I don't think it's a specific entity chomping. If it was, I would expect to see some serious capping and manipulation to enable accumulation at bargain prices, as occurred for some time between 6 - 8c.
Instead, I reckon it's a growing variety of investors hopping on the bus, probably mainly from the US, who are vying between themselves - hence the rapid price climb.
I'm expecting a further climb next week - it may make 27c then a retrace to round 19 - 21c before further gains on news.
BLR Price at posting:
0.0¢ Sentiment: Buy Disclosure: Held