it's time to jump for joy

On February 2011, Cape Lambert Resources bought 250million shares in MHL driving their stock holding to 14.37% from 10.33% of the company. I don't know about anyone else but this does signal to me some interesting activity going on here without any information from anyone. Could anyone make out the reason for such large increase in shareholding? What is Cape Labert trying to do? What do they see in MHL that they are purchasing more of it?
I already hold millions of options in MHL but this action by CFE has prompted by attention to wanting to find out why??? Anyone got answers?