nLIGHT at a Glance

Supplemental Information | Key Revenue Metrics nLight, Inc. (in thousands, except per share data) Revenues by end market Industrial Microfabrication Aerospace and defense Total revenues Q1 Q2 2018 Q3 2019 Q4 Totals Q1 Q2 Q3 Q4 Totals Q1 Q2 2020 Q3 Q4 Totals Q1 Q2 2021 Q3 2022 Q4 Totals Q1 Q2 Totals $ 19,146 $ 25,251 15,619 7,703 42,467 19,497 6,957 51,705 74,109 34,488 191,359 14,533 9.204 41,861 20,890 $ 17,476 $ 82,762 $18,124 $ 20,920 $ 18,977 $ 18,647 $ 19,922 19,071 13,280 11,246 10,213 9,615 11,556 13,003 51,025 46,162 43,814 42,896 18,094 9,034 48,048 76,669 57,152 42,798 $ 15,990 $ 22,630 $ 21,880 $ 23,978 $ 84,478 $ 21,400 $ 24,907 $ 26,737 $ 21,751 $ 94,795 $ 23,996 $ 21,899 $ 45,895 10,419 14,300 14,052 12,878 51,649 15,215 20,274 17,695 17,228 70,412 17,319 16,415 33,734 16,806 15,208 25,800 28,848 86,662 24,730 176,619 43,215 52,138 61,732 65,704 222,789 61,345 23,932 69,113 27,803 28,474 104,939 23,144 22,513 45,657 72,235 67,453 270,146 64,459 60,827 125,286 Industrial as % of total 45% 49 % 41 % 38% 43 % 43 % 44 % 43 % 43 % 43 % 37% 43 % 35 % 36% 38 % 35 % 36 % 37 % Microfabrication as % of total 37% 38 % 39% 41% 39 % 35% Aerospace and defense as % of total 18% 13% 20% 21% 18% 22% 38 % 19% 30% 26% 26% 30% 32% 24 % 24 % 39% 27 % 29% 23% 20% 23 % 25 % 29% 25% 32% 26% 35% 37% 36% 37 % 26 % 27 % 27 % 27% 42% 44% 39 % 40 % 35% 38 % 42% 39 % 36% 37% 36% Revenues by geography North America 70,362 $ 15,697 $ 17,899 $ 16,249 $ 17,217 China Rest of World Total revenues $ 16,109 $ 16,101 $ 20,101 $ 18,052 $ $ 15,212 23,923 16,683 14,720 70,538 13,725 18,444 17,519 14,883 12,042 21,495 19,186 18,159 70,882 15,577 18,759 13,709 7,401 55,446 7,139 4,672 11,811 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 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 21,096 72,235 18,479 71,468 22,176 20,473 42,649 67,453 270,146 64,459 60,827 125,286 67,062 $ 21,046 $ 20,494 $ 31,384 $ 34,700 $ 107,624 $ 31,134 $ 33,095 $ 37,430 $ 41,573 $ 143,232 $ 35,144 $ 35,682 $ 70,826 64,573 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% 59 % 57 % 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 % 8% 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 % 34% 9% 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 % 40 % 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% 19% 23% Low-power (<2kW) 34% 32% 27% 22% 29% 19% 17 % 20% 14% 17 % 12% 11 % 8% 14% 11 % 17 % 17% 27% 31% 23% 35% 41% 38 % NLIGHT Note: Percentages may not total to 100 due to rounding. 42 42

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