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An Baijie contributed to this story.

An Allergan Aesthetics employee checks a customer at an experience center in Chengdu, capital of Sichuan province. [Photo provided to China Daily]

An initial investigation showed that the cause of the accident was a gas pour-out in the mine which left the miners without oxygen.

An Aerolineas Argentinas spokesperson said: "We have a pivotal role in the (supply) of critical supplies the country needs to fight this global health crisis."

An expert on China's economy, Prasad said he has seen positive signs in the country's economic transition and reforms in recent years. "Over the past year or so while the economy has done quite well, the overall credit growth, no matter how you measure it, has been coming down. This is a positive thing for the financial system," he said.