March 12 News - On March 12, Hualu Hengsheng Chemical Co., Ltd. announced the latest ex-factory prices for ammonium sulfate. The price for caprolactam-grade bulk ammonium sulfate is 1,510 yuan per ton, while the price for power plant-grade ammonium sulfate is 1,405 yuan per ton. The prices have been increased by 20 yuan per ton, with actual transaction prices subject to negotiation.