The global maleic anhydride market is projected to grow from USD 1.84 billion in 2025 to USD 3.79 billion by 2035, according to a ResearchAndMarkets report, implying a 2026-2035 compound annual growth rate of about 7.62%. The study says demand is being driven primarily by unsaturated polyester resins, where maleic anhydride is a key input, along with rising use in lubricant additives, coatings and specialty chemicals. N-butane led the feedstock segment in 2025 because of cost and availability, while North America held a significant market share and Asia Pacific was identified as the faster-growing region. The report also cites raw material price volatility and environmental regulation as restraints, while highlighting bio-based production and advanced materials as opportunities.