May I ask if you fly from Hong Kong to Kaohsiung, do you use the Taiwan Pass and Taiwan Entry Permit to board the plane? Or use a passport? When buying a plane ticket, I bought it with a Tai

Both the Taiwan Pass and the Taiwan Entry Permit are required!

According to our experience, we always use the Taiwan Pass to buy air tickets

Check-in with the entry pass.

Citizens of the mainland use the Taiwan Pass and the Taiwan Entry Permit. If they are not mainland citizens, they need a passport to join the Taiwan Permit.

Both a passport and a pass are required. You need both a Chinese passport and a pass for a Hong Kong ID card.

Passport Oh! It's safer to bring both.