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Segment Reporting and Geographic Information (Tables) | 9 Months Ended
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Sep. 30, 2025
Segment Reporting and Geographic Information |
Schedule of sales by end-market | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended September 30, | ​ | Nine months ended September 30, | ​
​ |  | 2025 | ​ | 2024 |  | 2025 | ​ | 2024 |
​ | ​ | (in thousands) | ​
Sales by end-market | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Semiconductor | ​ | $ | 118,322 | ​ | $ | 124,143 | ​ | $ | 366,019 | ​ | $ | 354,463 | ​
Compound Semiconductor | ​ | ​ | 10,912 | ​ | ​ | 15,556 | ​ | ​ | 39,506 | ​ | ​ | 54,781 | ​
Data Storage | ​ |  | 9,971 | ​ |  | 32,750 | ​ |  | 29,030 | ​ |  | 84,727 | ​
Scientific & Other | ​ |  | 26,676 | ​ |  | 12,358 | ​ |  | 64,722 | ​ |  | 41,199 | ​
Total | ​ | $ | 165,881 | ​ | $ | 184,807 | ​ | $ | 499,277 | ​ | $ | 535,170 | ​
Sales by geographic region | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
United States | ​ | $ | 26,513 | ​ | $ | 59,207 | ​ | $ | 72,427 | ​ | $ | 129,819 | ​
EMEA(1) | ​ | ​ | 11,581 | ​ | ​ | 9,898 | ​ | ​ | 42,451 | ​ | ​ | 42,188 | ​
China | ​ | ​ | 45,650 | ​ | ​ | 54,590 | ​ | ​ | 144,032 | ​ | ​ | 184,274 | ​
Rest of APAC | ​ | ​ | 82,100 | ​ | ​ | 60,969 | ​ | ​ | 240,262 | ​ | ​ | 178,124 | ​
Rest of World | ​ |  | 37 | ​ |  | 143 | ​ |  | 105 | ​ |  | 765 | ​
Total | ​ | $ | 165,881 | ​ | $ | 184,807 | ​ | $ | 499,277 | ​ | $ | 535,170 | ​
(1) | EMEA consists of Europe, the Middle East, and Africa
Schedule of sales by geographic region | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended September 30, | ​ | Nine months ended September 30, | ​
​ |  | 2025 | ​ | 2024 |  | 2025 | ​ | 2024 |
​ | ​ | (in thousands) | ​
Sales by end-market | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Semiconductor | ​ | $ | 118,322 | ​ | $ | 124,143 | ​ | $ | 366,019 | ​ | $ | 354,463 | ​
Compound Semiconductor | ​ | ​ | 10,912 | ​ | ​ | 15,556 | ​ | ​ | 39,506 | ​ | ​ | 54,781 | ​
Data Storage | ​ |  | 9,971 | ​ |  | 32,750 | ​ |  | 29,030 | ​ |  | 84,727 | ​
Scientific & Other | ​ |  | 26,676 | ​ |  | 12,358 | ​ |  | 64,722 | ​ |  | 41,199 | ​
Total | ​ | $ | 165,881 | ​ | $ | 184,807 | ​ | $ | 499,277 | ​ | $ | 535,170 | ​
Sales by geographic region | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
United States | ​ | $ | 26,513 | ​ | $ | 59,207 | ​ | $ | 72,427 | ​ | $ | 129,819 | ​
EMEA(1) | ​ | ​ | 11,581 | ​ | ​ | 9,898 | ​ | ​ | 42,451 | ​ | ​ | 42,188 | ​
China | ​ | ​ | 45,650 | ​ | ​ | 54,590 | ​ | ​ | 144,032 | ​ | ​ | 184,274 | ​
Rest of APAC | ​ | ​ | 82,100 | ​ | ​ | 60,969 | ​ | ​ | 240,262 | ​ | ​ | 178,124 | ​
Rest of World | ​ |  | 37 | ​ |  | 143 | ​ |  | 105 | ​ |  | 765 | ​
Total | ​ | $ | 165,881 | ​ | $ | 184,807 | ​ | $ | 499,277 | ​ | $ | 535,170 | ​
(1) | EMEA consists of Europe, the Middle East, and Africa

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