Your post adds extra piece of confirmation that is of a lot of importance and that is the depth they continue to hit chromium at. 700 Meters is a deep hole and Noront has the drills to work at and below this depth. It's not cheap nor easy and you can, as many of us are, be assured Noront isn't continuing at this depth for fun.
Exploration continues and while it's taking longer to get us the comfort news it will be coming and coming and coming.
Noront will, completely ready or not, have to put out a release and soon. Another drop like today and the exchange will insist on answers as to why the drop being afraid like some investors of inside leak. Not that a news release saying something like 'there is no reason for the share price movement management knows of, drilling and exploration continues and news will be released in a timely manner'. Won't help much but wouldn't hurt either.