It's all open and not a secret brother. They release the Phoenix through We because they didn't have the equipment to make folders themselves. They used that to launch off their own production.Is this undrstanding the result of a statement from Toor Knives?

Fixed to Folding: Our Evolution Continues
From the very beginning, we have been working towards this day and we are finally able to proudly announce we’ve produced a FULL LINE of folding knives! This concept seemed impossible to us over most of the last seven years, but we put our heads down and worked our asses off to bring a product...

You can also jump on their YouTube channel and get a virtual shop tour, or head over to El Cajon and see directly stuff getting made.