Ammonium Polyphosphate (APP) TechnologyA highly flexible production process for phosphate fertilizers capable of utilizing various raw materials, including wet-process phosphoric acid, raffinate acid, liquid ammonia, or urea, to produce two product forms: solid ammonium polyphosphate for agricultural use and liquid ammonium polyphosphate. The process design fully leverages low-cost by-products as feedstock, significantly reducing production costs. This technology has a proven track record of successful export and implementation in Serbia (according to technical archives), validating the feasibility of cross-border technical cooperation. As a new generation of high-concentration, slow-release phosphate fertilizer, ammonium polyphosphate demonstrates fertilizer efficiency advantages in precision agriculture and facility agriculture scenarios that are difficult for traditional phosphate fertilizers to match. Services cover the preparation of process packages, basic and detailed design, and technical management during the commissioning phase, with a cycle of approximately 3 to 18 months.