今年4月，FDA曾发出公告，宣布46家位于 的口罩工厂获得紧急使用授权(EUA)，除3M 、Creative Concepts等外资企业外，其余的企业几乎为 本土生厂商，包括奥美医疗、比亚迪、中鼎检测等。

In April this year, FDA issued an announcement announcing that 46 mask factories in China have obtained emergency use authorization (EUA). Except for foreign-funded enterprises such as 3M China and creative concepts, the rest are almost local manufacturers in China, including Ogilvy medical, BYD and Zhongding testing.