On October 28th, the average market price of industrial grade anhydrous hydrogen fluoride in China was 10891 yuan/ton upon arrival at the factory, unchanged from the previous working day. At present, the mainstream to factory price of industrial grade anhydrous hydrogen fluoride in the domestic market is concentrated at 10450-11300 yuan/ton. Recently, there has been an increase in raw material prices, and the cost side is still under pressure. The market supply is scarce, and it is expected that prices will rise significantly at the beginning of next month.