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

1. **Applicable period — Article 518(1) of the Greek Code of Civil Procedure:** Because the judgment was served and the company is seated in Greece, the appeal period is 30 days from service. The service on 16 July controls the count, rather than the publication on 2 July.
2. **Start of count — Article 144(1):** The day of service is excluded. Counting starts on 17 July. The 15 days from 17 through 31 July use half of the appeal period.
3. **August exclusion — Article 147(2):** The period from 1 through 31 August is not counted for an appeal under Article 518(1). Fifteen days therefore remain on 1 September.
4. **Expiry — Articles 518(1) and 147(2):** The remaining 15 days run from 1 through **15 September**. The 15th is a Tuesday, so the deadline is that day.

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