Diantimony trioxide (Sb₂O₃), commonly known as antimony trioxide or antimony white, has established itself as an indispensable flame retardant synergist in modern industrial applications. This white crystalline powder, with its unique ability to enhance the effectiveness of halogen-based flame retardants through synergistic mechanisms, serves critical functions across plastics, electronics, automotive components, and construction materials. The global diantimony trioxide market, valued at approximately USD 960 million in 2025, is projected to reach USD 1.477 billion by 2032, growing at a compound annual growth rate (CAGR) of 6.35%​ . This comprehensive guide provides an in-depth analysis of the global buyer landscape, identifying key purchasing organizations across diverse industrial sectors that procure this…