There are much more level 4 Bio-laboratories in the world s than we think. Taiwan has two and just upgraded. Australia has four. Apparently, there are 400 labs that are funded by DOD money.
Biosafety Level - List of BSL-4 Facilities

Terrifying Covid LAB LEAK feared to have infected dozens in Taiwan in ‘chilling echo of Wuhan’
Another site shows that there are 10 Biolabs in Taiwan