First, some background. The "MasterChef" cookware you have is branded after the TV Show of the same name from 2010 to present. During the run of the show, producers the Gander Group has had a series of contractors manufacture branded cookware, with no consistency or continuity. This cookware is unrelated to the All-Clad Master Chef Line.
Since the pan you have is not the same materials, design, or likely factory as the cookware currently promoted by the show, we can find out nothing about it online. Fortunately, we don't have to.
From the photos, I can see that the pan is all-metal, and is either stainless steel or a combination of stainless and some other metal, most likely aluminum (3-ply cookware). Handles are spot-welded on. You should be able to tell if it's possibly 3-ply by checking the thickness and weight; does it seem likely that there's 3 layers of metal there?
Either way, it will be fine in the oven as long as you don't heat or cool it too fast (e.g., don't put the hot pan down on a cold slab of granite or in a water bath). Even if it's not 3-ply, you won't want rapid temperature changes lest those spot-welds come apart (I know this from bitter personal experience). I'd also avoid putting it in extreme heat situations, like under a hot broiler, just because you don't know that much about the pan.