Polypropylene and High Impact Polystyrene Market Size & Share, By Application (Packaging, Automotive, Consumer Goods, Construction, Electrical & Electronics), End-Use Industry (Food & Beverage, Healthcare, Personal Care, Industrial, Transportation), Product Type (Homo-Polypropylene, Co-Polypropylene, High-Impact Polystyrene, General-Purpose Polystyrene), Molecular Weight (High Molecular Weight (>100,000 g/mol), Medium Molecular Weight (30,000-70,000 g/mol), Low Molecular Weight (30,000 g/mol)), Additives - Growth Trends, Regional Insights (U.S., Japan, South Korea, UK, Germany), Competitive Positioning, Global Forecast Report 2025-2034