On January 16, the market price of polyester staple fiber in Fujian was 6,500–6,550 yuan/ton (short delivery). Demand expectations were bearish, coupled with weakening costs, and under the dominance of bearish factors, the price of staple fiber operated weakly. PriceSeek analyzed polyester staple fiber, with a long-short score of -1.5. The article pointed out that the spot price of polyester staple fiber in Fujian was 6,500–6,550 yuan/ton (short delivery). Bearish demand expectations led to reduced consumption, and the weakening costs further undermined price support, resulting in weak price performance under the influence of bearish factors. This exerted significant downward pressure on spot prices. In the futures market, based on data from the Zhengzhou Commodity Exchange on January 15, 2026, the main contract 2609 closed at 6,500 yuan/ton, down 70 yuan, with a trading volume of 35 lots and open interest of 149 lots, an increase of 20 lots, indicating a strengthening bearish sentiment in the market. Weak demand and expectations of declining costs are expected to prolong the weakness in futures, with short-term prices likely to remain under pressure.