国信证券：国际钾肥价格持续上行 磷矿石价格高位运行

Group 1 - The global agricultural market is experiencing a tight balance in potash supply and demand, with a recommendation to focus on structural investment opportunities in the agricultural chemical sector [1] - China, as the world's largest potash consumer, has an import dependency exceeding 60%, with potash imports expected to reach 12.633 million tons in 2024, a year-on-year increase of 9.1% [1] - Domestic potash port inventory has decreased by 45.45% year-on-year, amounting to 1.9111 million tons as of April 2025 [1] Group 2 - The phosphate chemical industry is heavily influenced by the price of phosphate rock, which is expected to maintain a high price level due to declining grades and increasing extraction costs [2] - The market price for 30% grade phosphate rock has remained above 900 yuan/ton for over two years, indicating a tight supply-demand balance [2] - As of April 30, 2025, the price for 30% grade phosphate rock in Hubei is 1,040 yuan/ton, while in Yunnan it is 970 yuan/ton, reflecting a 20 yuan increase from the previous month [2] Group 3 - The spring farming season is concluding, leading to a slight decrease in demand for phosphate fertilizers, with prices showing narrow fluctuations [3] - As of April 30, 2025, the reference price for monoammonium phosphate is 3,251 yuan/ton, a year-on-year increase of 14.55% [3] - The reference price for diammonium phosphate is 3,526 yuan/ton, reflecting a year-on-year decrease of 3.53% [3]