The 24-year-old is out of contract this summer and in December the Trotters publicly confirmed they had received two enquiries for the ex-Liverpool forward, who has already scored three times this month.
Now it looks as though his next destination is likely to be south Wales with Freedman confirming Ngog was edging closer to a move back to the Barclays Premier League on Thursday afternoon.
"Swansea enquired last night (Wednesday) about David Ngog's availability," revealed Freedman.
"As we speak right now the two chairmen are talking to see what they can do or what they would like to do. David Ngog is aware of it and he's also having a look at his position.
"There's six months to go left on his contract, I'm in a difficult position, it's very hard to stop a young player going to the Premier League and it's very hard to stop a player with six months left on his contract."
Wanderers' recent financial reports painted a particularly bleak picture and Freedman, who is desperate for new recruits to reinvigorate a team thrashed 7-1 by Reading last weekend, could have more licence to make signings this month with one of his higher earners out of the door.
The former Crystal Palace boss added: "I'd like to think every player has the desire to play in the Premier League. It's going to be very difficult to think he would be here on the Monday morning."