I double checked on Wiki. There are two founders -- husband and wife. While both have Turkish heritage, only one is a Turkish immigrant. To be fair, I agree with the overall sentiment of your comment!
Husband: Uğur Şahin was born in Turkey, and immigrated to Germany at age 4
Wife: Özlem Türeci was born in Germany. Her parents immigrated to Germany from Turkey.
If anyone is interested to learn more about these amazing scientists, I recommend that you watch the YouTube video where they are interviewed by CEO Mathias Döpfner for one hour after winning the Axel Springer Award in 2021: https://www.youtube.com/watch?v=B4u4JzAZQoc
<< The Vaccine: Inside the Race to Conquer the COVID-19 Pandemic
Author: Joe Miller with Dr. Özlem Türeci and Dr. Ugur Sahin >>
Wiki: https://en.wikipedia.org/wiki/Fosun_Pharma#COVID-19
I cannot find any references via Google that prove Fosun Pharma has exclusive rights for Taiwan. If anyone has any specifics, please reply. Honestly, I doubt it, as Fosun in a mainland Chinese corporation and China was actively blocking Taiwan out of international COVID efforts efforts vis-a-vis WHO (World Health Org).
Latest: https://www.info.gov.hk/gia/general/202110/16/P2021101600482...
(they keep falsely claiming Baxter to be a city in Germany. It's a company that manufactures for BioNTech, not a city. https://www.baxter.com/)
<< Quality
60. Where is the Comirnaty vaccine supplied to Hong Kong produced? How to ensure the quality of vaccines supplied to Hong Kong?
According to the information provided by Fosun Pharma, the Comirnaty vaccines for Hong Kong will be produced in Germany. Click here to read the package insert.
The vaccine manufacturer must comply with the Pharmaceutical Inspection Co-operation Scheme (PIC/S) Good Manufacturing Practice (GMP) standards, or equivalent. The imported vaccine also has a Certificate of Analysis to prove that it meets the specifications. >>
https://investors.biontech.de/news-releases/news-release-det... (2020)
TW CDC PR: https://www.cdc.gov.tw/En/Bulletin/List/7tUXjTBf6paRvrhEl-mr...
To be fair, Taiwan (Officially the Republic of China) also claims that it is a part of China and is in fact the rightful rulers of China. The Kuomintang withdrew to Taiwan after losing control of mainland China to Mao and the Communists. I'm not super up to date on the latest claims between China and Taiwan, but Taiwan has never recognized officially that they do not rightfully control China.
Hence the donations
It's Germany and Turkey.
In a press release earlier this year[0], BioNTech described their relationship with Pfizer and they listed the countries it covers. Also, for China they have another company instead of Pfizer.
Why Germany and Turkey, you may ask? Well, the inventors and founders of the company are Turkish immigrants to Germany. So they are able to give the vaccine on special terms to the country they came from and the country that made them. To be honest, Turkey is extremely lucky that they feel like helping out the motherland. Thanks to them, Turkey has abundance of the vaccine and probably at a good price.
[0] https://investors.biontech.de/news-releases/news-release-det...