Investor Presentaiton

II-VI Segment Revenue by End Markets for Q4FY21 QTD End Market Distribution of Q4FY21 QTD Revenue Reported Segments Q4FY20 Revenue Q4FY21 Revenue Q4FY21 Op Margin - GAAP / Non-GAAP Q4FY21/ Q4FY20 Revenue Growth Industrial (Automotive) Communica- tions Aerospace & Defense Semi Cap Life Science, Consumer, Other Photonic Solutions $517M $550M 11% / 16% 6% 3% 94% 0% 1% 2% Compound 32% $229M $258M 18% / 24% 13% 11% 21% 12% 22% Semiconductors (2%) 12% II-VI Consolidated $746M $808M 12% / 18% 8% 67% 7% 4% 9% (1%) IIVI Copyright 2021, II-VI Incorporated. All rights reserved. Page 32

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