| 25th Annual General Meeting of Shareholders (March, 28, 2025) | Outcome | 
            
            
            
                | 1 | Approval of Financial statements for the 25th Fiscal Year(2024.1.1~2024.12.31) | Approved as Proposed | 
            
                | 2 | Approval of the Ceiling Amount of the Remuneration for directors | Approved as Proposed | 
            
                | 3 | Approval of the Ceiling Amount of Remuneration for an Auditor | Approved as Proposed | 
            
                | 4 | Amendment to the Articles of Incorporation | Approved as Proposed | 
            
                | 5 | Appointment of an outside director to serve as a member of the Audit Committee (Lee, Hyun cheol) | Approved as Proposed | 
            
                | 6 | Appointment of Audit Committee members | Approved as Proposed | 
            
                | 6-1 | Appointment of an Audit Committee member (Kim, Young Ho) | Approved as Proposed | 
            
                | 6-2 | Appointment of an Audit Committee member (Lee, Seon Hye) | Approved as Proposed | 
            
        
        
            
                
                
                
            
            
            
                | 24th Annual General Meeting of Shareholders (March, 29, 2024) | Outcome | 
            
            
            
                | 1 | Approval of Financial statements for the 24th Fiscal Year(2023.1.1~2023.12.31) | Approved as Proposed | 
            
                | 2-1 | Approval of the Appointment of an Excutive Director (Park, Kwan Ho) | Approved as Proposed | 
            
                | 2-2 | Approval of the Appointment of an Excutive Director (Choi, Jong Goo) | Approved as Proposed | 
            
                | 3 | Approval of the Appointment of an Auditor | Approved as Proposed | 
            
                | 4 | Ratification of Stock Option Grant approved by the resolution of the board of directors | Approved as Proposed | 
            
                | 5 | Approval of the Ceiling Amount of the Remuneration for directors | Approved as Proposed | 
            
                | 6 | Approval of the Ceiling Amount of the Remuneration for an Auditor | Approved as Proposed | 
            
        
        
            
                
                
                
            
            
            
                | 23rd Annual General Shareholders' Meeting(Friday, March 31, 2023) | Outcome | 
            
            
            
                | 1 | Approval of Financial statements for the 23rd Fiscal Year(2022.1.1~2022.12.31) | Approved as Proposed | 
            
                | 2 | Approval of the Appointment of an Excutive Director (Chang, Hyun Guk) | Approved as Proposed | 
            
                | 3 | Appointment of two Independent Directors | Approved as Proposed | 
            
                | 3-1 | Approval of the Appointment of an Independent Director (Kim, Young Ho) | Approved as Proposed | 
            
                | 3-2 | Approval of the Appointment of an Independent Director (Lee, Seon Hye) | Approved as Proposed | 
            
                | 4 | Ratification of Stock Option Grant approved by the resolution of the board of directors | Approved as Proposed | 
            
                | 5 | Revision of executive severance pay regulations | Approved as Proposed | 
            
                | 6 | Approval of the Ceiling Amount of the Remuneration for directors | Approved as Proposed | 
            
                | 7 | Approval of the Ceiling Amount of the Remuneration for an Auditor | Approved as Proposed | 
            
        
        
            
                
                
                
            
            
            
                | 22nd Annual General Shareholders' Meeting(Thursday, March 31, 2022) | Outcome | 
            
            
            
                | 1 | Approval of Financial Statements for the 22nd Fiscal Year(2021.01.01~2021.12.31) | Approved as Proposed | 
            
                | 2 | Amendments to the Articles of Incorporation | Approved as Proposed | 
            
                | 3 | Amendments to the Articles of Bonus payment rules of Executive | Approved as Proposed | 
            
                | 4 | Approval of the Appointment of an Independent Director(Han, Seung Soo) | Approved as Proposed | 
            
                | 5 | Approval of the Ceiling Amount of the Remuneration for Directors | Approved as Proposed | 
            
                | 6 | Approval of the Ceiling Amount of the Remuneration for an Auditor | Approved as Proposed | 
            
        
        
            
                
                
                
            
            
            
                | Extraordinary Shareholders’ Meeting(Thursday, October 22, 2021) | Outcome | 
            
            
            
                | 1 | Stock Option Grant | Approved as Proposed | 
            
        
        
            
                
                
                
            
            
            
                | 21st Annual General Shareholders' Meeting(Thursday, March 25, 2021) | Outcome | 
            
            
            
                | 1 | Approval of Financial Statements for the 21st Fiscal Year(2020.01.01~2020.12.31) | Approved as Proposed | 
            
                | 2 | Stock Option Grant | Approved as Proposed | 
            
                | 2-1 | New Stock Option Grant | Approved as Proposed | 
            
                | 2-2 | Ratification of Stock Option Grant | Approved as Proposed | 
            
                | 3 | Amendments to the Articles of Incorporation | Approved as Proposed | 
            
                | 4 | Approval of the Appointment of an Executive Director (Park, Kwan Ho) | Approved as Proposed | 
            
                | 5 | Approval of the Appointment of an Auditor (Woo, Jong Sik) | Approved as Proposed | 
            
                | 6 | Approval of the Ceiling Amount of the Remuneration for Directors | Approved as Proposed | 
            
                | 7 | Approval of the Ceiling Amount of the Remuneration for an Auditor | Approved as Proposed | 
            
        
        
            
                
                
                
            
            
            
                | 20th Annual General Shareholders’ Meeting(Friday, March 27, 2020) | Outcome | 
            
            
            
                | 1 | Approval of Financial Statements for the 20th Fiscal Year(2019.01.01~2019.12.31) | Approved as Proposed | 
            
                | 2 | Approval of the Appointment of an Executive Director (Chang, Hyun Guk) | Approved as Proposed | 
            
                | 3 | Ratification of Stock Option Grant | Approved as Proposed | 
            
                | 4 | Approval of the Ceiling Amount of the Remuneration for Directors | Approved as Proposed | 
            
                | 5 | Approval of the Ceiling Amount of the Remuneration for an Auditor | Approved as Proposed | 
            
        
        
            
                
                
                
            
            
            
                | 19th Annual General Shareholders’ Meeting(Friday, March 29, 2019) | Outcome | 
            
            
            
                | 1 | Approval of Financial Statements for the 19th Fiscal Year(2018.01.01~2018.12.31) | Approved as Proposed | 
            
                | 2 | Amendments to the Articles of Incorporation | Approved as Proposed | 
            
                | 3 | Approval of the Appointment of an Independent Director(Park, Jin Won) | Approved as Proposed | 
            
                | 4 | Ratification of Stock Option Grant | Approved as Proposed | 
            
                | 5 | Approval of the Ceiling Amount of the Remuneration for Directors | Approved as Proposed | 
            
                | 6 | Approval of the Ceiling Amount of the Remuneration for an Auditor | Approved as Proposed | 
            
        
        
            
                
                
                
            
            
            
                | 18th Annual General Shareholders’ Meeting(Friday, March 23, 2018) | Outcome | 
            
            
            
                | 1 | Approval of Financial Statements for the 18th Fiscal Year | Approved as Proposed | 
            
                | 2 | Approval of the Appointment of an Executive Director (Park, Kwan Ho) | Approved as Proposed | 
            
                | 3 | Approval of the Appointment of an Auditor (Woo, Jong Sik) | Approved as Proposed | 
            
                | 4 | Ratification of Stock Option Grant | Approved as Proposed | 
            
                | 5 | Approval of the Ceiling Amount of the Remuneration for Directors | Approved as Proposed | 
            
                | 6 | Approval of the Ceiling Amount of the Remuneration for an Auditor | Approved as Proposed | 
            
        
        
            
                
                
                
            
            
            
                | 2017 Extraordinary Shareholder's Meeting (Thursday, May 18, 2017) | Outcome | 
            
            
            
                | 1 | Approval of Spin-Off Agreement | Approved as Proposed | 
            
        
        
            
                
                
                
            
            
            
                | 17th Annual General Shareholders’ Meeting(Friday, March 24, 2017) | Outcome | 
            
            
            
                | 1 | Approval of Financial Statements for the 17th Fiscal Year | Approved as Proposed | 
            
                | 2 | Approval of the Appointment of an Executive Director | Approved as Proposed | 
            
                | 3 | Stock Option Grant | Approved as Proposed | 
            
                | 3-1 | New Stock Option Grant | Approved as Proposed | 
            
                | 3-2 | Ratification of Stock Option Grant | Approved as Proposed | 
            
                | 4 | Approval of the Ceiling Amount of the Remuneration for Directors | Approved as Proposed | 
            
                | 5 | Approval of the Ceiling Amount of the Remuneration for an Auditor | Approved as Proposed | 
            
        
        
            
                
                
                
            
            
            
                | 16th Annual General Shareholders’ Meeting(Wednesday, March 30, 2016) | Outcome | 
            
            
            
                | 1 | Approval of Financial Statements for the 16th Fiscal Year | Approved as Proposed | 
            
                | 2 | Amendments to the Articles of Incorporation | Approved as Proposed | 
            
                | 3 | Approval of the Appointment of an Executive Director | Approved as Proposed | 
            
                | 4 | Approval of the Appointment of an Independent Director | Approved as Proposed | 
            
                | 5 | Approval of the Ceiling Amount of the Remuneration for Directors | Approved as Proposed | 
            
                | 6 | Approval of the Ceiling Amount of the Remuneration for an Auditor | Approved as Proposed | 
            
        
        
            
                
                
                
            
            
            
                | 15th Annual General Shareholders’ Meeting(Friday, March 27, 2015) | Outcome | 
            
            
            
                | 1 | Approval of Financial Statements for the 15th Fiscal Year | Approved as Proposed | 
            
                | 2 | Approval of the Appointment of Executive Directors | Approved as Proposed | 
            
                | 2-1 | Election of an Executive Director (Park, Kwan Ho) | Approved as Proposed | 
            
                | 2-2 | Election of an Executive Director (Ryu, Ki Deok) | Approved as Proposed | 
            
                | 3 | Approval of the Appointment of an Auditor (Woo, Jong Sik) | Approved as Proposed | 
            
                | 4 | Approval of the Ceiling Amount of the Remuneration for Directors | Approved as Proposed | 
            
                | 5 | Approval of the Ceiling Amount of the Remuneration for an Auditor | Approved as Proposed | 
            
        
        
            
                
                
                
            
            
            
                | 14th Annual General Shareholders’ Meeting(Friday, March 28, 2014) | Outcome | 
            
            
            
                | 1 | Approval of Financial Statements for the 14th Fiscal Year | Approved as Proposed | 
            
                | 2 | Ratification of Stock Option Grant | Approved as Proposed | 
            
                | 3 | Approval of the Appointment of an Executive Director (Chang, Hyun Guk) | Approved as Proposed | 
            
                | 4 | Approval of the Ceiling Amount of the Remuneration for Directors | Approved as Proposed | 
            
                | 5 | Approval of the Ceiling Amount of the Remuneration for an Auditor | Approved as Proposed | 
            
        
        
            
                
                
                
            
            
            
                | 13th Annual General Shareholders’ Meeting(Friday, March 29, 2013) | Outcome | 
            
            
            
                | 1 | Approval of Financial Statements for the 13th Fiscal Year | Approved as Proposed | 
            
                | 2 | Amendments to the Articles of Incorporation | Approved as Proposed | 
            
                | 3 | Approval of the Appointment of Independent Directors | Approved as Proposed | 
            
                | 3-1 | Election of an Independent Director(Park, Jin Won) | Approved as Proposed | 
            
                | 3-2 | Election of an Independent Director(Kim, Hyung Chul) | Approved as Proposed | 
            
                | 4 | Stock Option Grant | Approved as Proposed | 
            
                | 4-1 | New Stock Option Grant | Approved as Proposed | 
            
                | 4-2 | Ratification of Stock Option Grant | Approved as Proposed | 
            
                | 5 | Approval of the Ceiling Amount of the Remuneration for Directors | Approved as Proposed | 
            
                | 6 | Approval of the Ceiling Amount of the Remuneration for an Auditor | Approved as Proposed | 
            
        
        
            
                
                
                
            
            
            
                | 12th Annual General Shareholders’ Meeting(Friday, March 23, 2012) | Outcome | 
            
            
            
                | 1 | Approval of Financial Statements for the 12th Fiscal Year | Approved as Proposed | 
            
                | 2 | Amendments to the Articles of Incorporation | Approved as Proposed | 
            
                | 3 | Approval of the Appointment of an Executive Director | Approved as Proposed | 
            
                | 4 | Approval of the Appointment of an Auditor | Approved as Proposed | 
            
                | 5 | Ratification of Stock Option Grant | Approved as Proposed | 
            
                | 6 | Approval of the Ceiling Amount of the Remuneration for Directors | Approved as Proposed | 
            
                | 7 | Approval of the Ceiling Amount of the Remuneration for an Auditor | Approved as Proposed | 
            
        
        
            
                
                
                
            
            
            
                | 11th Annual General Shareholders’ Meeting(Thursday, March 31, 2011) | Outcome | 
            
            
            
                | 1 | Approval of Financial Statements for the 11th Fiscal Year | Approved as Proposed | 
            
                | 2 | Amendments to the Articles of Incorporation | Approved as Proposed | 
            
                | 3 | Approval of the Appointment of Independent Non-Executive Directors | Approved as Proposed | 
            
                | 3-1 | Election of an Independent Non-Executive Director(Kim, Hwa Seon) | Approved as Proposed | 
            
                | 3-2 | Election of an Independent Non-Executive Director(Kim, Min) | Approved as Proposed | 
            
                | 4 | Ratification of Stock Option Grant | Approved as Proposed | 
            
                | 5 | Approval of the Ceiling Amount of the Remuneration for Directors | Approved as Proposed | 
            
                | 6 | Approval of the Ceiling Amount of the Remuneration for an Auditor | Approved as Proposed | 
            
        
        
            
                
                
                
            
            
            
                | 10th Annual General Shareholders’ Meeting(Wednesday, March 31, 2010) | Outcome | 
            
            
            
                | 1 | Approval of Financial Statements for the 10th Fiscal Year | Approved as Proposed | 
            
                | 2 | Amendments to the Articles of Incorporation | Approved as Proposed | 
            
                | 3 | Approval of the Appointment of an Executive Director | Approved as Proposed | 
            
                | 3-1 | Election of an Executive Director (Seo, Soo Kiel) | Approved as Proposed | 
            
                | 4 | Approval of the Appointment of Independent Non-Executive Directors | Approved as Proposed | 
            
                | 4-1 | Election of an Independent Non-Executive Director(Park, Jin Won) | Approved as Proposed | 
            
                | 4-2 | Election of an Independent Non-Executive Director(Kim, Hyung Chul) | Approved as Proposed | 
            
                | 5 | Ratification of Stock Option Grant | Approved as Proposed | 
            
                | 6 | Approval of the Ceiling Amount of the Remuneration for Executive Directors | Approved as Proposed | 
            
                | 7 | Approval of the Ceiling Amount of the Remuneration for Independent Directors | Approved as amended | 
            
                | 8 | Approval of the Ceiling Amount of the Remuneration for an Auditor | Approved as amended |