| Clue | Source | Date |
|---|---|---|
| Town in South Korea associated with the petrochemical industry (5) | ||
| Metropolitan city in South Korea on the Taehwa River | Mirror Quiz | 25 Mar 2025 |
| Metropolitan city in South Korea on the Taehwa River | Mirror Quiz | 10 Oct 2024 |
| City in South Korea noted for its shipyard and oil refinery |