The action, which falls under a strict new Beijing-imposed national security law imposed on Hong Kong, comes in response to an unauthorized, independent primary held in July.
Beijing says it has vaccinated more than 73,000 people in the two days since China's first domestic coronavirus vaccine was approved for commercial use.
The European Union concluded the deal with China after seven years of negotiations. Last week, the incoming administration of President-elect Joe Biden had urged the EU to wait.
Zhang Zhan was detained in May after reporting on the coronavirus response in China. Now, she faces years in prison as officials try to silence reports that differ from their own.
The medevac involved a network of ships, helicopters and planes spanning thousands of miles on the frigid continent. Australian officials called it "an outstanding success."
China's State Administration for Market Regulation is focusing on allegations that Alibaba forces merchants on its website to sell only on its platform.
The successful completion of the Chang'e-5 mission makes China only the third country to have returned soil and rock samples from the surface of the moon.
After years of surveys and calculations, the countries said Tuesday that the world's highest peak now stands about 29,032 feet above sea level — more than 2 feet taller than the previous consensus.
The study by the National Academies of Sciences comes after dozens of U.S. diplomats in Cuba and China complained of migraines, dizziness and memory loss.