把前一段看過的翻出來了:
https://www.nytimes.com/2020/03/13/business/masks-china-coronavirus.html
載錄幾段:
China made half the world’s masks before the coronavirus emerged there, and it has expanded production nearly 12-fold since then. But it has claimed mask factory output for itself. Purchases and donations also brought China a big chunk of the world’s supply from elsewhere.
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In a statement, Minnesota-based 3M said most of the masks it made at its factory in Shanghai had been sold within China even before the outbreak. It declined to comment on when exports from China might resume.
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Other manufacturers say the Chinese government is still claiming all the masks that their factories in the country make. “Mask exports are still not authorized, but we are following the situation every day,” said Guillaume Laverdure, chief operating officer of Medicom, a Canadian manufacturer that makes three million masks a day at its Shanghai factory.
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On Jan. 30, the last day for which data is available, China managed to import 20 million respirators and surgical masks in just 24 hours. Through February, civic-minded entrepreneurs and aid groups visited pharmacies in affluent countries and emerging markets alike, buying masks in bulk to send to China.
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Supplies from a five-story building in southwestern Shanghai could help alleviate the shortage. The huge factory is one of the most important sites manufacturing N95 respirators for 3M.
Standing at the factory fence, which was topped with six strands of electrified wire, a worker who gave only his family name, Zhou, said the masks had been helping China fight the virus.
“They’re being sent,” he said with pride, “to hospitals in Wuhan.”