I eyeballed the chart again today. ORE is still in the uptrend channel, so I wouldn't get too worried. if I'm convinced a company is going to do well, like I am with ORE, I tend to buy whenever there's a downtrend and then ride the uptrend. I'm not saying it's the best strategy there is, by the way! But I've also noticed that it tends to move 5% up and down on the way down and on the way up. Nothing goes up or down in a straight line, so I wouldn't get too stressed about manipulation, the shorters are a bit of a problem though, but my reading of the shortman chart is that they're about to get one unholy squeeze, which will only increase the share price when they decide they have to buy back the shorted shares.
The catalyst for this may well be the expansion announcement, by the way!