ResearchAndMarkets.com has added a Vietnam Ammonium Sulfate Import Guide 2023-2026 alongside previously reported guides covering meat and bone meal and rapeseed meal. The ammonium sulfate guide profiles major compound-fertilizer manufacturers, agricultural groups, distributors, traders and end buyers, including detailed data on the top 10 importers and accompanying Excel files. About 145 Vietnamese buyers imported ammonium sulfate worth US$199 million in 2024, up 12.0% year-on-year, while 2025 imports totaled about US$193 million. China accounted for about 80.9% of 2025 import value. Vietnam relies heavily on overseas ammonium sulfate supply because domestic capacity is limited, while agricultural use and NPK fertilizer production support demand. The earlier meat and bone meal and rapeseed meal guides reported 2025 import values of US$452 million and US$13.49 million, respectively, and cover buyer intelligence, supply sources, industry conditions and investment opportunities.