Never heard of them. And supplier-provided "COA's" like the one attached tell you nothing about the finished vials, only (maybe) the raws that they're using.
I scratch my head with the number of known decent suppliers out there why people are so eager to "discover" the newest supplier that nobody has ever heard of before. Even if you don't want to go with QSC, there are at least a dozen or more suppliers discussed regularly on this forum that have both their own commissioned Jano test reports at a minimum plus many who have had independent 3rd party testing done by individual customers and/or testing groups and have a pretty good reputation for quality, consistency, and good customer service.