Exhibit 21.1
SPINNOVA PLC
List of Subsidiaries
As of June 30, 2026, the subsidiaries of Spinnova Plc, are listed as follows:
| Subsidiary | Percentage Ownership | Place of Incorporation | ||||
| Spinnova Holdings Oy | 100 | % | Finland | |||
| Woodspin Oy | 100 | % | Finland | |||
| Spinnova Refining Oy | 100 | % | Finland | |||
| Respin Oy | 50 | % | Finland | |||