Searching the CDC in Taiwan, I was unable to find any press releases announcing they bought vaccines from Fosun Pharma. Everything I could find said they only received BioNTech vaccines when they were donated. Please correct me if wrong. I assume "Taiwan region" is simply something to satisfy the PRC gov't (CCP) which believes Taiwan is a part of its country and governed by PRC.
TW CDC PR: https://www.cdc.gov.tw/En/Bulletin/List/7tUXjTBf6paRvrhEl-mr...