The History of China’s Kieserite Fertilizer Industry
Before delving the history of China’s Kieserite magnesium fertilizer industry, let me first explain the origin of the term “Kieserite.” The Origin of “Kieserite” Saxony-Anhalt, Germany—the site of kieserite’s discovery—possesses abundant mineral resources, particularly potash and rock salt. The extraction of these mineral salts has made significant contributions to Germany and earned it international renown. This is why the mineral salt giant K+S Group originated in Germany. The Development History of Kieserite and Magnesium Sulfate Fertilizer in China The development of mineral salts relies heavily on natural mineral resources. Fortunately, Liaoning Province China, also possesses a mineral belt rich in magnesite deposits. Over 130 years after the discovery of Kieserite, by the 1990s, China’s magnesite processing industry in Liaoning had matured significantly. Particularly in the Dashiqiao area of Yingkou, Liaoning—where magnesite deposits are exceptionally abundant—enterprises producing magnesia, magnesite ingots, magnesia bricks, and refractory materials proliferated. However, intense industry competition severely impacted corporate profitability. This situation in Liaoning’s magnesium mining hinterland serves as a microcosm of the broader Chinese magnesium processing industry’s urgent need for new development pathways. Moreover, the growing modern agricultural sector is increasingly shifting toward highly efficient, intensive production. Large-scale farms require substantial amounts of medium-element fertilizers like magnesium fertilizers to supplement crops such as oil palms, bananas, and cocoa in Southeast Asia, as well as tobacco and cocoa cultivation. and tobacco and cocoa cultivation. Pioneering Chinese sulfur-magnesium fertilizer specialists seized these market opportunities, assembling technical teams to drive innovation in the magnesite chemical industry. Starting from pilot-scale trials, they expanded to multiple production lines and R&D/manufacturing bases. Amidst China’s surging magnesium chemical industry, Rongqing Chemical continually adapts to evolving market demands. The booming cultivation of high-value fruits in modern agriculture has created significant market demand for premium water-soluble magnesium fertilizers. Rongqing Chemical has progressively expanded its production…
