New Facilities Investment, etc.(Voluntary Disclosure)

Decision on Extension of Trust Contract, etc. for Repurchase of Treasury Stocks

[Corrected description]Report on Major Issues (자기주식취득신탁계약체결결정)

Contract for Sales or Supply(Voluntary Disclosure)

Exercise of Warrants

Quarterly Report (2013.03)

Report on significant holdings of stocks, etc. (Short form)

Report on significant holdings of stocks, etc. (Short form)

Exercise of Warrants(제1회차 BW)

Controlling Company : Admission of Subsidiary with Disclosure Obligation

Annual Report (2012.12)

Acquisition status report under trust contract

Report on significant holdings of stocks, etc. (General)

Report on status of specific securities, etc. owned by executives and major shareholders

Report on status of specific securities, etc. owned by executives and major shareholders