Segment information (Details 3) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
|
| Customer D | |||
| Customers accounting for more than 5% of the Group's revenue | 6 | 0 | 0 |
| Customer E | |||
| Customers accounting for more than 5% of the Group's revenue | 5 | 0 | 0 |
| Customer C | |||
| Customers accounting for more than 5% of the Group's revenue | 9 | 0 | 0 |
| Customer B | |||
| Customers accounting for more than 5% of the Group's revenue | 9 | 14 | 18 |
| Customer A | |||
| Customers accounting for more than 5% of the Group's revenue | 13 | 10 | 9 |
| Customer F | |||
| Customers accounting for more than 5% of the Group's revenue | 5 | 0 | 0 |
| Customer G | |||
| Customers accounting for more than 5% of the Group's revenue | 0 | 7 | 0 |
| Customer H | |||
| Customers accounting for more than 5% of the Group's revenue | 0 | 5 | 0 |
| Customer I | |||
| Customers accounting for more than 5% of the Group's revenue | 0 | 5 | 6 |