The last day to file the appeal is **15 September 2026**.

1. **Period:** Because the judgment was served on the company in Greece, the appeal period is 30 days from service (Greek Code of Civil Procedure, **Article 518(1)**). The publication date does not start this period.
2. **Start:** The day of service, 16 July, is excluded. Day 1 is 17 July (**Article 144(1)**).
3. **July:** 17–31 July counts as **15 days** (**Articles 144(1) and 145(1)**).
4. **August:** 1–31 August is excluded from the appeal period (**Article 147(2)**).
5. **September:** The remaining **15 days** run from 1 through 15 September. The period therefore expires on 15 September, a Tuesday (**Articles 145(1) and 147(2)**).

RESULT: deadline = 2026-09-15; rule = Article 518(1), read with Articles 144(1), 145(1), and 147(2) of the Greek Code of Civil Procedure