Think this may be important, though not sure exactly how yet.
https://mobile.nytimes.com/2018/07/03/business/glencore-subpoena-mining-commodities.html
Glencorp is Mark Rich's company
Mark Rich's assets were eventually taken over by Oleg Deripaska
Deripaska was in contact with Christopher Steele, Adam Waldman
Deripaska worked with FBI on Iran rescue
Glencorp cut ties with Deripaska back in April after US hit him with sanctions
Why does Deripaska keep showing up?
What was his role?