[O2MICRO INTERNATIONAL LIMITED (Incorporated in the Cayman Islands with limited liability) (Stock Code: 457) PROPOSED VOLUNTARY WITHDRAWAL OF LISTING ON THE MAIN BOARD OF Proposed Withdrawal No Shareholder is required to abstain from voting at the General Meeting to approve the Proposed Withdrawal. 1 INTRODUCTION Old Shares The Company’s ordinary shares with a par value of US$0.001 per share (“] [2 Micro Announces Proposed Voluntary Withdrawal of Listing on the O GEORGE TOWN, Grand Cayman, February 27, 2009. O 2 ® ® Micro A shareholder meeting will be convened at an appropriate time to seek the approval of Shareholders for the Proposed Withdrawal. Given Shareholder approval, the estimated last day of trading on the SEHK will be during the third]

[SIZE="2"> O2MICRO INTERNATIONAL LIMITED (Incorporated in theyman Islands with limited liability) (Stockde: 457) PROPOSED VOLUNTARY WITHDRAWAL OF LISTING ON THE MAIN BOARD OF FACE="Times New Roman" SIZE="2"> Proposed Withdrawal No Shareholder is required tostain from voting at the General Meeting to approve the Proposed Withdrawal. 1 INTRODUCTION Old Shares] [2 Micro Announces Proposed Voluntary Withdrawal of Listing on the O GEORGE TOWN, Grandyman, February27, 2009. O 2 Micro A shareholder meeting will benvened at an appropriate time to seek the approval of Shareholders for the Proposed Withdrawal. Given Shareholder approval, the estimated lasty of trading on the SEHK will be during the third quarter]