the global Unsaturated Polyester Resin market size was worth around USD 13.58 billion in 2024 and is predicted to grow to around USD 32.59 billion by 2035 with a compound annual growth rate (CAGR) of 8.28% from 2025 to 2035. The global unsaturated polyester resin market is driven by increasing use in fiber-reinforced plastics, growing infrastructure and industrial projects, rising renewable energy applications, and the demand for corrosion-resistant, high-performance materials.