The appeal deadline is **15 September 2026**.

1. **The applicable appeal period is 30 days.** The judgment was served on the company in Greece, so the appeal period is 30 days under Code of Civil Procedure (ΚΠολΔ) **Article 518(1)**.

2. **The count starts the day after service.** Service took place on 16 July 2026. Under ΚΠολΔ **Article 144(1)**, the day of service is excluded, so the first day is 17 July.

3. **The period pauses during August.** ΚΠολΔ **Article 147(2)** suspends the appeal period under Article 518 from 1 to 31 August. The 15 days from 17 through 31 July therefore count; the count resumes on 1 September with 15 days remaining.

4. **The final day is 15 September.** Counting 1–15 September gives the remaining 15 days. That date is a Tuesday, so the next-working-day extension does not apply under ΚΠολΔ **Article 144(1)**.

RESULT: deadline = 2026-09-15; rule = Article 518(1)