Yeah, you're right it has been tested in Sth Korea, but...

Yeah, you're right it has been tested in Sth Korea, but companies will only come on board when they are convinced that Vanadium batteries have a future over lithium batteries, in value and reliability. As for what they have in Korea, go to their site and look at their very large modern factory. There's also a Korean mine operation they have a share in, which hopefully will mine Vanadium and Uranium. (Sth Korean Government is supporting the project) That means they can source their raw materials locally. I'm in for the long run.