FY24 Q2 Financial Outlook

SEGMENT REVENUE BY END MARKETS FOR FULL YEAR FY23 End Market Distribution of Full Year FY23 Reported Segments FY22 FY23 Revenue(1) Revenue FY23/ FY22 Revenue Growth FY23 Op Margin - GAAP / Non- GAAP Industrial Communications Electronics Instrumentation Materials Segment $1,119M $1,350M 21% 12% / 26% 45% 5% 46% 4% Networking Segment $2,198M $2,341M 7% 10% / 17% 3% 95% 0% 2% Lasers Segment $1,521M(2) $1,469M (3)% (29%) / 15% 74% 0% 0% 26% Proforma Combined $4,838M (1) $5,160M 7% (1%)/19% 34% 44% 13% 9% (1) Proforma non-GAAP revenue combines II-VI FY22 and Coherent 12 months ending 6/30/22. Not calculated in accordance with Article 11 of SEC regulation S-X. (2) Coherent revenue 12 months ending 6/30/22. COHERENT Copyright 2023, Coherent. All rights reserved. 50

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