First of all, BioAmber, Inc., owns the 2 Canadian subsidiaries. You cannot disconnect them for the purpose of this bankruptcy, especially not to somehow sever the massive debt from the parent company. That's ridiculous to even suggest. Just because the assets the liens were against were to a subsidiary doesn't mean that BioAmber, Inc., can get away from the debt. They can't.
Secondly, those contracts/contractual rights are worth $408k, at the most. That's the price they were offered to the buyer to in the bankruptcy liquidation, simply the amount of unpaid royalties for 2018. There's no gold mine there, just a little more for the 2 secured creditors who are seeing anything from this bankruptcy.