Cytek Investor Presentation Deck

Note: Fiscal Quarter Non-GAAP Adjusted GP Reconciliation ($ in thousands) Non-GAAP Adjusted Gross Profit Reconciliation ($ in thousands) GAAP Gross Profit Adjustments Amortization of Acquisition-Related Intangible Ass Stock-Based Compensation Expense Non-GAAP gross profit Revenue Non-GAAP gross profit % FY20A 51,710 FY21A 79,144 0 237 232 1,508 51,942 I 80,888 92,839 127,950 56% 63% 1Q2020 2Q2020 8,375 8,270 0 29 8,404 17,988 47% 0 40 8,310 19,137 43% 3Q2020 4Q2020 1Q2021 2Q2021 3Q2021 4Q2021 1Q2022 15,615 19,450 14,487 19,745 21,276 23,636 20,177 0 38 15,653 25,095 62% 0 125 19,574 30,619 64% 0 0 0 112 120 559 14,599 19,864 21,835 24,272 30,408 34,376 65% 64% 60% 237 717 24,589 38,893 63% 2Q2022 3Q2022 24,558 26,861 57 64 708 749 20,941 25,372 35,064 60% 64 759 27,685 40,159 40,477 63% 68% CYTEK TRANSCEND THE CONVENTIONAL 19

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