Financial Metrics and Projections

SEGMENT REVENUE BY END MARKETS FOR FY23 9 MONTHS YTD (9MYTD) End Market Distribution of FY23 9 Months YTD Revenue Reported Segments 9MYTD FY22 Revenue (1) 9MYTD FY23 Revenue 9MYTD FY23/ 9M YTD 9M YTD FY23 FY22 Revenue Op Margin - GAAP / Non- GAAP Industrial Communications Electronics Instrumentation Growth Materials Segment $823M $1,062M 29% 21% / 27% 42% 6% 48% 4% Networking Segment $1,607M $1,756M 9% 13% / 18% 3% 95% 1% 2% Lasers Segment $1,146M(2) $1,137M (1)% (30)% / 16% 74% 0% 0% 26% Proforma Combined $3,576M(1) $3,955M 11% 3% / 20% 34% 44% 13% 9% (2) Coherent revenue 9 months ending 3/31/22. (1) Proforma non-GAAP revenue combines II-VI FY22 revenue 9 months ending 3/31/22 and Coherent 9 months ending 3/31/22. Not calculated in accordance with Article 11 of SEC regulation S-X. COHERENT Copyright 2023, Coherent. All rights reserved. 35 35

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