May 19 – On May 19, Hualu Hengsheng set its ex-factory price for 85% formic acid at 2,800 RMB/ton, up by 200 RMB/ton from the previous day. According to Chempricehub's analysis of formic acid, the bullish-bearish rating stands at 1. Hualu Hengsheng's ex-factory price for 85% formic acid on May 19 was 2,800 RMB/ton, reflecting an increase of 200 RMB/ton from the prior day. The manufacturer exhibits a strong willingness to support prices, providing clear support for spot formic acid prices and creating a bullish outlook for the price trend.