KLA Investor Day Presentation Deck

Making the Case for Increased Foundry/Logic WFE Intensity WFE/EBITDA Ratio Provides Perspective into Spend¹ ŞM $M 40% 30% 20% 10% 0% 40,000 30,000 20,000 10,000 0 CY02 CY03 CY04 CY05 CY06 CY07 CY08 CY09 CY10 CY11 CY12 CY13 CY14 CY15 CY16 CY17 CY18 CY19 CY20 CY21 Financial Performance Remains Strong¹ ..…………….…………….…………… CY02 CY03 CY04 CY05 Revenue CAGR |||| CY06 CY07 CY08 CY09 CY10 CY11 CY12 CY13 CY14 CY15 CY16 CY17 CY18 CY19 CY20 CY21 ~65% /~35% split Nodes CY12 - CY21 CY17- CY21 Legacy Node Revenues Help Pay for Investments² Leading 14.1% 11.4% WFE - ex Memory CY02 CY03 CY04 CY05 CY06 CY07 CY08 Legacy 16.8% 20.1% CY09 CY10 CY11 OpM - ex Memory Leading Edge CY12 CY13 CY14 CY15 Legacy Nodes Sources: KLA Analysis, Gartner April 2022, Company Reports 2002-2022, FactSet June 2022 117 advanced and legacy node foundry and logic manufacturers | 2Legacy nodes definition: 6th year and greater of generated revenue CY16 CY17 CY18 CY19 CY20 CY21 40% 30% 20% 10% 0% ~50%/50% split Highlights Record revenues and profits Strong long-term industry growth drivers ■ Utilization rates rising to near 100% ▪ Increased competition ▪ Evolving supply chains KLAH Investor Day 129

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