Taiwan English News reports:
An explosion at a pharmaceutical factory in Taoyuan City left two injured and caused a fire early this afternoon, December 20.
People as far as Tamsui District in New Taipei City reported hearing the massive blast shortly after noon. Immediately after the blast, thick black smoke could be seen pouring out of the SCI Pharmtech factory. (snip)
The cause of the explosion is currently under investigation.
Liberty Times reported that the factory produces hydroxychloroquine APIs [active pharmaceutical ingredients - TL], and is the world’s second largest HCQ raw material supplier.
https://www.americanthinker.com/blog/2020/12/unexplained_explosion_and_fire_destroy_worlds_second_largest_pharmaceutical_factory_producing_precursors_for_hydroxychloroquine_.html