I'm gonna guess no for a few reasons. Basing it off of Pantac USA's catalogue, there's a lot of pouches marked Phantom on Evike's site that Pantac doesn't produce. For example, those closed top pouches with D-rings on the flaps. Also, I noticed slight differences on similar Pantac models. For example, the Pantac belt mounted dump pouches has three straps to attach to a belt but the Phantom only appears to have two. Also, as far as I know, Pantac doesn't make woodland gear.
It's kind of confusing since Pantac's name was originally Phantom, but I believe that stuff on Evike isn't Pantac stuff.