Westlake Growth & Investment Strategy

Penetrating New End-Markets Through Epoxy Epoxy at a Glance: Epoxies expand Westlake's integrated materials business into attractive high-growth innovative and sustainability oriented end-use products Applications & Products Wind Energy Aerospace Automotive Leadership Position #1 Global #2 Europe #2 North America Liquid Epoxy Resin #2 North America, Europe BPA #2 North America Other Epoxy Detail Significant global scale with 8 manufacturing sites worldwide and 5 R&D labs across 3 continents Epoxy operating rates are expected to increase over the next decade driven by increasing demand and limited capacity additions • Fast growing markets: - Composites for wind energy, aerospace and automotive Sales By: Product Epoxy Market Overview Global Industry Sales Other Construction 12% 4% Composites 8% Epoxy Resin Adhesives 7% 43% 57% 45% Coatings 24% Electrical Applications Specialized Epoxy Markets Growth Forecast Geography Coatings 3.2% Asia 23% Electrical Applications 3.6% 41% Americas Adhesives 3.4% Composites 5.8% 43 - Electrical applications including semiconductors - Adhesives across an array of markets - Coatings for food preservation and construction markets Source: IHS Markit 36% EMEA Construction Based on 2017-2021 averages Source: Roland Burger 2.6% Westlake

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