On April 28, concentrated nitric acid plants in Anhui reported smooth shipments, while plants in Jiangsu maintained normal production. The mainstream transaction prices for 98% concentrated nitric acid in Anhui ranged from 1,300 to 1,350 yuan/ton, up by 50 yuan/ton. Chempricehub's assessment of nitric acid: Bullish/Bearish rating of 1. The article reports a spot price increase of 50 yuan/ton for concentrated nitric acid in Anhui, with mainstream transaction prices ranging from 1,300 to 1,350 yuan/ton, indicating increased market demand or stable supply with upward price movement, positive for the spot market. Score +1.0 (generally bullish) based on the significant price rise, reflecting a short-term tight supply-demand trend.