So, what's a Great Panther share worth? My limited experience...

So, what's a Great Panther share worth?
My limited experience with something like this was when a US company took over a small Perth company I had shares in, with uranium tenements in America. It's a process to apply for an international share trading account and I finished up dumping my shares at a massive loss because , if I remember correctly, I was being slugged some sort of annual fee and the share price (of the US co.) was going nowhere.
And every month I was receiving a fair bit of paperwork out of the US.
Pretty sure someone in here can shed some light on this.