BioNTech said it is working with Shanghai Fosun Pharmaceutical (600196.SS) to deliver the shots to greater China, with availability expected in Beijing, Shanghai, Guangzhou, Shenyang and Chengdu.
China would need to approve expanding access beyond the about 20,000 German nationals, the source said on Wednesday.
"Most of Chinese here got the BioNTech vaccine, the vaccine that was first available.
SinoVac vaccine was not available in Europe," a first-generation Chinese expatriate who has lived in Europe for more than a decade told Reuters.
The expatriate, who asked to remain anonymous to protect their family in China, said that the government there might only make BioNTech shots available to Chinese nationals if it came to the worst-case scenario.