Chinese made but not the best. I've recently purchased better quality Chinese and American small pliers with better quality. Nice thing is they are reasonably priced for the set. Then buy better for what you use more or need better craftsmanship. DIY grade, not professional grade.
These are constructed to a very low standard. One pair isn't even polished and they don't all close with the surfaces or tips flush. I can't imagine anything associated with snap-on tools being this poorly made. I wouldn't be surprised if this a counterfeit blue-point set.