Yes, there's a lot still on the OTC. But find me any non filers that have ever proved mineral production. Same goes for SEC filers. There might be a couple there.
But few legit miners remain. The TSX and ASE are far better places for junior miners.
And, as gitreal asked, if you're a geotech, you should know that AABB has the look of a fantasy miner... good at mining pocketbooks though....