nLIGHT Corporate Overview

Supplemental Information | Key Revenue Metrics nLight, Inc. 2018 2019 2020 (in thousands, except per share data) Q1 Q2 Q3 Q4 Totals Q1 Q2 Q3 Q4 Totals Q1 Q2 Q3 Q4 Totals Q1 Q2 2021 Q3 2022 Q4 Totals Q1 Revenues by end market Industrial $ 19,146 $ 25,251 $ 20,890 $ Microfabrication 15,619 19,497 19,922 17,476 $ 19,071 82,762 $ 74,109 18,124 $ 20,920 $ 18,977 $ 18,647 $ 76,669 $ 14,533 18,094 13,280 11,246 57,152 15,990 $ 10,419 22,630 $ 21,880 $ 14,300 14,052 23,978 $ 12,878 84,478 $ 51,649 21,400 $ 15,215 24,907 $ 20,274 26,737 $ 21,751 $ 94,795 $ 23,996 17,695 17,228 70,412 17,319 Aerospace and defense Total revenues 7,703 6,957 10,213 42,467 51,705 51,025 9,615 46,162 34,488 9,204 191,359 41,861 9,034 48.048 11,556 13,003 42,798 16,806 15,208 25,800 28,848 86,662 24,730 23,932 27,803 28,474 104,939 23,144 43,814 42,896 176,619 43,215 52,138 61,732 65,704 222,789 61,345 69,113 72,235 67,453 270,146 64,459 Industrial as % of total 45% 49 % 41% 38 % 43 % 43 % 44 % 43% 43 % 43 % 37 % 43 % 35% 36% 38 % 35 % 36% 37% 32% 35% 39% Microfabrication as % of total 37 % 38 % 39% 41% 39 % 35% 38 % 30% 26% 32 % 24 % 27% 23 % 20% 23% 25% 29 % 25% 26% 26 % 28 % Aerospace and defense as % of total 18% 13% 20% 21% 18 % 22% 19% 26% 30% 24% 39 % 29% 42% 44% 39% 40% 35% 38 % 42% 39% 38% Revenues by geography North America China Rest of World Total revenues $ 16,109 $ 16,101 $ 20,101 $ 18,052 $ 70,362 $ 15,697 $ 17,899 $ 16,249 $ 17,217 $ 67,062 $ 21,046 $ 15,212 23,923 16,683 14,720 70,538 13,725 18,444 17,519 14,883 64,573 12,042 20,494 $ 21,495 31,384 $ 34,700 $107,624 $ 31,134 $ 33,095 $ 37,430 $ 41,573 $ 143,232 $ 35,144 19,186 18,159 70,882 15,577 18,759 11,146 11,682 14,241 13,390 50,459 12,438 11,705 10,045 10,795 44,985 10,127 10,149 11,162 12,845 44,283 14,634 17,259 13,709 21,096 7,401 18,479 55,446 71,468 7,139 22,176 42,467 51,705 51,025 46,162 191,359 41,861 48,048 43,814 42,896 176,619 43,215 52,138 61,732 65,704 222,789 61,345 69,113 72,235 67,453 270,146 64,459 North America as % of total 38 % 31 % 39 % 39% 37 % 37% 37 % 37% 40% 38 % 49% 39 % 51 % 53% 48 % 51 % 48 % 52% 62% 53% 55 % China as % of total 36 % 46% 33 % 32% 37% 33 % 38 % 40% 35% 37% 28% 41% 31 % 28% 32% 25% 27 % 19 % 11% 21 % 11% Rest of World as % of total 26% 23% 28% 29% 26 % 30% 24 % 23 % 25% 25% 23 % 19 % 18 % 20% 20 % 24% 25% 29% 27% 26 % 34% Fiber laser revenue by power level High-power (>= 6kW) 17 % 24 % 30% 27% 24 % 24 % 35% 40 % 47 % 37% 49% 54 % 58 % 47% 52 % 54 % 51 % 50% 40 % 49 % 39% Medium-power (2kW - 5kW) 49% 44 % 43 % 51% 47 % 57 % 48 % 39 % 39% 45 % 39% 35% 34 % 39% 36% 29% 32% 23% 29% 28 % 26% Low-power (<2kW) 34 % 32% 27 % 22% 29% 19% 17 % 20% 14% 17 % 12% 11 % 8% 14% 11 % 17 % 17% 27% 31 % 23% 35% NLIGHT Note: Percentages may not total to 100 due to rounding. 39

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