A deputy director at Russia's ministry of energy confirmed to me he met with Igor Danchenko and a journalist several days before the first memo of the dossier. dailycaller.com/2020/08/07/igo…
Vorontsov posted on Facebook that he met with Danchenko and the Russian official ahead of the SPIEF forum.
Danchenko's name tag listed his affiliation as Sidar Global Advisers, but the owner of that firm tells me they didn't send Danchenko there.