AMKOR TECHNOLOGY, INC.AMKR
AMKOR TECHNOLOGY, INC. Segments Disclosure
Business Segments, Customer Concentrations and Geographic Information
We operate as a single operating segment as managed by our Chief Executive Officer, who is considered our chief operating decision maker (“CODM”). The CODM bears the ultimate responsibility for, and is actively engaged in, the allocation of resources and the evaluation of our operating and financial results. We have concluded that we have a single operating segment based on the following:
•We are managed under a functionally-based organizational structure with the head of each function reporting directly to the CODM;
•Our CODM assesses performance, including resource allocation, trend identification and variance analysis, based on consolidated operating performance and financial results based on net income;
•Our CODM allocates resources and makes other operating decisions based on specific customer business opportunities; and
•We have an integrated process for the design, development and manufacturing services we provide to all of our customers. We also have centralized sales and administrative functions.
The following table presents revenue, profit or loss and significant segment expenses for our single operating segment:
| For the Year Ended December 31, | |||||||||||||||||
| 2025 | 2024 | 2023 | |||||||||||||||
| (In thousands) | |||||||||||||||||
| Net sales | $ | 6,707,981 | $ | 6,317,692 | $ | 6,503,065 | |||||||||||
| Less: | |||||||||||||||||
| Materials cost of sales | 3,700,307 | 3,478,752 | 3,584,090 | ||||||||||||||
| Labor cost of sales | 697,852 | 628,201 | 643,993 | ||||||||||||||
| Depreciation cost of sales | 584,638 | 534,921 | 576,120 | ||||||||||||||
| Other cost of sales | 786,585 | 742,606 | 755,709 | ||||||||||||||
| Selling, general and administrative | 304,471 | 331,806 | 295,393 | ||||||||||||||
| Research and development | 166,743 | 162,951 | 177,473 | ||||||||||||||
| Interest expense | 75,444 | 64,945 | 59,000 | ||||||||||||||
| Income tax expense | 68,503 | 75,481 | 81,710 | ||||||||||||||
Other segment items (1) | (52,678) | (57,506) | (32,554) | ||||||||||||||
| Segment net income | $ | 376,116 | $ | 355,535 | $ | 362,131 | |||||||||||
(1)Other segment items included in segment net income includes interest income, foreign currency (gain) loss, net, loss on debt retirement and other (income) expense.
The following tables represent other balances included in net income or that are regularly provided to the CODM:
| For the Year Ended December 31, | |||||||||||||||||
| 2025 | 2024 | 2023 | |||||||||||||||
| (In thousands) | |||||||||||||||||
| Interest income | $ | 62,397 | $ | 65,541 | $ | 48,458 | |||||||||||
| Depreciation and amortization expense | 642,008 | 594,663 | 631,508 | ||||||||||||||
| Capital expenditures | 904,614 | 743,796 | 749,467 | ||||||||||||||
| December 31, | |||||||||||
| 2025 | 2024 | ||||||||||
| (In thousands) | |||||||||||
| Total assets | $ | 8,136,309 | 6,944,328 | ||||||||
Net sales by product group consist of the following:
| For the Year Ended December 31, | |||||||||||||||||
| 2025 | 2024 | 2023 | |||||||||||||||
| (In thousands) | |||||||||||||||||
| Advanced Products | $ | 5,555,555 | $ | 5,174,459 | $ | 5,032,859 | |||||||||||
| Mainstream Products | 1,152,426 | 1,143,233 | 1,470,206 | ||||||||||||||
| Total net sales | $ | 6,707,981 | $ | 6,317,692 | $ | 6,503,065 | |||||||||||
(1)Advanced Products include flip chip, memory and wafer-level processing and related test services.
(2)Mainstream Products include all other wirebond packaging and related test services.
Net sales by end market consist of the following:
| For the Year Ended December 31, | |||||||||||||||||
| 2025 | 2024 | 2023 | |||||||||||||||
| Communications (smartphones, tablets) | 46 | % | 48 | % | 50 | % | |||||||||||
| Computing (data center, infrastructure, PC/laptop, storage) | 20 | % | 19 | % | 16 | % | |||||||||||
| Automotive, industrial and other (ADAS, electrification, infotainment, safety) | 19 | % | 18 | % | 21 | % | |||||||||||
| Consumer (AR & gaming, connected home, home electronics, wearables) | 15 | % | 15 | % | 13 | % | |||||||||||
| Total net sales | 100 | % | 100 | % | 100 | % | |||||||||||
Net sales by region based on customer headquarters location consist of the following:
| For the Year Ended December 31, | |||||||||||||||||
| 2025 | 2024 | 2023 | |||||||||||||||
| (In thousands) | |||||||||||||||||
| Europe, Middle East and Africa | $ | 852,805 | $ | 817,875 | $ | 1,043,880 | |||||||||||
| Asia Pacific (excluding Japan) | 733,454 | 716,344 | 704,520 | ||||||||||||||
| Japan | 724,613 | 800,713 | 935,620 | ||||||||||||||
| Total foreign countries | 2,310,872 | 2,334,932 | 2,684,020 | ||||||||||||||
| United States | 4,397,109 | 3,982,760 | 3,819,045 | ||||||||||||||
| Total net sales | $ | 6,707,981 | $ | 6,317,692 | $ | 6,503,065 | |||||||||||
In 2025, 2024 and 2023 one customer accounted for 29.8%, 30.8% and 27.7% of total net sales, respectively. In 2025 and 2024, a second customer accounted for 11.1% and 10.2% of total net sales, respectively.
Property, plant and equipment, net, based on physical location, consist of the following:
| December 31, | |||||||||||
| 2025 | 2024 | ||||||||||
| (In thousands) | |||||||||||
| China | $ | 255,909 | $ | 308,889 | |||||||
| Japan | 141,543 | 139,126 | |||||||||
| Korea | 2,098,150 | 1,923,953 | |||||||||
| Malaysia | 47,221 | 55,166 | |||||||||
| Philippines | 187,169 | 172,180 | |||||||||
| Portugal | 162,916 | 130,653 | |||||||||
| Taiwan | 352,692 | 322,539 | |||||||||
| Vietnam | 517,847 | 471,581 | |||||||||
| Other foreign countries | 1,465 | 1,553 | |||||||||
| Total foreign countries | 3,764,912 | 3,525,640 | |||||||||
| United States | 105,896 | 50,508 | |||||||||
| Total property, plant and equipment, net | $ | 3,870,808 | $ | 3,576,148 | |||||||
Historical Timeline
| Fiscal Year | Filed | |
|---|---|---|
| 2025 | Feb 20, 2026 | Showing above |
| 2024 | Feb 21, 2025 | |
| 2023 | Feb 16, 2024 | |
| 2022 | Feb 22, 2023 | |
| 2021 | Feb 18, 2022 | |
| 2020 | Feb 19, 2021 | |
| 2019 | Feb 19, 2020 | |
| 2018 | Feb 22, 2019 | |
| 2017 | Feb 23, 2018 | |
| 2016 | Feb 24, 2017 | |
| 2015 | Feb 22, 2016 | |
About Segments Disclosures
Segment disclosures break a company into its reportable operating units, revealing revenue, profit, and asset allocation that consolidated financial statements obscure. Under ASC 280, segments must match how the chief operating decision maker views the business, providing a window into internal management structure and resource allocation priorities.
Key signals: compare segment margins to identify which units drive profitability and which destroy value. Watch for changes in the number of reportable segments — segment aggregation or disaggregation often coincides with strategic shifts or attempts to obscure declining performance. Intersegment elimination patterns reveal internal pricing practices. The reconciliation between segment totals and consolidated figures exposes corporate overhead allocation and unallocated items. Geographic revenue concentration highlights regulatory and currency exposure. Compare segment-level capital expenditure against segment revenue to assess where management is investing for future growth versus harvesting existing assets.