Westlake Growth & Investment Strategy

Benefits of a Combined PEM & HIP Portfolio 16 More Stability in Earnings & Cashflow PEM and HIP cycles do not overlap ⚫ HIP provides significant insight in housing and construction product demand • Vertical integration lowers unit cost production and creates highly reliability operations across both segments PEM's Cashflow Profile Supports Stronger Investment in HIP HIP has more access to capital from Westlake vs. smaller & private equity- owned competition . Enables innovation and efficiency investments in HIP's operations Vertically Integrated Cross Functional Innovation Earnings Stability PEM ~ W Enhances Innovation Across Both Segments Leveraging PEM's material science and HIP's product expertise Strongly supports introduction of technically advanced products HIP Creates New Opportunities to Apply Proven M&A Skills Leveraging M&A expertise in disciplined capital deployment and successful integration Enables strategic acquisition opportunities in fragmented industry Allows opportunistic capital allocation across best opportunities across segments Leveraging M&A Discipline Greater Demand HIP Insight More Investment Opportunities Combined Segments Offer Lower Volatility and Greater Reliability to Westlake Investors and Customers Westlake

View entire presentation