Well my wife is from the Soviet Union, you complete idiot, while you're some dork from San Francisco trying to google how it "really" was. The USSR doesn't exist "right this second", nor did any of those companies you listed when it did, certainly not privately. They're natural resource industries that were publicly owned during the communist period, that were sold off to gangsters and oligarchs after the regime collapsed who either stole or bought off "shares" that former employees had.
And no, there wasn't a "lion's share" of farming, they were confiscated and collectivized for decades, and I know this because my wife's grandfather was one of them who got raided and sent to the gulag when he was 7, and spent the following 25 years in Siberia while the country he was dragged from was starved to death because their collective farms were such a miserable failure. After the abysmal failure of "collectivized farms", they allowed personal "farms" on small plots of land, which we would call just having a fucking garden. A limit of 1 acre or smaller is your example "corporatism"? WTF?
