Cytek IPO Presentation Deck

Non-GAAP Adjusted EBITDA Reconciliation ($ in thousands) Net Income Adjustments Depreciation and amortization Provision for (benefits from) income taxes Interest Income Interest Expense Other (income) expense, net Litigation settlement Stock-based compensation Adjusted EBITDA Revenue Adjusted EBITDA Margin Note: Fiscal year ended December 31 and first quarter ended March 31 Q1'20A ($839) 105 178 (86) 37 105 ($500) $17,988 (3%) Q1'21A! FY19A FY20A $102 ($16,827) $19,411 167 50 (10) 375 615 456 $1,755 $24,272 7% 309 533 (711) 1 (252) 20,019 269 $3,341 $57,883 6% 603 (4,981) (110) 333 (994) 611 $14,873 $92,839 16% CYTEK 36 1

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