The global antimony trioxide market is expected to reach an estimated USD 2.8 billion by 2030, at a CAGR of 4.9% from 2024 to 2030, according to a Research and Markets (Lucintel) report. Antimony trioxide, a white, odourless, low-toxicity powder, is the leading synergist in halogenated flame-retardant systems and is widely used to reduce flammability in plastics, wire and cable, textiles, rubber and coatings — including PVC insulation and jacketing.

Flame retardants remain the largest application segment, where antimony trioxide enhances the efficiency of halogenated flame retardants by forming a protective char layer that prevents fire spread, while catalyst is expected to witness the fastest growth on rising PET plastics and films demand in packaging. Electrical and electronics is the largest end-use industry, driven by flame-retardant demand for polymers, wires and cables, followed by building and construction and packaging. Antimony trioxide’s role in PVC wire and cable links its demand directly to construction and infrastructure electrification cycles.

Asia-Pacific is expected to remain the largest market by value and volume and to witness the highest growth, driven by consumption in flame-retardant and catalyst applications over alternatives such as zinc hydroxystannate, zinc stannates and zinc borates; China’s Hunan Zhongnan Antimony & Tungsten Trading leads regional production. Umicore, BASF and Solvay are among key global participants, while U.S. and Russian producers expand capacity to reduce import reliance and strengthen export positions, sustaining a concentrated and supply-sensitive market tied to antimony mine output.