BioNTech SE and Pfizer Inc.’s Covid-19 vaccine in “Greater China" says it’s willing to supply Taiwan, after the contested island suggested Beijing blocked it from securing the shot.Speaking in an interview from Shanghai, Guo Guangchang, the chairman of Fosun International Ltd. -- whose medical arm has the deal with Germany’s BioNTech -- said the company “has the responsibility, duty and willingness to offer the best vaccine to the Greater China region, including Taiwan." Guo said he hopes this “desire can soon be realized," without elaborating further.Also Read | Inside Mumbai’s new extortion economyThe blockbuster shot is the latest source of tension between China and Taiwan, which Beijing claims is part of its territory but which has its.