Open window in Q posts is around the 31 or 32 story counting down from 38 at the top. There's a chemical manufacturer's office on 31F.
http:// www.contractresearchmap.com/places/shanghai
http:// www.amino-chem.org/
Who were they supplying chemicals to and for what purpose? Initially my thoughts lead to these
>Where does fentanyl come from? China is primary source in U.S., and much is ending up in Ohio
http:// www.news-herald.com/article/HR/20170207/NEWS/170209584
>SHANGHAI — President Trump is looking to President Xi Jinping to “do something” about America’s opioid epidemic, for which he blames China.
https:// www.nytimes.com/2017/11/08/world/asia/china-opioid-trump.html