Answered by Borut | Jan. 06, 2025 03:13
No, those two itineraries do not interfere with each other at all.
Transit number 1: Country X - Beijing - South Korea - accomplished
Transit number 2 (totally unrelated): Sout Korea - Guangzhou - Country X
The first thing upon your landing in Beijing will be to approach 24/240 hour visa free transit counter where you will apply for a temporary entry permit by presenting your flight tickets and your hotel booking (if you plan to spend a night in the hotel). This application is free of any charge. After your permit is granted, you will head to the immigration and then toward the city to enjoy your time on your own.
Based on your wording, I can assume that your transit in Guangzhou will be a short one. If that is the case, you do not have to perform any formality and you do not have to fill out any forms. You will just walk from one to the other gate and spend your time in the transit area of Guangzhou airport.
In case if you have a transit of this kind:
South Korea - Beijing - Guangzhou - Country X
You should not bother yourself at all. If the total transit time, counted from your scheduled landing in Beijing until your scheduled departure from Guangzhou is longer shorter than 24 hours, you will be eligible for 24 hour visa free transit and you will just repeat the procedure with a temporary entry permit from the transit number one and if your transit time is longer than 24 hours, you will be eligible for 240 hour visa free transit. 240 hour visa free transit allows you to cross the provincial borders. Please, just proceed with absolute peace of mind.