UCT End Market Update

Industry and Customer Footprint (Q3'21) UCT REVENUE BY SEGMENT Service* 13% Non-semi 11% Foundry & Logic WFE Memory WFE 40% 36% UCT * Includes low single digit OEM service revenue UCT REVENUE BY CUSTOMER Service* 13% Non-semi 11% Other OEM 14% Applied 23% Lam 39% 10 10

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