The global trimellitic anhydride market is expected to grow from USD 624.78 million in 2026 to USD 967.38 million by 2035, registering a CAGR of 4.98%, according to Industry Research. Trimellitic anhydride (TMA) is a specialty aromatic anhydride used as a key raw material for high-temperature trimellitate plasticizers, powder coating resins and specialty polyesters.

Trimellitic anhydride serves as the feedstock for trimellitate plasticizers such as TOTM, which deliver excellent high-temperature stability, low volatility and electrical performance for PVC wire and cable and automotive applications, and is used in powder coating resins, alkyds and specialty polyesters. Demand is tied to the expansion of high-performance and non-phthalate plasticizers, the growth of wire and cable and automotive industries, and the shift toward low-volatility plasticizer systems. The plasticizers segment dominates TMA consumption, with Asia-Pacific the largest and fastest-growing region supported by extensive chemical and manufacturing industries in China, India and Southeast Asia.

Europe and North America sustain steady demand in premium coating and wire-and-cable applications. Continued high-performance plasticizer growth positions trimellitic anhydride as a steadily advancing feedstock for the PVC value chain.