Sibelco contines to buy MLM shares

I would have thought they would have stopped buying MLM shares after it was revealed in the Target Statement.
Another 21,000 on 29April from my daily S173 requests to MLM.
What possible reason would they be wanting to buy them for?
One would have throught with the CEO of Sibelco facing fines for share manipulation with his previous company that buying (trading) shares could be interpreted as potential manipulation of MLMs share price.
Who knows, did they trade when the VWAP was worked out for hostile Bidders Statement!!!!!