According to the Zhitong Finance APP, YIDA (300721.SZ) announced that the closing price of its stock has deviated by more than 30% over three consecutive trading days (March 20, 2025, March 21, 2025, and March 24, 2025), which constitutes an abnormal fluctuation in stock trading.

The announcement stated that the company recently noticed reports in the market regarding "On March 18, 2025, LyondellBasell Industries and Covestro announced the permanent closure of their joint venture propylene oxide/styrene monomer production facility located at Maasvlakte, Port of Rotterdam, Netherlands," with a production capacity of approximately 310,000 tons per year. The company's holding subsidiary, Taixing YIDA, is set to trial production of its 150,000 tons per year propylene oxide project on November 25, 2024, through technological transformation. From the trial production operation, the quality of the propylene oxide product has improved, and the energy-saving and emission-reduction effects are significant. During the trial production period, the cost of the main raw material, propylene, experienced high price fluctuations and consolidation, while the price of propylene oxide remained at an annual low. Additionally, the demand side is relatively weak at the end of the year, and although the propylene oxide product achieved production and sales, it did not achieve profitability