign trade orders perform poorly, there is an expectation of weakened supply and demand, resulting in a continued weakness in PTA prices in the short term.

The market price of anhydrous hydrogen fluoride has fallen this week. The mainstream ex factory price including tax is about 10700-10850 yuan/ton, a decrease of about 650 yuan/ton from last month. The price of raw material fluorite has declined, and the demand for downstream refrigerants is average. The focus of negotiations in the anhydrous hydrogen fluoride market is gradually shifting downwards, and it is expected that the market will mainly operate steadily and weakly in the later stage. According to the analysis system of Shengyi Society, as of June 5th, the benchmark price of hydrofluoric acid in Shengyi Society was 11133.33 yuan/ton, a decrease of -6.31% from the beginning of this month.
Raw material side: Domestic fluorite prices have fallen this week, while sulfuric acid prices have slightly increased. The raw materials have fluctuated, with weak support on the cost side, and the focus of the anhydrous hydrogen fluoride market is mainly on the downward trend. According to the analysis system of Shengyi Society, as of June 4th, the benchmark price of Shengyi Society’s fluorite was 3418.75 yuan/ton, a decrease of -2.15% compared to the beginning of this month (3493.75 yuan/ton).
Demand side: The downstream refrigerant terminal demand is generally average, and upstream products are mainly purchased on demand. Traders tend to adopt a wait-and-see attitude, and the market still has a mentality of buying and lowering prices.
Market forecast: The price of raw material fluorite will decline, and the demand for downstream refrigerants will be average. It is expected that the market for anhydrous hydrogen fluoride will remain stable and weak in the later stage, and more attention should be paid to the news of leading enterprises and market supply and demand.

The phthalic anhydride market continued to decline in May
According to the Commodity Market Analysis System of Shengyi Society, as of May 30th, the price of phthalic anhydride in neighboring countries was 6950 yuan/ton, a fluctuating decrease of 2.80% compared to the price of 7150 yuan/ton on May 1st. During the US China tariff negotiations, the phthalic anhydride market was favorable, with a brief increase in phthalic anhydride prices. However, the demand for phthalic anhydride did not grow well, and phthalic anhydride enterprises resumed production, with the operating rate of phthalic anhydride enterprises increasing to about 70%. Downstream demand for plasticizers rebounded, and the increase in supply and demand did not meet expectations, resulting in a continuous decline in phthalic anhydride prices.
Supply side: resumption of work and increase in supply
The phthalic anhydride plant has resumed operation, and the capacity utilization rate of the domestic phthalic anhydride industry has increased to about 70%. The capacity utilization rate of the naphthalene phthalic anhydride industry has remained stable; The utilization rate of production capacity in the domestic phthalic anhydride industry has been improved, and the supply of phthalic anhydride has increased.
Demand side: DOP market hits bottom and rebounds
According to the Commodity Market Analysis System of Shengyi Society, as of May 30th, the DOP price was 8250.83 yuan/ton, a decrease followed by an increase of 1.27% compared to the DOP price of 8147.50 yuan/ton on May 1st; Compared with the DOP price of 7850 yuan/ton on May 11th, it rebounded and rose by 5.11%. In early May, DOP prices continued the downward trend of April and fluctuated downwards. Starting from mid May, with the easing of tariffs and the expected increase in demand for plasticizers, the price of plasticizers hit the bottom and rebounded. In addition, the price of raw material isooctanol first fell and then rose, the price of phthalic anhydride fluctuated and fell, the cost of plasticizers first fell and then rose, and the price of plasticizers hit the bottom and rebounded.
Future forecast
According to the data analyst of Shengyi Society’s phthalic anhydride products, on the supply side, phthalic anhydride manufacturers have increased their production, resulting in an increase in phthalic anhydride supply; In terms of demand, during the economic and trade negotiations between China and the United States, it is expected that the plasticizer market will rebound, and the demand for phthalic anhydride will increase. However, the demand recovery is not as expected, and the support for phthalic anhydride demand is insufficient. In the future, with strong supply and weak demand, it is expected that the price of phthalic anhydride will remain weak and stabilize.