The price of ethylene glycol loosened in September. According to data from Shengyi Society, as of September 16th, the average price of domestic oil to ethylene glycol was 4458.33/ton, a decrease of 0.59% from the average price of 4485 yuan/ton on September 1st.
In terms of port ethylene glycol, the spot contract basis for port ethylene glycol on September 16, 2025 is running weakly. The intraday basis trading range for this week’s contract is+84 to+95. As of the close of trading, the contract basis price for this week is+84 to+86, the contract basis price for September is+85 to+87, and the contract basis price for October is+72 to+73. After the close of trading, for this week’s contracts, if the market price is low, buying orders will quote an external basis of+83 to+84. If the market price is high, buying orders will quote an external basis of+78, and buying orders for collective transactions will quote an external basis of+85.
The spot price of domestic coal to polyester grade ethylene glycol (loose water, tax included, self pickup) per unit is 4000-4140 yuan/ton.
In terms of external ethylene glycol, as of September 15th, recent cargo negotiations have resulted in a transaction price of around 516 US dollars per ton.
Fundamental Overview
This week, the total planned arrival volume of ethylene glycol at East China ports is 94000 tons, including 11000 tons at Ningbo port, 42000 tons at Zhangjiagang port, and 41000 tons at Taicang port. Recently, the construction of facilities in the Middle East and Singapore has rebounded, and there is an expectation of a rebound in port ethylene glycol inventory due to the recent resumption of arrivals.
As the holiday approaches, there is a strong demand for pre holiday stocking, and downstream polyester factories have low inventory replenishment needs; However, the expected production of new facilities is suppressing the price of ethylene glycol. From the perspective of overseas markets, Saudi Arabia’s 450000 tons/year facility is in operation, Singapore’s 900000 tons/year facility is shut down, and Iran’s FARSA 400000 tons/year facility has recently restarted.
Future expectations
The rebound of port inventory, coupled with the news of new equipment being put into operation, has suppressed the price of ethylene glycol; Recently, with the boost of pre holiday inventory replenishment demand, the downward space for ethylene glycol prices is expected to narrow.
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