AMKOR TECHNOLOGY, INC.

Previous wording

•political instability, conflicts (such as the ongoing war between Russia and Ukraine, conflicts in the Middle East, tensions between China and Taiwan and recent U.S. military action in Venezuela) and government shutdowns, civil disturbances and international events;

Current wording

•political instability, conflicts (such as the ongoing war between Russia and Ukraine, conflicts in the Middle East and tensions between China and Taiwan) and government shutdowns, civil disturbances and international events;

Previous wording

We have a substantial amount of debt, and the terms of the agreements governing our indebtedness allow us and our subsidiaries to incur more debt, subject to certain limitations. As of June 30, 2026, our total debt balance was $2,485.7 million, of which $150.8 million was classified as a current liability and $865.8 million was collateralized indebtedness. We may consider investments in joint ventures, increased capital expenditures, refinancings or acquisitions which may increase our indebtedness. If new debt is added to our consolidated debt level, the related risks that we face could increase.

Current wording

We have a substantial amount of debt, and the terms of the agreements governing our indebtedness allow us and our subsidiaries to incur more debt, subject to certain limitations. As of September 30, 2026, our total debt balance was $2,467.2 million, of which $149.5 million was classified as a current liability and $845.8 million was collateralized indebtedness. We may consider investments in joint ventures, increased capital expenditures, refinancings or acquisitions which may increase our indebtedness. If new debt is added to our consolidated debt level, the related risks that we face could increase.

Previous wording

Borrowings under our credit facility, including the outstanding term loan, are at variable rates of interest and as a result expose us to interest rate risk. Interest rates increased throughout 2022 and 2023. While interest rates stabilized and have begun to decrease since 2024, if interest rates increase, our debt service obligations on the variable rate indebtedness would increase even though the amount borrowed remained the same, and our net income and cash flows, including cash available for servicing our indebtedness, will correspondingly decrease. We currently do not maintain interest rate swaps with respect to all of our variable rate indebtedness, and any swaps we enter into may not fully mitigate our interest rate risk. To the extent the risk materializes and is not fully mitigated, the resulting increase in interest expense could have a material adverse effect on our results of operations. Further, significant changes in our credit rating, disruptions in the global financial markets, including bank failures, or incurrence of new or refinancing of existing indebtedness at higher interest rates could have a material and adverse effect on our access to and cost of capital for future financings, and financial condition.

Current wording

Borrowings under our credit facility, including the outstanding term loan, are at variable rates of interest and as a result expose us to interest rate risk. Interest rates increased throughout 2022 and 2023 before stabilizing and declining in 2024 and 2025. In September 2026, the Federal Reserve raised its interest rates, its first increase since 2023. As a result of this increase and the potential for further increases, our debt service obligations on the variable rate indebtedness would increase even though the amount borrowed remained the same, and our net income and cash flows, including cash available for servicing our indebtedness, will correspondingly decrease. We currently do not maintain interest rate swaps with respect to all of our variable rate indebtedness, and any swaps we enter into may not fully mitigate our interest rate risk. To the extent the risk materializes and is not fully mitigated, the resulting increase in interest expense could have a material adverse effect on our results of operations. Further, significant changes in our credit rating, disruptions in the global financial markets, including bank failures, or incurrence of new or refinancing of existing indebtedness at higher interest rates could have a material and adverse effect on our access to and cost of capital for future financings, and financial condition.

Previous wording

Holders of our 2031 Notes have the right, subject to certain conditions and limited exceptions, to require us to repurchase their 2031 Notes following a “fundamental change” (as defined in the indenture for the 2031 Notes) at a cash repurchase price generally equal to the principal amount of the 2031 Notes to be repurchased, plus accrued and unpaid interest, if any. Upon maturity of the 2031 Notes, we must pay their principal amount and accrued and unpaid interest in cash, unless they have been previously repurchased, redeemed or converted. In addition, all conversions of 2031 Notes will be settled partially or entirely in cash. We may not have enough available cash or be able to obtain financing at the time we are required to repurchase the 2031 Notes or pay the cash amounts due upon their maturity or conversion. In addition, applicable law, regulatory authorities and the agreements governing our other indebtedness may restrict our ability to repurchase the 2031 Notes or to pay the cash amounts due upon their maturity or conversion. Our failure to repurchase

Current wording

Holders of our 2031 Notes have the right, subject to certain conditions and limited exceptions, to require us to repurchase their 2031 Notes following a “fundamental change” (as defined in the indenture for the 2031 Notes) at a cash repurchase price generally equal to the principal amount of the 2031 Notes to be repurchased, plus accrued and unpaid interest, if any. Upon maturity of the 2031 Notes, we must pay their principal amount and accrued and unpaid interest in cash, unless they have been previously repurchased, redeemed or converted. In addition, all conversions of 2031 Notes will be settled partially or entirely in cash. We may not have enough available cash or be able to obtain financing at the time we are required to repurchase the 2031 Notes or pay the cash amounts due upon their maturity or conversion. In addition, applicable law, regulatory authorities and the agreements governing our other indebtedness may restrict our ability to

Previous wording

-50- the 2031 Notes or to pay the cash amounts due upon their maturity or conversion when required will constitute a default under the indenture governing the 2031 Notes. A default under the indenture governing the 2031 Notes or the fundamental change itself could also lead to a default under agreements governing our other indebtedness, which may result in that other indebtedness becoming immediately payable in full. We may not have sufficient funds to satisfy all amounts due under the other indebtedness and the 2031 Notes.

Current wording

-50- repurchase the 2031 Notes or to pay the cash amounts due upon their maturity or conversion. Our failure to repurchase the 2031 Notes or to pay the cash amounts due upon their maturity or conversion when required will constitute a default under the indenture governing the 2031 Notes. A default under the indenture governing the 2031 Notes or the fundamental change itself could also lead to a default under agreements governing our other indebtedness, which may result in that other indebtedness becoming immediately payable in full. We may not have sufficient funds to satisfy all amounts due under the other indebtedness and the 2031 Notes.

Previous wording

As of June 30, 2026, Susan Y. Kim, the Chairman of our Board of Directors, and members of the Kim family and affiliates owned approximately 122.1 million shares, or approximately 49.2%, of our outstanding common stock. The Kim family also has options to acquire approximately 0.6 million shares. If the options are exercised, the Kim family’s total ownership would be an aggregate of approximately 122.7 million shares, or approximately 49.4% of our outstanding common stock.

Current wording

As of September 30, 2026, Susan Y. Kim, the Chairman of our Board of Directors, and members of the Kim family and affiliates owned approximately 122.6 million shares, or approximately 49.5%, of our outstanding common stock. The Kim family also has options to acquire approximately 0.1 million shares. If the options are exercised, the Kim family’s total ownership would be an aggregate of approximately 122.7 million shares, or approximately 49.5% of our outstanding common stock.

Previous wording

In December 2024, the Commerce Department awarded us up to $407 million in direct funding pursuant to the CHIPS Act for the Arizona Facility. This award requires us to achieve construction and production milestones and restricts us from undertaking certain activities. We cannot guarantee that we will successfully achieve and maintain outcomes or be able to comply with other obligations required to qualify for this award or that the Commerce Department will provide or continue to provide such funding. The award arrangements provide the Commerce Department with rights to audit our compliance with their terms and obligations, and such audits could result in modifications to, or termination of, the award. To a lesser extent, we also receive incentives from state and local governments for the Arizona Facility, which have similar terms and conditions. Any awards or incentives we receive could be subject to reduction, termination, or clawback, and any decrease, termination, or clawback of such government awards and incentives could have a material adverse effect on our business, results of operations or financial condition.

Current wording

In December 2024, the Commerce Department awarded us up to $407 million in direct funding pursuant to the CHIPS Act for the Arizona Facility. This award requires us to achieve construction and production milestones and restricts us from undertaking certain activities. Our progress toward these milestones may be delayed by factors outside of our control, including shortages of or delays in obtaining materials, equipment and skilled labor, permitting or regulatory delays, severe weather, natural disasters and other events affecting the construction or operation of the Arizona Facility. We cannot guarantee that we will successfully achieve and maintain outcomes or be able to comply with other obligations required to qualify for this award or that the Commerce Department will provide or continue to provide such funding. The award arrangements provide the Commerce Department with rights to audit our compliance with their terms and obligations, and such audits could result in modifications to, or termination of, the award. To a lesser extent, we also receive incentives from state and local governments for the Arizona Facility, which have similar terms and conditions. Any awards or incentives we receive could be subject to reduction, termination, or clawback, and any decrease, termination, or clawback of such government awards and incentives could have a material adverse effect on our business, results of operations or financial condition.

Previous wording

We have significant packaging and test services and other operations in China, Japan, Korea, Malaysia, the Philippines, Portugal, Singapore, Taiwan and Vietnam, and the Arizona Facility is a new factory under construction in the United States. Such operations are or could be subject to: natural disasters, such as earthquakes, tsunamis, typhoons, floods, droughts, extreme heat, volcanoes and other severe weather and geological events, and other calamities, such as fire; the outbreak of infectious diseases (such as Covid-19 and other coronaviruses, Ebola or flu); industrial strikes; government-imposed travel restrictions or quarantines; breakdowns of equipment; difficulties or delays in obtaining materials, equipment, utilities and services, including electricity and water; political events or instability; sanctions imposed by the U.S. and other countries in connection with geopolitical tensions; changes in trade policies, including the imposition of tariffs, export controls or other trade barriers; acts of war or armed conflict (such as ongoing war between Russia and Ukraine, conflicts in the Middle East, tensions between China and Taiwan and recent U.S. military action in Venezuela); terrorist incidents and other hostilities in regions where we have facilities; and industrial accidents and other events, that

Current wording

We have significant packaging and test services and other operations in China, Japan, Korea, Malaysia, the Philippines, Portugal, Singapore, Taiwan and Vietnam, and the Arizona Facility is a new factory under construction in the United States. Such operations are or could be subject to: natural disasters, such as earthquakes, tsunamis, typhoons, floods, droughts, extreme heat, volcanoes, heavy winds and other severe weather and geological events, and other calamities, such as fire; the outbreak of infectious diseases (such as Covid-19 and other coronaviruses, Ebola or flu); industrial strikes; government-imposed travel restrictions or quarantines; breakdowns of equipment; difficulties or delays in obtaining materials, equipment, utilities and services, including electricity and water; political events or instability; sanctions imposed by the U.S. and other countries in connection with geopolitical tensions; changes in trade policies,

Previous wording

-55- could disrupt or even shut down our operations. While our global manufacturing footprint may allow us to shift production to other factories without substantial cost or production delays, certain of our services are currently performed using equipment located in one or only a subset of our factories. A major disruption or shutdown of any such factory could completely impair our ability to perform those services or require us to shift them to another location. As a result, our ability to fulfill customer orders may be impaired or delayed, and we could incur significant losses.

Current wording

-55- including the imposition of tariffs, export controls or other trade barriers; acts of war or armed conflict (such as ongoing war between Russia and Ukraine, conflicts in the Middle East, tensions between China and Taiwan and recent U.S. military action in Venezuela); terrorist incidents and other hostilities in regions where we have facilities; and industrial accidents and other events, that could disrupt or even shut down our operations. While our global manufacturing footprint may allow us to shift production to other factories without substantial cost or production delays, certain of our services are currently performed using equipment located in one or only a subset of our factories. A major disruption or shutdown of any such factory could completely impair our ability to perform those services or require us to shift them to another location. As a result, our ability to fulfill customer orders may be impaired or delayed, and we could incur significant losses.