Ah, the Americans!
FPP makes wild claims and mistakes brands by manufacturers.
They were sold rolls of supposedly Ukraine films from Svema.
They forgot to check that the Svema factory has been in ruins since the 90s!
And Kentmere today is a brand owned by Harman.
The Kentmere factory had to be abandoned due to health and safety concerns.
"Our FPP EDU bw 400 film is a black and white made by Kentmere."
It just means they bought on the cheap some bulk rolls of Kentmere 100 and 400 and hand-roll them. Then they gave it a new name.
It is a lot of "mumbo-jumbo" for the average American. But, it is actually just a marketing ploy.