Global Polystyrene Market Size, Share, Trends to 2033

The global polystyrene market is projected to grow from USD 44.6 billion in 2025 to USD 61.1 billion by 2033, registering a CAGR of 4.2% during the forecast period. Polystyrene, a versatile thermoplastic polymer, is widely used across industries due to its light weight, ease of processing, and excellent insulation properties. The material’s adaptability allows it to serve a range of applications, from packaging and insulation to consumer goods and electronics. Expanded Polystyrene (EPS) leads the market in volume share due to its strong presence in construction and insulation projects, while High Impact Polystyrene (HIPS) and General Purpose Polystyrene (GPPS) maintain steady demand in packaging and consumer product manufacturing.