Segment Reporting | Segment Reporting The Company has the following reportable segments: Performance Materials, Electronic Materials, Precision Optics, and Other. The Company’s reportable segments represent components of the Company for which separate financial information is available that is utilized on a regular basis by the Chief Executive Officer, the Company's chief operating decision maker, in determining how to allocate the Company’s resources and evaluate performance. Performance Materials provides advanced engineered solutions comprised of beryllium and non-beryllium containing alloy systems and custom engineered parts in strip, bulk, rod, plate, bar, tube, and other customized shapes. Electronic Materials produces advanced chemicals, microelectric packaging, precious metal, non-precious metal, and specialty metal products, including vapor deposition targets, frame lid assemblies, clad and precious metal preforms, high temperature braze materials, and ultra-fine wire. Precision Optics produces thin film coatings, optical filter materials, sputter-coated, and precision-converted thin film materials. The Other reportable segment includes unallocated corporate costs and assets. The primary measurement used by management to measure the financial performance of each segment is earnings before interest, taxes, depreciation and amortization ("EBITDA"). The below table presents financial information for each segment and a reconciliation of EBITDA to Net Income (the most directly comparable GAAP financial measure) for the first quarter of 2023 and 2022: (Thousands) Three months ended March 31, 2023 Three months ended April 1, 2022 Net sales: Performance Materials (1) 187,014 149,630 Electronic Materials (1) 228,820 270,836 Precision Optics 26,692 28,579 Other — — Net sales $ 442,526 $ 449,045 Segment EBITDA: Performance Materials 42,770 24,792 Electronic Materials 13,955 12,148 Precision Optics 2,692 2,191 Other (6,655) (5,177) Total Segment EBITDA $ 52,762 $ 33,954 Income tax expense 4,580 3,021 Interest expense - net 7,502 3,735 Depreciation, depletion and amortization 15,092 13,179 Net income $ 25,588 $ 14,019 (1) Excludes inter-segment sales of $3.1 million for the first quarter of 2023 and $5.5 million for the first quarter of 2022 for Electronic Materials and $0.3 million for the first quarter of 2022 for Performance Materials. Inter-segment sales are eliminated in consolidation. The following table disaggregates revenue for each segment by end market for the first quarter of 2023 and 2022: (Thousands) Performance Materials Electronic Materials Precision Optics Other Total First Quarter 2023 End Market Semiconductor $ 2,590 $ 180,616 $ 911 $ — $ 184,117 Industrial 38,674 12,969 8,733 — 60,376 Aerospace and defense 30,358 2,077 4,648 — 37,083 Consumer electronics 9,356 187 3,255 — 12,798 Automotive 25,493 1,501 2,608 — 29,602 Energy 13,468 24,951 — — 38,419 Telecom and data center 16,126 13 — — 16,139 Other 50,949 6,506 6,537 — 63,992 Total $ 187,014 $ 228,820 $ 26,692 $ — $ 442,526 First Quarter 2022 End Market Semiconductor $ 1,800 $ 214,922 $ 1,327 $ — $ 218,049 Industrial 40,069 15,866 8,434 — 64,369 Aerospace and defense 23,684 2,614 5,145 — 31,443 Consumer electronics 13,002 325 5,312 — 18,639 Automotive 22,235 1,657 2,464 — 26,356 Energy 10,849 29,119 — — 39,968 Telecom and data center 16,081 45 — — 16,126 Other 21,910 6,288 5,897 — 34,095 Total $ 149,630 $ 270,836 $ 28,579 $ — $ 449,045 |