split the sentence in two separate part

1-Deep drilling at Eagle’s Nest has encountered technical difficulties, which have delayed results. We will report results from the deep drilling when they become available.

.... that mean for me that they already sent the cores of a minimum of 2 holes to the labs and are waiting for the results that are delayed because of the problems they encountered in april. (the result are delayed not the drilling so its not new problems at least)

2-Two holes are currently underway to test the promising structural convergence zone at depth at Eagle’s Nest

... these two holes could be in fact the 4th, 6th , 8th etc ... deep holes.

Im not worrying at all. I bought more yesterday and could buy a bit more im just very patient annd things wll come in due time. We know they are playing with the time but we also know what is in the ground now.