I made an inquiry about the same issue in late May and received...

I made an inquiry about the same issue in late May and received a reply with exactly the same wording.

It sounded encouraging. They appeared to know the extent of the inflow and the required pump sizing to handle it. The only loose end appeared to be the need to get down to the 5 Level to build a pump station of the required size to "dewater the entire mine". That required 75m of extra depth.

Given that a further month has passed I'm looking forward to the next update with some hopes that the 5 Level has been reached and the pump station is being built.