SunSirs: Ammonium Sulfate Market Strengthened and Rose in October

Price trend

According to the commodity market analysis system of SunSirs, the average domestic ammonium sulfate market price was 1,036 RMB/ton on October 28, and the average domestic ammonium sulfate market price was 953 RMB/ton on October 1. The ammonium sulfate market price rose by 8.74% this month.

Analysis review

This month, ammonium sulfate market prices initially rose before declining, maintaining an overall stronger trend. In the first half of the month, ammonium sulfate market prices continued to rise. Caprolactam-grade operating rates declined, reducing market supply, while coking-grade operating rates remained stable. Downstream demand for replenishment increased, and the ammonium sulfate market experienced positive trading activity, with manufacturers primarily maintaining prices. Later in the month, ammonium sulfate market prices retreated from their highs. Following the continuous rise, downstream purchasing became more cautious, weakening market trading sentiment and causing ammonium sulfate to fluctuate slightly downward. As of October 28th, the mainstream ex-factory price for coking-grade ammonium sulfate in Shandong Province was around 955 RMB/ton. For caprolactam-grade ammonium sulfate, the mainstream ex-factory price in Shandong Province was around 1,010-1,040 RMB/ton.

According to the SunSirs’ data, from July 28, 2025 to October 20, 2025, domestic ammonium sulfate prices experienced both ups and downs within the cycle. In October, domestic ammonium sulfate prices rose significantly, with the largest increase of 6.64% in the week of October 13..

Market outlook

An ammonium sulfate analyst at SunSirs believes that domestic ammonium sulfate prices recently declined slightly. Due to the persistently high price of ammonium sulfate, downstream purchasing interest had weakened, and market sentiment had weakened. The domestic ammonium sulfate market is expected to be volatile and downward in the short term.

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