There is also a solid 1m order second in queue also @1.8c
Accumulator is trying to hold it down maybe. Because if you look on the buy side @1.7c there is also another 1m order. Here are my thoughts...
They have put their 1m order @1.8c to make it seem really big so people drop shares into 1.7c which would benefit them as they're only second in queue. Good chance that they're order @1.7c will get filled before running to 2c.