Brian KI think he writes his own stuff:
The beginning of work to develop an underground mine at Red Chris is a key moment in the mine’s life. This is the first step in the development of an underground block cave mine designed to deliver the higher grade, deep East zone copper-gold mineralization to the mill in five to six years. With drilling confirming the presence of even higher grade pods within the deep East zone, a number of options are being studied to mine this higher grade material before block caving operations begin. The aim of this smaller scale underground mining would be to increase cash flow prior to the start of the block cave operations. We, at Imperial, are excited that the development of a
block cave mine at Red Chris, a long-held goal of ours, has now begun.”
a few more details would have been nice..... sip. Sip