BlackBerry, in a regulatory filing, has named Canso Investment Counsel, Mackenzie Financial, Markel Corp, Qatar Holding, and Brookfield Asset Management as the investors joining Fairfax Financial in raising $1 billion in convertible notes for the beleaguered Canadian firm.

Ontario-based Canso Investment Counsel has invested $300 million (the most of the group), while Fairfax is in for $250 million.

Reuters also reports that BlackBerry would have to pay its debtors a $250 million break fee in the event it found a better deal and changes in control took place.

And if Fairfax and its partners agreed to go ahead with the deal, even after a change of control, BlackBerry would still need to stump up $135 million.

The filing also shows that incoming interim chief executive and executive chairman John Chen will receive a base salary of $1 million and a bonus of up to $2 million.

Barbara Stymiest, chair of the BlackBerry board, said that the current funding “provides an immediate cash injection on terms favourable to BlackBerry”.