Answering my own question here.
I just found out something interesting.

Brian, do you remember the "Pan Pharmaceuticals" debacle? It was in 2003.
There was a huge product recall and then the TGA suspended their manufacturing licence. Someone else ended up buying the company. Sphere Healthcare. Anyway, I found references online that Pan Pharmaceuticals used to actually manufacture methyl B12 here. This is going back come years now.