The global unsaturated polyester resin market size was estimated at USD 14.75 billion in 2025 and is projected to reach USD 27.51 billion by 2033, growing at a CAGR of 8.3% from 2026 to 2033. The market is witnessing strong expansion due to increasing demand for fiber-reinforced plastics (FRP) across construction, transportation, marine, industrial, and infrastructure...