UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington D.C. 20549
_______________
 
FORM 6-K
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REPORT OF FOREIGN PRIVATE ISSUER
PURSUANT TO RULE 13a-16 OR 15d-16 UNDER
THE SECURITIES EXCHANGE ACT OF 1934
 
For the Month of September 2009
 
Commission file number: 000-30910
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O2MICRO INTERNATIONAL LIMITED
(Translation of registrant’s name into English)
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Grand Pavilion Commercial Centre, West Bay Road
P.O. Box 32331 SMB, George Town
Grand Cayman, Cayman Islands
(Address of principal executive office)
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Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.
Form 20-F  x    Form 40-F  ¨
 
Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):  ¨
 
Note: Regulation S-T Rule 101(b)(1) only permits the submission in paper of a Form 6-K if submitted solely to provide an attached annual report to security holders.
 
Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):  ¨
 
Note: Regulation S-T Rule 101(b)(7) only permits the submission in paper of a Form 6-K if submitted to furnish a report or other document that the registrant foreign private issuer must furnish and make public under the laws of the jurisdiction in which the registrant is incorporated, domiciled or legally organized (the registrant’s “home country”), or under the rules of the home country exchange on which the registrant’s securities are traded, as long as the report or other document is not a press release, is not required to be and has not been distributed to the registrant’s security holders, and, if discussing a material event, has already been the subject of a Form 6-K submission or other Commission filing on EDGAR.
 
Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.  Yes  ¨    No  x
 
If “Yes” is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82-             
 

 
 
 
1.
Other Information

On September 1, 2009 (HKT), O2Micro International Limited (the “Company”) issued a press release announcing its voluntary withdrawal of listing on the Stock Exchange of Hong Kong Limited.  A copy of the Company’s press release is attached hereto as Exhibit 99.1 and is incorporated herein by reference.

2.
Exhibits
 
(a) Exhibits:
 
The Exhibit Index attached hereto is hereby incorporated by reference to this Item.
 
(b)
 
EXHIBIT INDEX
 
     
Exhibit
Number
  
Exhibit Title
 
   
99.1
  
Announcement dated September 1, 2009 (HKT), in respect of Voluntary Withdrawal of Listing on the Stock Exchange of Hong Kong Limited.
 


 
 
 
SIGNATURES
 
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, thereunto duly authorized.
 
         
   
O2MICRO INTERNATIONAL LIMITED
     
September 15, 2009
  
By:
  
 
/s/ Sterling Du
       
Sterling Du
Chief Executive Officer