As a performance bond for construction services for a part of construction contracts, the Company retains security deposits. In the event of any defects that the supplier fails to eliminate pursuant to such a bond, the Group may retain the security deposit and use it to repair such defects.
| 31.12.2021 | 31.12.2020 | |
| Current value of the estimated amounts due for fire glass production technology | 9,779 | 0 |
| Building security deposits | 1,565 | 1,385 |
| Total | 11,344 | 1,385 |
