Balance Sheet (Separate)
                    (Unit: million KRW)
                | Section | 2024 | 2023 | 2022 | 2021 | 2020 | 
|---|---|---|---|---|---|
| Assets | 530,860 | 529,525 | 531,890 | 566,959 | 463,458 | 
| Current Assets | 376,939 | 367,243 | 379,560 | 414,837 | 286,630 | 
| (Cash and Financial Instruments) | 74,110 | 67,328 | 70,954 | 67,700 | 48,795 | 
| (Accounts Receivable) | 143,921 | 167,654 | 182,534 | 184,620 | 136,578 | 
| (Inventory) | 149,802 | 125,473 | 120,686 | 154,421 | 81,690 | 
| Non-current Assets | 153,921 | 162,282 | 152,330 | 152,122 | 176,828 | 
| (Investment Property) | 0 | 0 | 0 | 0 | 0 | 
| (Tangible Assets) | 129,836 | 130,949 | 129,485 | 134,809 | 140,627 | 
| Liabilities | 154,751 | 174,724 | 201,053 | 251,038 | 238,481 | 
| Current Liabilities | 151,878 | 172,001 | 199,225 | 249,127 | 211,210 | 
| (Borrowings) | 25,000 | 30,000 | 75,000 | 84,500 | 100,500 | 
| Non-current Liabilities | 2,873 | 2,723 | 1,828 | 1,912 | 27,271 | 
| (Borrowings) | 0 | 0 | 0 | 0 | 0 | 
| Equity | 376,109 | 354,801 | 330,837 | 315,921 | 224,977 | 
| (Capital Stock) | 30,000 | 30,000 | 30,000 | 30,000 | 30,000 | 
| Total Liabilities and Equity | 530,860 | 529,525 | 531,890 | 566,959 | 463,458 |