Washington, DC 20549
Pursuant to Section 13 or 15(d) of the
Securities Exchange Act of 1934
Date of Report (Date of earliest event reported)
February 9, 2011
(Exact name of registrant as specified in its charter)
DELAWARE   000-29472   23-1722724
(State or Other Jurisdiction of
  (Commission File Number)   (IRS Employer
Identification No.)

(Address of Principal Executive Offices, including Zip Code)
(480) 821-5000
(Registrant’s telephone number, including area code)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:
o     Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
o     Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
o     Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
o     Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))



Item 2.02. Results of Operations and Financial Condition.
Attached hereto as Exhibit 99.1 and incorporated by reference herein is financial information for Amkor Technology, Inc. for the three months and year ended December 31, 2010 and forward-looking statements relating to the first quarter of 2011 as presented in a press release dated February 9, 2011. The information in this Form 8-K and the exhibit attached hereto is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”) or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, regardless of any general incorporation language in such filing.
Exhibit 99.1 discloses return on invested capital (“ROIC”) for the years ended December 31, 2010 and 2009 and free cash flow for the three months and year ended December 31, 2010. ROIC and free cash flow are considered non-GAAP financial measures. Generally, a non-GAAP financial measure is a numerical measure of a company’s performance, financial position, or cash flows that either excludes or includes amounts that are not normally excluded or included in the most directly comparable measure calculated and presented in accordance with generally accepted accounting principles. ROIC is defined as net operating profit after tax divided by average invested capital (the sum of average debt plus average equity minus average cash). We believe that ROIC is useful information for our investors in evaluating whether our capital investments are generating shareholder value. We define free cash flow as net cash provided by operating activities less purchases of property, plant and equipment. However, we believe free cash flow to be relevant and useful information to our investors because it provides them with additional information in assessing our liquidity, capital resources and financial operating results. Our management uses free cash flow in evaluating our liquidity, our ability to service debt and our ability to fund capital additions. However, these measures should be considered in addition to, and not as a substitute for, or superior to other measures of financial performance prepared in accordance with GAAP, and may not be comparable to similarly titled measures reported by other companies. The non-GAAP measures included in our press release have been reconciled to the nearest GAAP measure as required under SEC rules regarding the use of non-GAAP financial measures.
Item 9.01. Financial Statements and Exhibits.
(d) Exhibits.
  Text of Press Release dated February 9, 2011, which is furnished (not filed) herewith.
     Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
  By:   /s/ Joanne Solomon    
    Joanne Solomon   
    Executive Vice President and Chief Financial Officer   
Date: February 9, 2011



Exhibit   Description
  Text of Press Release dated February 9, 2011