| Schedule of intangible assets |
|
| Schedule of intangible assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
December 31, 2025 |
|
| |
|
|
|
Acquisition
price |
|
|
Accumulated
amortization |
|
|
Book
amount |
|
| |
|
|
|
(In thousands of Korean won) |
|
| Software |
|
₩ |
|
|
10,564 |
|
|
|
(9,537 |
) |
|
|
1,027 |
|
| Patents |
|
|
|
|
349,730 |
|
|
|
(346,901 |
) |
|
|
2,829 |
|
| Brand |
|
|
|
|
10,585 |
|
|
|
(9,199 |
) |
|
|
1,386 |
|
| Total |
|
₩ |
|
|
370,879 |
|
|
|
(365,637 |
) |
|
|
5,242 |
|
| |
|
|
|
December 31, 2024 |
|
| |
|
|
|
Cost |
|
|
Accumulated
amortization |
|
|
Carrying
amount |
|
| |
|
|
|
(In thousands of Korean won) |
|
| Software |
|
₩ |
|
|
10,564 |
|
|
|
(9,024 |
) |
|
|
1,540 |
|
| Patents |
|
|
|
|
349,730 |
|
|
|
(345,264 |
) |
|
|
4,466 |
|
| Brand |
|
|
|
|
9,048 |
|
|
|
(9,045 |
) |
|
|
3 |
|
| Total |
|
₩ |
|
|
369,342 |
|
|
|
(363,333 |
) |
|
|
6,009 |
|
|
| Schedule of changes on intangible assets |
| Schedule of changes on intangible assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
Six-month period ended June 30, 2026 |
|
| |
|
|
|
Software |
|
|
Patents |
|
|
Brand |
|
|
Total |
|
| |
|
|
|
(In thousands of Korean won) |
|
| Beginning balance |
|
₩ |
|
|
1,027 |
|
|
|
2,829 |
|
|
|
1,386 |
|
|
|
5,242 |
|
| Acquisitions |
|
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
| Amortization |
|
|
|
|
(256 |
) |
|
|
(757 |
) |
|
|
(154 |
) |
|
|
(1,167 |
) |
| Ending balance |
|
₩ |
|
|
771 |
|
|
|
2,072 |
|
|
|
1,232 |
|
|
|
4,075 |
|
| |
|
|
|
Six-month period ended June 30, 2025 |
|
| |
|
|
|
Software |
|
|
Patents |
|
|
Brand |
|
|
Total |
|
| |
|
|
|
(In thousands of Korean won) |
|
| Beginning balance |
|
₩ |
|
|
1,540 |
|
|
|
4,466 |
|
|
|
3 |
|
|
|
6,009 |
|
| Acquisitions |
|
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
|
|
- |
|
| Amortization |
|
|
|
|
(256 |
) |
|
|
(880 |
) |
|
|
- |
|
|
|
(1,136 |
) |
| Ending balance |
|
₩ |
|
|
1,284 |
|
|
|
3,586 |
|
|
|
3 |
|
|
|
4,873 |
|
|
| Schedule of changes on intangible assets |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
2025 |
|
| |
|
|
|
Software |
|
|
Patents |
|
|
Brand |
|
|
Total |
|
| |
|
|
|
(In thousands of Korean won) |
|
| Beginning balance |
|
₩ |
|
|
1,540 |
|
|
|
4,466 |
|
|
|
3 |
|
|
|
6,009 |
|
| Acquisitions |
|
|
|
|
- |
|
|
|
- |
|
|
|
1,536 |
|
|
|
1,536 |
|
| Amortization |
|
|
|
|
(513 |
) |
|
|
(1,637 |
) |
|
|
(153 |
) |
|
|
(2,303 |
) |
| Ending balance |
|
₩ |
|
|
1,027 |
|
|
|
2,829 |
|
|
|
1,386 |
|
|
|
5,242 |
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
2024 |
|
| |
|
|
|
Software |
|
|
Patents |
|
|
Brand |
|
|
Total |
|
| |
|
|
|
(In thousands of Korean won) |
|
| Beginning balance |
|
₩ |
|
|
2,052 |
|
|
|
6,714 |
|
|
|
3 |
|
|
|
8,769 |
|
| Amortization |
|
|
|
|
(512 |
) |
|
|
(2,248 |
) |
|
|
- |
|
|
|
(2,760 |
) |
| Ending balance |
|
₩ |
|
|
1,540 |
|
|
|
4,466 |
|
|
|
3 |
|
|
|
6,009 |
|
|
| Schedule of classification of amortization expenses |
| Schedule of classification of amortization expenses |
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
Six-month
period ended
June 30,
2026 |
|
|
Six-month
period ended
June 30,
2025 |
|
| |
|
|
|
(In thousands of Korean won) |
|
| Selling, general and administrative expenses |
|
₩ |
|
|
256 |
|
|
|
256 |
|
| Research and development costs |
|
|
|
|
911 |
|
|
|
880 |
|
| Total |
|
₩ |
|
|
1,167 |
|
|
|
1,136 |
|
|
|