Working in Korea requires a business trip to the Philippines. How do I apply for a visa to the Philippines?

General information, passport, photos, proof of deposit.

Let the Philippine company send you an invitation letter and sign a business contract. If it can be completed within one month, a tourist visa will do.

You can apply directly at the Philippine Embassy in Korea, and you don't need to go back to China, but you need information from the local embassy or consulate.