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(1)

In June 2012, Amkor Technology, Inc. ("ATI") amended and restated the $100.0 million senior secured revolving credit facility to increase the facility amount to $150.0 million and extend its term by two years to June 2017. The facility has a letter of credit sub-limit of $25.0 million. As amended, interest is charged under the facility at a floating rate based on the base rate in effect from time to time plus the applicable margins which range from 0.25% to 1.00% for base rate revolving loans, or LIBOR plus 1.5% to 2.25% for LIBOR revolving loans. In connection with amending and extending the facility, ATI capitalized $0.8 million of deferred debt issuance costs for the six months ended June 30, 2012.

(2)

In June 2012, Amkor Technology Korea, Inc., a Korean subsidiary (“ATK”) entered into a $41.0 million revolving credit facility with a Korean Bank with a term of 12 months. The loan bears interest at the foreign currency funding-linked base rate plus 2.33% (4.80% as of June 30, 2012). Principal is payable upon maturity and interest is paid monthly. The loan is collateralized with certain land, buildings and equipment at our ATK facilities. In July 2012,

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(3)

In March 2012, ATK repaid the remaining outstanding balance due May 2013 by entering into a $100.0 million term loan with the same Korean bank, which is due upon maturity in March 2015. The term loan bears interest at a foreign currency funding-linked base rate plus 2.30% (5.27% as of June 30, 2012) to be paid monthly. The term loan is collateralized by substantially all the land, factories and equipment located at our ATK facilities.

(4)

In June 2012, ATK entered into a $150.0 million, five-year secured term loan with a Korean bank which is collateralized by substantially all the land, factories and equipment located at our ATK facilities. Interest is paid quarterly, $50.0 million at LIBOR plus 3.90% (4.36% as of June 30, 2012) ("Tranche A") and $100.0 million at LIBOR plus 3.94% (4.40% as of June 30, 2012) ("Tranche B"). Tranche B is available to be drawn over the next 12 months to fund capital additions. In July 2012, ATK drew $50.0 million from Tranche A and $10.0 million from Tranche B. The proceeds of Tranche A were used to fully repay the term loan due July 2014. The term loan is due in full upon maturity in July 2017.

(5)

In January 2012, Amkor Technology Taiwan Ltd, a Taiwanese subsidiary, converted the existing NT$1.5 billion term loan from a Taiwanese to a U.S. dollar denominated term loan. The term loan previously bore interest at the 90-day primary commercial paper rate plus 0.835% and now bears interest at the Taipei Foreign Exchange ("TAIFX") six month U.S. dollar rate plus a bank-determined spread (2.59% as of June 30, 2012). All other terms and conditions remain the same.

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(1)	Scheduled interest payment obligations were calculated using stated coupon rates for fixed rate debt and interest rates applicable at June 30, 2012, for variable rate debt.

(2)	Represents capital-related purchase obligations outstanding at June 30, 2012.

(3)	Represents estimated benefit payments for our Korean subsidiary severance plan.

•	$27.5 million of net foreign pension plan obligations for which the timing and actual amount of funding required is uncertain. We expect to contribute approximately $3.2 million to the defined benefit pension plans during the remainder of 2012.

•	$3.3 million net liability associated with unrecognized tax benefits. Due to the uncertainty regarding the amount and the timing of any future cash outflows associated with our unrecognized tax benefits, we are unable to reasonably estimate the amount and period of ultimate settlement, if any, with the various taxing authorities.

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•	fluctuation in demand for semiconductors and conditions in the semiconductor industry;

•	changes in our capacity utilization rates;

•	changes in average selling prices;

•	changes in the mix of semiconductor packages;

•	evolving packaging and test technology;

•	absence of backlog and the short-term nature of our customers’ commitments and the impact of these factors on the timing and volume of orders relative to our production capacity;

•	changes in costs, availability and delivery times of raw materials and components;

•	changes in labor costs to perform our services;

•	wage and commodity price inflation, including precious metals;

•	the timing of expenditures in anticipation of future orders;

•	changes in effective tax rates;

•	the availability and cost of financing;

•	intellectual property transactions and disputes;

•	high leverage and restrictive covenants;

•	warranty and product liability claims and the impact of quality excursions and customer disputes and returns;

•	costs associated with litigation judgments, indemnification claims and settlements;

•	international events, political instability, civil disturbances or environmental or natural events, such as earthquakes, that impact our operations;

•	pandemic illnesses that may impact our labor force and our ability to travel;

•	difficulties integrating acquisitions and the failure of our joint ventures to operate in accordance with business plans;

•	our ability to attract and retain qualified employees to support our global operations;

•	loss of key personnel or the shortage of available skilled workers;

•	fluctuations in foreign exchange rates and the cost of materials used in our packaging services such as gold and copper;

•	delay, rescheduling and cancellation of large orders;

•	fluctuations in our manufacturing yields and

•	dependence on key customers or concentration of customers in certain market segments, such as wireless communications.

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•	their desire to realize higher utilization of their existing packaging and test capacity, especially during downturns in the semiconductor industry;

•	their unwillingness to disclose proprietary technology;

•	their possession of more advanced packaging and test technologies and

•	the guaranteed availability of their own packaging and test capacity.

•	make it more difficult for us to satisfy our obligations with respect to our indebtedness, including our obligations under our indentures to purchase notes tendered as a result of a change in control of Amkor;

•	increase our vulnerability to general adverse economic and industry conditions;

•	limit our ability to fund future working capital, capital expenditures, research and development and other business opportunities;

•	require us to dedicate a substantial portion of our cash flow from operations to service payments on our debt;

•	increase the volatility of the price of our common stock;

•	limit our flexibility to react to changes in our business and the industry in which we operate;

•	place us at a competitive disadvantage to any of our competitors that have less debt and

•	limit, along with the financial and other restrictive covenants in our indebtedness, among other things, our ability to borrow additional funds.

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•	changes in consumer demand resulting from deteriorating conditions in local economies;

•	regulations imposed by foreign governments, including limitations or taxes imposed on the payment of dividends and other payments by non-U.S. subsidiaries;

•	fluctuations in currency exchange rates;

•	political, military, civil unrest and terrorist risks, particularly an increase in tensions between North Korea and South Korea;

•	disruptions or delays in shipments caused by customs brokers or government agencies;

•	changes in regulatory requirements, tariffs, customs, duties and other restrictive trade barriers or policies;

•	difficulties in staffing, retention and employee turnover and managing foreign operations, including foreign labor disruptions;

•	difficulty in enforcing contractual rights and protecting our intellectual property rights and

•	potentially adverse tax consequences resulting from changes in tax laws in the foreign jurisdictions in which we operate.

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•	we may face delays in the design and implementation of the system;

•	the cost of the system may exceed our plans and expectations and

•	disruptions resulting from the implementation of the system may impact our ability to process transactions and delay shipments to customers, impact our results of operations or financial condition or harm our control environment.

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•	our future financial condition, results of operations and cash flows;

•	general market conditions for financing;

•	volatility in fixed income, credit and equity markets and

•	economic, political and other global conditions.

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•	discontinue the use of certain processes;

•	cease to provide the services at issue;

•	pay substantial damages;

•	develop non-infringing technologies or

•	acquire licenses to such technology.

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•	contaminants in the manufacturing environment;

•	human error;

•	equipment malfunction;

•	changing processes to address environmental requirements;

•	defective raw materials or

•	defective plating services.

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(a)	Includes an insignificant amount of shares of common stock surrendered to us to satisfy tax withholding obligations associated with the vesting of restricted shares issued to employees.

(b)

Our Board of Directors previously authorized the repurchase of up to $300.0 million of our common stock, exclusive of any fees, commissions or other expenses. During the three months ended June 30, 2012, we purchased 7.1 million shares of common stock for an aggregate purchase price of $33.2 million, net of $0.1 million of commissions, for an average price of $4.66. At June 30, 2012, approximately $133.4 million was available to repurchase common stock pursuant to the stock repurchase program.

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Signature	Gil C. Tily, Executive Vice President, CAO & General Counsel

1.	I have reviewed this Quarterly Report on Form 10-Q of Amkor Technology, Inc.;

2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.	Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.	The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a)	Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b)	Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c)	Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d)	Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.	The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a)	All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b)	Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal controls over financial reporting.

1.	I have reviewed this Quarterly Report on Form 10-Q of Amkor Technology, Inc.;

2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.	Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.	The registrant’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a)	Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b)	Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c)	Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d)	Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.	The registrant’s other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a)	All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b)	Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal controls over financial reporting.