The diisononyl phthalate (DINP) market is expected to grow from US$3.3 billion in 2024 to US$4.6 billion by 2031, with a CAGR of 4.8%. This growth is driven by increasing demand in high-performance applications, particularly in construction and automotive sectors, where DINP is widely used as a plasticizer in PVC products like flooring, wall coverings, and synthetic leather. The Asia Pacific region is set to dominate, accounting for 35.9% of the market share in 2024, supported by low costs and strong production capabilities in China and India. North America is also poised for growth due to a surge in manufacturing activities. Additionally, demand for PVC-based products continues to rise, driven by the material's flexibility and durability, further propelling DINP’s market expansion.