On January 28, Hualu Hengsheng Chemical Co., Ltd. announced the latest ex-factory prices for ammonium sulfate. The price for caprolactam-grade bulk ammonium sulfate is 1,160 yuan/ton, an increase of 20 yuan/ton. The price for power plant-grade ammonium sulfate is 1,055 yuan/ton, an increase of 10 yuan/ton, with actual transaction prices subject to negotiation. PriceSeek analysis of ammonium sulfate: Bullish-Bearish Score: 1. Hualu Hengsheng has raised the ex-factory prices for ammonium sulfate, with caprolactam-grade bulk material increasing by 20 yuan/ton to 1,160 yuan/ton, and power plant-grade increasing by 10 yuan/ton to 1,055 yuan/ton. This price adjustment reflects stronger market demand or tightening supply, which is favorable for spot prices of ammonium sulfate. The moderate increase indicates improved market confidence but does not reach a significant bullish level. It is expected that spot prices will remain stable with a slight upward trend in the short term.