Hello!
You wrote:
"I - I: There are nine counters to handle the transfer and transit service in the central part of the international arrival concourse. After arranging the boarding check, take the dedicated elevator up to the international CIQ Area, awaiting departure (minimum time duration about 29 minutes)."

Does this mean I don't have to go through immigration/customs to make an international/international transfer? Will the transfer desks issue boarding passes and recheck my bags for me? There is no reliable information on how to do this anywhere on the Internet. Do I have to pick up my checked bags? It seems silly that such a modern airport would have a system such as this.