Triaryl phosphate esters (e.g. tributyl-, triphenyl phosphate) are specialty flame retardants and plasticizers used in lubricants, hydraulic fluids, and flame‑retardant plastics. In recent years, production has been modestly increasing, especially in Asia, in parallel with rising electronics and automotive demand in emerging markets. Prices have remained relatively stable but began creeping upward in 2025 due to tighter supply of phenol and phosphorus feedstocks, as well as regulatory shifts favoring non-halogenated flame retardants. Future forecasts indicate modest CAGR (~3–5 %) through 2030, with prices responding sensitively to feedstock volatility and environmental regulation tightening.