The main 10 most profound ports on the planet, in light of their profundity in meters, are:
1. Busan Port, South Korea - Profundity: 17.6 meters
2. Shanghai Port, China - Profundity: 17.5 meters
3. Ningbo-Zhoushan Port, China - Profundity: 16 meters
4. Qingdao Port, China - Profundity: 15.5 meters
5. Rotterdam Port, Netherlands - Profundity: 15.5 meters
6. Tianjin Port, China - Profundity: 15 meters
7. Guangzhou Port, China - Profundity: 15 meters
8. Jebel Ali Port, Joined Bedouin Emirates - Profundity: 15 meters
9. Port of Singapore, Singapore - Profundity: 15 meters
10. Hamburg Port, Germany - Profundity: 14.5 meters
Kindly note that these profundities are likely to change due to digging and other port support exercises.